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Re: [Amel Yacht Owners] Water Maker Salinity Sensor is Not Hooked up to Anything
Ian Shepherd <ocean53@...>
Hi Gary,
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Your latest findings make further disturbing reading. Crusader went back in the water a few days ago, and as promised, I have repeated the tests that you did on your Dessalator water maker. I have a 160 l/h unit which is now 3 years old. I removed the salinity tester from the output stage and plugged the hole with a cork. I started the water maker, got the green 'good quality' light, then immersed the salinity probe in a cup of seawater. NOTHING HAPPENED. The water maker continued to fill my freshwater tank. I then shut the unit down and restarted it with the probe still immersed in seawater. THE GREEN LIGHT CAME ON AFTER ABOUT 55 SECONDS AND WATER WAS DIVERTED INTO MY TANK. So you are absolutely right. The safety feature on our water makers is a complete sham. I find it quite amazing that any reputable manufacturer could sell/install what is a life saving piece of equipment for those of us on long voyages with such a potentially dangerous fault. Every other manufacturer of desalination equipment that I have inspected has a similar shutdown feature, that I assume, works? Why does it not on a Dessalator unit? Amel say in their manual that there is bad water protection, so why has it been disabled? If Amel are aware that Pin11 is open circuit, then I consider them to be highly irresponsible in leading their customers to believe that the system that they chose, sold and installed does have a reliable diversion system in the event of bad water being produced. This is especially true on a yacht where there is only one fresh water tank. Pollute that tank and you have nothing good left. I shall write to M. Lemonnier and ask what solution Amel propose to assure their customers that they have a safe water making system on board. I would urge everyone else to do the same. The Dessalator system would, I think, not comply with the Trades Description Act. Thank you Gary for all your hard detective work. I am sure it is appreciated by many of us. Regards Ian Shepherd SM 414 Crusader
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From: amelliahona Date: 06/11/06 05:35:27 To: amelyachtowners@yahoogroups.com Subject: [Amel Yacht Owners] Water Maker Salinity Sensor is Not Hooked up to Anything I have spent more than 40 hours drawing complete schematics and logic diagrams for the Dessalator water maker Control Board on my Amel SM 2000 , Hull # 335. I have verified that the salinity sensor is wired to the circuit board on pin 11 and pin 12 of plug # 2 (see the photo section for a component labeled photo of this board). I HAVE VERIFIED THAT PIN 11 OF THIS BOARD IS NOT CONNECTED TO ANYTHING. PIN 12 GOES TO GROUND BUT THE SALINITY SENSOR THUS CONNECTED IS AN INCOMPLETE CIRCUIT AND IS NOT FUNCTIONAL. FURTHERMORE, AS CURRENTLY CONFIGURED I CAN NOT DETERMINE ANY WAY TO MAKE THE SALINITY SENSOR SYSTEM FUNCTIONAL. I CAN ONLY CONCLUDE THAT THE SALINITY SENSOR ON MY WATERMAKER IS A SHAM INSTALLATION. I URGE EVERY AMEL OWNER TO INSPECT THEIR DESSALATOR WATERMAKER CIRCUIT BOARD. IF YOUR CIRCUIT BOARD IS THE SAME ONE AS DEPICTED IN THE PHOTO SECTION AND THE SALINITY SENSOR IS WIRED TO PLUG 2, PINS 11 AND 12 THEN YOU CAN BE ASSURED THAT THE SALINITY SENSOR IS NOT FUNCTIONAL IN ANY WAY. Another way to determine if your salinity sensor is functional is to see if your system changes to "good quality" and green LED light at the 55 second to 65 second mark. If it does then the salinity sensor is NOT functional. The timing function of the control board determines the start up sequence and does function for high pressure (overpressure) shut down of the system. No other sensing inputs to the board are functional. It takes about 3 to 4 minutes for the TDS creep to come down to good quality water after system start up. This brief period of bad water production is of no consequence when compared to the major volume of water production that follows. I urge all owners to install a continuous EC (electrical conductivity) monitor with alarm funciton on the product water line of their water maker. If you do this you will soon find that the high EC alarm will sound for the first 3 - 4 minutes after startup I have installed a mute switch in the alarm relay line so that I can monitor the start up sequence with the the alarm muted and when the EC drops to 450 microSiemens/cm (about 500 ppm TDS) I can "arm" the alarm by throwing the switch to allow the alarm to sound the second EC goes over 500 mSiemens/cm. Dessalator and the Dessalator UK rep have intimated that Amel made this type of installation. But since the wiring inside the electrical box was undoubtedly made by Dessalator and not Amel, and Amel has represented all along that the salinity sensor system was functional, I believe this sham installation was unknown to Amel. The integrity with which Amel has always conducted itself leads me to believe that this fraud was NOT perpetrated by Amel. I don't fault Rod Boreham, the UK representative for Dessalator, as he was just passing along what Dessalator was telling him. You now know the truth about the salinity sensor on our Dessalator water maker. Your opposing opinions are welcome. I would like nothing more than to be proven wrong on this issue. Regards, Gary Silver s/v Liahona (currently on the hard in Jolly Harbor Antiqua) Hull #335
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Re: [Amel Yacht Owners] watermaker,TDS meter
Ian Shepherd <ocean53@...>
Hi John,
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Is your TDS meter made by HM Digital? Mine is, and no matter where I put it in the blue output line, all I get is an 'Err' message when the water maker is producing water. It does give a reading when the flow is stopped, i.e. Just after shutdown, and it works fine in a cup of water. It seems not able to cope with a decent flow rate. I have tried just after the membrane output and just after the control panel with the same result. I have waited 5-10 minutes as per Gary's suggestion, but get the same result. I would appreciate any advice. Like you, I have never used chemicals on my membