Date   

Re: Excessive usage of water maker membranes

Miles
 

Hi Mark,

I once ruined a set of membranes by putting chlorinated dock water in the boat and then back flushing.  Since then any shore water that goes into the boat first goes through a “whole house” filter that removes chlorine.  To check this, I have test stripes that measure the amount of chlorine in water.  The test kit is sold in tropical fish stores.  My filters are over 10 years old.  I have been told that the more the filters are used, the longer they will last. When I don’t use the water maker much, the TDS goes up toward 300.  When I use the water maker for my total supply off-shore or in a very clean harbor, the TDS goes back down toward 200. 

I agree with the comments.   I also run the water without pressure for several minutes when I turn it on to get all the fresh water from the back flushing out. I agree with Alan that the pressure with fresh water could be damaging.

Regards,

Miles  s/y Ladybug,  sm216,  locked down in Le Marin, Martinique

 


Re: 𝗭𝗢𝗢𝗠 𝗴𝗲𝘁 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿

Anthony Wetmore
 

We would definitely be interested in this as new Santorin owners since December.  We have much to learn.

Tony Wetmore
Notorious


Re: Shaft and propeller for Sharki - R&D project.

Diego de Miguel (Sailing Living Lab) Amel Sharki
 

Merci Philippe!


Re: Shaft and propeller for Sharki - R&D project.

Diego de Miguel (Sailing Living Lab) Amel Sharki
 

Merci Dominique!


Re: 𝗭𝗢𝗢𝗠 𝗴𝗲𝘁 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿

PAOLO CUNEO
 

Hi Bill, Hi all,
No matter the topics, it is a fantastic opportunity to get closer to our great community. I am in by all means!

Paolo Cuneo
SM 454 “ Whisper”


Inviato da iPad


Re: 𝗭𝗢𝗢𝗠 𝗴𝗲𝘁 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿

Charles Bell
 

Interested, please invite me,


Re: Excessive usage of water maker membranes

Paul Dowd and Sharon Brown
 

Mohammad,

 

I was told by Martin to run the water maker with the pressure at the beginning of the green zone. It also says this in the manual.

 

Cheers,

Paul

S/Y Ya Fohi - Amel 54 #98 - Grenada

 

From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> On Behalf Of Mohammad Shirloo
Sent: 19 April 2020 08:32
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] Excessive usage of water maker membranes

 

Hi;

 

When we first purchased Kokomo, I had detailed discussions with Martin, the head tech at Dessalator, about the environments that the water maker could be used and best practices. The following was my takeaway:

 

  1. The water maker can be run safely in most waters. This includes harbors, marinas and even water that is not clear. I was told that the main detriment would be more frequent changes to the pre-filters.
  2. The water maker can be, and should be, run in the high end of the green zone. This will lead to more water production, without any downsides.
  3. Performing an auto fresh water flush after every usage is unnecessary and wastes about 20 liters of fresh water. As long as the water maker in run at least every week, a fresh water flush is unnecessary. We simply stop making water by shutting down the switch and then backing out the pressure valve.
  4. Utilize the powder provided by Dessalator to prep the membranes for the winter season.

 

We have done the above for 5 seasons of about 5 months each. The pre-filters typically last a whole season. We never put any water in the tank other than from the water maker. The water quality is always below 250 PPM. When we purchased Kokomo, the water maker had only 60 hours on it. So, I’m fairly sure that our membranes are original from 2008 and therefore 12 years old. The water maker now has around 550 hours. I was told that after 500 hours, the quality will probably start to drop. Our usage has solely been in the Med.

 

Happy Sailing;

 

 

Mohammad and Aty

B&B Kokomo

AMEL 54 #099

 

From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> On Behalf Of Mark Erdos via groups.io
Sent: Saturday, April 18, 2020 9:35 PM
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] Excessive usage of water maker membranes

 

Hi Colin,

 

Yes, I re-read that part and it is a little confusing how I wrote it. In marina, we do a fresh water flush aobut once a week. We do not run the water maker in that environment.

 

Thanks for the insight, I guess I need to be more fussy about where we run it. I thought the pre-filter would help a lot. I guess not.

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff

www.creampuff.us

 

From: main@AmelYachtOwners.groups.io [mailto:main@AmelYachtOwners.groups.io] On Behalf Of islandpearl2_sm2k332
Sent: Saturday, April 18, 2020 10:47 PM
To: main@amelyachtowners.groups.io
Subject: Re: [AmelYachtOwners] Excessive usage of water maker membranes

 

Hi Mark

 

We had the 100L/Hr Duo on Island Pearl II and went around the work in three years with a new 2016 set of membranes. Those membranes were still perfect at the end of our trip doing a full 100L/Hr easily on the a/c current but slightly down to 75L/hr on the DC current motor. 

 

We were absolutely fussy about the cleanliness of ocean water before running it and were sometimes scoffed at by others eg in Rodrigues (Indian Ocean) for lifting anchor, risking losing our good spot to go out to sea every four-five days to make water whilst other cruiser friends simply made water inside the large seawater harbour where we felt the water was not up to scratch. Also, we never took the boat out onto the hard for a season, even though we had planned to do this in the Caribbean in 2019.

 

If you are careful like this, which I suspect you are, then there must be something else at play with your system and I look forward to hearing about that from other more experienced cruisers here.

 

Also, since we have communicated often and I admire your equally careful approach to looking after Creampuff, I highly suspect that when you refer to "running your watermaker at least once per week in marina's", that you actually meant "doing a freshwater flush cycle" in the marina from your tank as per the manual requirements.... rather than actually making water from the extremely dirty marina seawater which would totally explain everything about your problems, but which I am equally sure you would never have done. 

 

Colin Streeter

Brisbane ex Island Pearl II

 

On Sun, Apr 19, 2020 at 12:10 PM Danny and Yvonne SIMMS <simms@...> wrote:

Hi Mark.

I am very careful about where i run my watermaker. Never in a marina and it has to be an exeptionaly clean harbour before I will run it there. Also I am paranoid about even traces of chlorine. It is many years since I allowed any chlorinated water into my tank. However you living full time aboard would suggest a lot of use. Like a car,  its not the time that wears them out but the milage. 

Regards

Danny

SM 299

Ocean Pearl

On 19 April 2020 at 12:21 Mark Erdos <mcerdos@...> wrote:

I need a little help with water maker usage and maintenance, please.

 

Cream Puff has a 24v D60 water-maker. My problem is we seem to be going through membranes at the rate of a pair a year. I have read where others have used the same set of membranes for years and still get drinkable water. This is not the case with us. We are in our 5th year of full time cruising and are now on our 6th set of membranes.

 

When I last change membranes in Colombia, this was about March 2019. Our current membranes are just over a year old. The PPMs are starting to creep up a bit now and we have gone from the 300 range to the 500 range. We notice a change in drinking quality over 600 PPMs. This is when we usually change the membranes.

 

We run the water-maker at least once a week when in a marina, flush it with the fresh water rinse. I have a double charcoal filter set up for the tank rinse. When on anchor it is run just about every day. I am careful to watch the pressure and water making float gauge. I normally set it at 55 liters per hour and this put the pressure in lower side of the green range.

 

Any ideas why our membranes are not lasting or why our PPMs creep up?

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Tahiti, French Polynesia

www.creampuff.us

 


 


 


 

--

Colin Streeter

0411 016 445


--
Cheers
Paul
Ya Fohi - Amel 54 #98


Re: Excessive usage of water maker membranes

Paul Dowd and Sharon Brown
 

Mark,

 

Mine recently went bad after just a few months use. It turns out that there was a boat upwind of us in the anchorage leaking diesel. I’m told that any kind of fuel leak is very bad for membranes and can destroy them quickly. If you are using your water maker in a marina on a regular basis then I would think there is a possibility that it may be a  small quantity of hydrocarbons in the water on a regular basis getting into your membranes.

 

Cheers,

Paul

S/Y Ya Fohi - Amel 54 #98 - Grenada

 

From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> On Behalf Of Mark Erdos
Sent: 19 April 2020 01:22
To: AmelYachtOwners@groups.io
Subject: [AmelYachtOwners] Excessive usage of water maker membranes

 

I need a little help with water maker usage and maintenance, please.

 

Cream Puff has a 24v D60 water-maker. My problem is we seem to be going through membranes at the rate of a pair a year. I have read where others have used the same set of membranes for years and still get drinkable water. This is not the case with us. We are in our 5th year of full time cruising and are now on our 6th set of membranes.

 

When I last change membranes in Colombia, this was about March 2019. Our current membranes are just over a year old. The PPMs are starting to creep up a bit now and we have gone from the 300 range to the 500 range. We notice a change in drinking quality over 600 PPMs. This is when we usually change the membranes.

 

We run the water-maker at least once a week when in a marina, flush it with the fresh water rinse. I have a double charcoal filter set up for the tank rinse. When on anchor it is run just about every day. I am careful to watch the pressure and water making float gauge. I normally set it at 55 liters per hour and this put the pressure in lower side of the green range.

 

Any ideas why our membranes are not lasting or why our PPMs creep up?

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Tahiti, French Polynesia

www.creampuff.us

 


--
Cheers
Paul
Ya Fohi - Amel 54 #98


Re: Excessive usage of water maker membranes

Alan Leslie
 

Regarding the air...motor sailing...
We too have been doing this for years without problems. If we know we'll have the main engine on for a while, the watermaker is always on, same when running the generator when sailing on passage...or at anchor.
Our membranes are now 7 years old.
Cheers
Alan
Elyse SM437 ... hiding out in Opua 


Re: Excessive usage of water maker membranes

Mohammad Shirloo
 

Hi;

 

When we first purchased Kokomo, I had detailed discussions with Martin, the head tech at Dessalator, about the environments that the water maker could be used and best practices. The following was my takeaway:

 

  1. The water maker can be run safely in most waters. This includes harbors, marinas and even water that is not clear. I was told that the main detriment would be more frequent changes to the pre-filters.
  2. The water maker can be, and should be, run in the high end of the green zone. This will lead to more water production, without any downsides.
  3. Performing an auto fresh water flush after every usage is unnecessary and wastes about 20 liters of fresh water. As long as the water maker in run at least every week, a fresh water flush is unnecessary. We simply stop making water by shutting down the switch and then backing out the pressure valve.
  4. Utilize the powder provided by Dessalator to prep the membranes for the winter season.

 

We have done the above for 5 seasons of about 5 months each. The pre-filters typically last a whole season. We never put any water in the tank other than from the water maker. The water quality is always below 250 PPM. When we purchased Kokomo, the water maker had only 60 hours on it. So, I’m fairly sure that our membranes are original from 2008 and therefore 12 years old. The water maker now has around 550 hours. I was told that after 500 hours, the quality will probably start to drop. Our usage has solely been in the Med.

 

Happy Sailing;

 

 

Mohammad and Aty

B&B Kokomo

AMEL 54 #099

 

From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> On Behalf Of Mark Erdos via groups.io
Sent: Saturday, April 18, 2020 9:35 PM
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] Excessive usage of water maker membranes

 

Hi Colin,

 

Yes, I re-read that part and it is a little confusing how I wrote it. In marina, we do a fresh water flush aobut once a week. We do not run the water maker in that environment.

 

Thanks for the insight, I guess I need to be more fussy about where we run it. I thought the pre-filter would help a lot. I guess not.

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff

www.creampuff.us

 

From: main@AmelYachtOwners.groups.io [mailto:main@AmelYachtOwners.groups.io] On Behalf Of islandpearl2_sm2k332
Sent: Saturday, April 18, 2020 10:47 PM
To: main@amelyachtowners.groups.io
Subject: Re: [AmelYachtOwners] Excessive usage of water maker membranes

 

Hi Mark

 

We had the 100L/Hr Duo on Island Pearl II and went around the work in three years with a new 2016 set of membranes. Those membranes were still perfect at the end of our trip doing a full 100L/Hr easily on the a/c current but slightly down to 75L/hr on the DC current motor. 

 

We were absolutely fussy about the cleanliness of ocean water before running it and were sometimes scoffed at by others eg in Rodrigues (Indian Ocean) for lifting anchor, risking losing our good spot to go out to sea every four-five days to make water whilst other cruiser friends simply made water inside the large seawater harbour where we felt the water was not up to scratch. Also, we never took the boat out onto the hard for a season, even though we had planned to do this in the Caribbean in 2019.

 

If you are careful like this, which I suspect you are, then there must be something else at play with your system and I look forward to hearing about that from other more experienced cruisers here.

 

Also, since we have communicated often and I admire your equally careful approach to looking after Creampuff, I highly suspect that when you refer to "running your watermaker at least once per week in marina's", that you actually meant "doing a freshwater flush cycle" in the marina from your tank as per the manual requirements.... rather than actually making water from the extremely dirty marina seawater which would totally explain everything about your problems, but which I am equally sure you would never have done. 

 

Colin Streeter

Brisbane ex Island Pearl II

 

On Sun, Apr 19, 2020 at 12:10 PM Danny and Yvonne SIMMS <simms@...> wrote:

Hi Mark.

I am very careful about where i run my watermaker. Never in a marina and it has to be an exeptionaly clean harbour before I will run it there. Also I am paranoid about even traces of chlorine. It is many years since I allowed any chlorinated water into my tank. However you living full time aboard would suggest a lot of use. Like a car,  its not the time that wears them out but the milage. 

Regards

Danny

SM 299

Ocean Pearl

On 19 April 2020 at 12:21 Mark Erdos <mcerdos@...> wrote:

I need a little help with water maker usage and maintenance, please.

 

Cream Puff has a 24v D60 water-maker. My problem is we seem to be going through membranes at the rate of a pair a year. I have read where others have used the same set of membranes for years and still get drinkable water. This is not the case with us. We are in our 5th year of full time cruising and are now on our 6th set of membranes.

 

When I last change membranes in Colombia, this was about March 2019. Our current membranes are just over a year old. The PPMs are starting to creep up a bit now and we have gone from the 300 range to the 500 range. We notice a change in drinking quality over 600 PPMs. This is when we usually change the membranes.

 

We run the water-maker at least once a week when in a marina, flush it with the fresh water rinse. I have a double charcoal filter set up for the tank rinse. When on anchor it is run just about every day. I am careful to watch the pressure and water making float gauge. I normally set it at 55 liters per hour and this put the pressure in lower side of the green range.

 

Any ideas why our membranes are not lasting or why our PPMs creep up?

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Tahiti, French Polynesia

www.creampuff.us

 


 


 


 

--

Colin Streeter

0411 016 445


Re: Excessive usage of water maker membranes

Danny and Yvonne SIMMS
 

We make water while motor sailing. No problems and we have the Amel single through hull for salt water intake. We never use chemicals for sterilising or pickling. Just back flush with NON chorinated water from the tank with the pressure valve totally released after each use.

Kind Regards

Danny

SM 299

Ocean Pearl

Kind Regards

DANNY

SM 299

OCEAN PEARL

On 19 April 2020 at 18:38 Ken Powers SV Aquarius <ken@...> wrote:

Hello Mark,

On Aquarius, we also have this problem with our 24V D60.  We continually see an increase in the ppm each year.  I have a few questions so we might flush this out...

1) Do you have a pre-pump that feeds your high pressure pump?
2) For those that have a pre-pump, do you see this problem?

I am starting to get the feeling that cavitation do to air in the system is causing the problem on Aquarius.  We only have a single sea water intake, stock Amel, and we do make water while motor sailing, and this could cause air to get into the water-maker system.  With the air in the system I am led to believe this is like a jack hammer on the membranes causing micro tears to form.  Overtime, the holes get bigger, and whaalaa 1000 ppm.

I don't have the pre-pump on Aquarius, but I am planing to add the pump when I install new membranes in about 6 months. 

Does anyone have any thoughts about this?

Ken
Aboard Aquarius Locked Down in Phuket
SM2K#262


Re: 𝗭𝗢𝗢𝗠 𝗴𝗲𝘁 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿

Nick Fowle
 

Hi Bill,

If the Time Zome works for me (Singaoire) I would be interested . 

Regds



On Sun, 19 Apr 2020 at 1:46 PM, Meadow Marmar via groups.io <mnimitz=aol.com@groups.io> wrote:

Hi Bill,

Rick and I would love to be included as well! 


Warm regards,

Meadow
S/V Althea SM317


Re: Excessive usage of water maker membranes

Ken Powers SV Aquarius
 

Hello Mark,

On Aquarius, we also have this problem with our 24V D60.  We continually see an increase in the ppm each year.  I have a few questions so we might flush this out...

1) Do you have a pre-pump that feeds your high pressure pump?
2) For those that have a pre-pump, do you see this problem?

I am starting to get the feeling that cavitation do to air in the system is causing the problem on Aquarius.  We only have a single sea water intake, stock Amel, and we do make water while motor sailing, and this could cause air to get into the water-maker system.  With the air in the system I am led to believe this is like a jack hammer on the membranes causing micro tears to form.  Overtime, the holes get bigger, and whaalaa 1000 ppm.

I don't have the pre-pump on Aquarius, but I am planing to add the pump when I install new membranes in about 6 months. 

Does anyone have any thoughts about this?

Ken
Aboard Aquarius Locked Down in Phuket
SM2K#262


Re: 𝗭𝗢𝗢𝗠 𝗴𝗲𝘁 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿

Meadow Marmar
 

Hi Bill,

Rick and I would love to be included as well! 


Warm regards,

Meadow
S/V Althea SM317


Re: Excessive usage of water maker membranes

Alan Leslie
 

Something seriously amiss here.
The previous owner replaced the membranes in 2013 just before we bought Elyse.
The system has been running fine ever since. We have an inline TDS monitor and the TDS is still after 7 years less than 300...depending on temperature it can be as low as 150.
We never run the watermaker in the marina, but have a timer and solenoid system that flushes the system with tank water every two days when the boat is left in the marina as it is now, unfortunately.
We never put shore water in the tanks, only RO water .
One thing is that when flushing with fresh water the outlet valve should be all the way open i.e. no pressure across the membrane, and when starting up to make fresh water, the system should be flushed with saltwater for a few minutes to flush out all the fresh water before increasing the pressure to make water. I believe that having high pressure across these membranes with fresh water can ruin them.
Cheers
Alan
Elyse SM437 


Re: 𝗭𝗢𝗢𝗠 𝗴𝗲𝘁 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿

Davi Rozgonyi
 

Hey all, would definitely hang out and listen and learn if the time difference works out. Locked down in Corfu... 
Davi
SM56 Wake


Re: Excessive usage of water maker membranes

Mark Erdos
 

Hi Colin,

 

Yes, I re-read that part and it is a little confusing how I wrote it. In marina, we do a fresh water flush aobut once a week. We do not run the water maker in that environment.

 

Thanks for the insight, I guess I need to be more fussy about where we run it. I thought the pre-filter would help a lot. I guess not.

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff

www.creampuff.us

 

From: main@AmelYachtOwners.groups.io [mailto:main@AmelYachtOwners.groups.io] On Behalf Of islandpearl2_sm2k332
Sent: Saturday, April 18, 2020 10:47 PM
To: main@amelyachtowners.groups.io
Subject: Re: [AmelYachtOwners] Excessive usage of water maker membranes

 

Hi Mark

 

We had the 100L/Hr Duo on Island Pearl II and went around the work in three years with a new 2016 set of membranes. Those membranes were still perfect at the end of our trip doing a full 100L/Hr easily on the a/c current but slightly down to 75L/hr on the DC current motor. 

 

We were absolutely fussy about the cleanliness of ocean water before running it and were sometimes scoffed at by others eg in Rodrigues (Indian Ocean) for lifting anchor, risking losing our good spot to go out to sea every four-five days to make water whilst other cruiser friends simply made water inside the large seawater harbour where we felt the water was not up to scratch. Also, we never took the boat out onto the hard for a season, even though we had planned to do this in the Caribbean in 2019.

 

If you are careful like this, which I suspect you are, then there must be something else at play with your system and I look forward to hearing about that from other more experienced cruisers here.

 

Also, since we have communicated often and I admire your equally careful approach to looking after Creampuff, I highly suspect that when you refer to "running your watermaker at least once per week in marina's", that you actually meant "doing a freshwater flush cycle" in the marina from your tank as per the manual requirements.... rather than actually making water from the extremely dirty marina seawater which would totally explain everything about your problems, but which I am equally sure you would never have done. 

 

Colin Streeter

Brisbane ex Island Pearl II

 

On Sun, Apr 19, 2020 at 12:10 PM Danny and Yvonne SIMMS <simms@...> wrote:

Hi Mark.

I am very careful about where i run my watermaker. Never in a marina and it has to be an exeptionaly clean harbour before I will run it there. Also I am paranoid about even traces of chlorine. It is many years since I allowed any chlorinated water into my tank. However you living full time aboard would suggest a lot of use. Like a car,  its not the time that wears them out but the milage. 

Regards

Danny

SM 299

Ocean Pearl

On 19 April 2020 at 12:21 Mark Erdos <mcerdos@...> wrote:

I need a little help with water maker usage and maintenance, please.

 

Cream Puff has a 24v D60 water-maker. My problem is we seem to be going through membranes at the rate of a pair a year. I have read where others have used the same set of membranes for years and still get drinkable water. This is not the case with us. We are in our 5th year of full time cruising and are now on our 6th set of membranes.

 

When I last change membranes in Colombia, this was about March 2019. Our current membranes are just over a year old. The PPMs are starting to creep up a bit now and we have gone from the 300 range to the 500 range. We notice a change in drinking quality over 600 PPMs. This is when we usually change the membranes.

 

We run the water-maker at least once a week when in a marina, flush it with the fresh water rinse. I have a double charcoal filter set up for the tank rinse. When on anchor it is run just about every day. I am careful to watch the pressure and water making float gauge. I normally set it at 55 liters per hour and this put the pressure in lower side of the green range.

 

Any ideas why our membranes are not lasting or why our PPMs creep up?

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Tahiti, French Polynesia

www.creampuff.us

 


 


 


 

--

Colin Streeter

0411 016 445


Re: Excessive usage of water maker membranes

Colin - ex SV Island Pearl
 

Hi Mark

We had the 100L/Hr Duo on Island Pearl II and went around the work in three years with a new 2016 set of membranes. Those membranes were still perfect at the end of our trip doing a full 100L/Hr easily on the a/c current but slightly down to 75L/hr on the DC current motor. 

We were absolutely fussy about the cleanliness of ocean water before running it and were sometimes scoffed at by others eg in Rodrigues (Indian Ocean) for lifting anchor, risking losing our good spot to go out to sea every four-five days to make water whilst other cruiser friends simply made water inside the large seawater harbour where we felt the water was not up to scratch. Also, we never took the boat out onto the hard for a season, even though we had planned to do this in the Caribbean in 2019.

If you are careful like this, which I suspect you are, then there must be something else at play with your system and I look forward to hearing about that from other more experienced cruisers here.

Also, since we have communicated often and I admire your equally careful approach to looking after Creampuff, I highly suspect that when you refer to "running your watermaker at least once per week in marina's", that you actually meant "doing a freshwater flush cycle" in the marina from your tank as per the manual requirements.... rather than actually making water from the extremely dirty marina seawater which would totally explain everything about your problems, but which I am equally sure you would never have done. 

Colin Streeter
Brisbane ex Island Pearl II

On Sun, Apr 19, 2020 at 12:10 PM Danny and Yvonne SIMMS <simms@...> wrote:

Hi Mark.

I am very careful about where i run my watermaker. Never in a marina and it has to be an exeptionaly clean harbour before I will run it there. Also I am paranoid about even traces of chlorine. It is many years since I allowed any chlorinated water into my tank. However you living full time aboard would suggest a lot of use. Like a car,  its not the time that wears them out but the milage. 

Regards

Danny

SM 299

Ocean Pearl

On 19 April 2020 at 12:21 Mark Erdos <mcerdos@...> wrote:

I need a little help with water maker usage and maintenance, please.

 

Cream Puff has a 24v D60 water-maker. My problem is we seem to be going through membranes at the rate of a pair a year. I have read where others have used the same set of membranes for years and still get drinkable water. This is not the case with us. We are in our 5th year of full time cruising and are now on our 6th set of membranes.

 

When I last change membranes in Colombia, this was about March 2019. Our current membranes are just over a year old. The PPMs are starting to creep up a bit now and we have gone from the 300 range to the 500 range. We notice a change in drinking quality over 600 PPMs. This is when we usually change the membranes.

 

We run the water-maker at least once a week when in a marina, flush it with the fresh water rinse. I have a double charcoal filter set up for the tank rinse. When on anchor it is run just about every day. I am careful to watch the pressure and water making float gauge. I normally set it at 55 liters per hour and this put the pressure in lower side of the green range.

 

Any ideas why our membranes are not lasting or why our PPMs creep up?

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Tahiti, French Polynesia

www.creampuff.us

 


 


 



--
Colin Streeter
0411 016 445


Re: Excessive usage of water maker membranes

Danny and Yvonne SIMMS
 

Hi Mark.

I am very careful about where i run my watermaker. Never in a marina and it has to be an exeptionaly clean harbour before I will run it there. Also I am paranoid about even traces of chlorine. It is many years since I allowed any chlorinated water into my tank. However you living full time aboard would suggest a lot of use. Like a car,  its not the time that wears them out but the milage. 

Regards

Danny

SM 299

Ocean Pearl

On 19 April 2020 at 12:21 Mark Erdos <mcerdos@...> wrote:

I need a little help with water maker usage and maintenance, please.

 

Cream Puff has a 24v D60 water-maker. My problem is we seem to be going through membranes at the rate of a pair a year. I have read where others have used the same set of membranes for years and still get drinkable water. This is not the case with us. We are in our 5th year of full time cruising and are now on our 6th set of membranes.

 

When I last change membranes in Colombia, this was about March 2019. Our current membranes are just over a year old. The PPMs are starting to creep up a bit now and we have gone from the 300 range to the 500 range. We notice a change in drinking quality over 600 PPMs. This is when we usually change the membranes.

 

We run the water-maker at least once a week when in a marina, flush it with the fresh water rinse. I have a double charcoal filter set up for the tank rinse. When on anchor it is run just about every day. I am careful to watch the pressure and water making float gauge. I normally set it at 55 liters per hour and this put the pressure in lower side of the green range.

 

Any ideas why our membranes are not lasting or why our PPMs creep up?

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Tahiti, French Polynesia

www.creampuff.us

 


 


 


Re: Excessive usage of water maker membranes

Bill Hall
 

Running your water maker in a marina environment can expose it to oil and fuel residues.  Oils will ruin water maker membrains.   If you don’t have an oil separation filter on your intake it would be worth installing one

On Sat, Apr 18, 2020 at 6:18 PM Mark Erdos <mcerdos@...> wrote:

I need a little help with water maker usage and maintenance, please.

 

Cream Puff has a 24v D60 water-maker. My problem is we seem to be going through membranes at the rate of a pair a year. I have read where others have used the same set of membranes for years and still get drinkable water. This is not the case with us. We are in our 5th year of full time cruising and are now on our 6th set of membranes.

 

When I last change membranes in Colombia, this was about March 2019. Our current membranes are just over a year old. The PPMs are starting to creep up a bit now and we have gone from the 300 range to the 500 range. We notice a change in drinking quality over 600 PPMs. This is when we usually change the membranes.

 

We run the water-maker at least once a week when in a marina, flush it with the fresh water rinse. I have a double charcoal filter set up for the tank rinse. When on anchor it is run just about every day. I am careful to watch the pressure and water making float gauge. I normally set it at 55 liters per hour and this put the pressure in lower side of the green range.

 

Any ideas why our membranes are not lasting or why our PPMs creep up?

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Tahiti, French Polynesia

www.creampuff.us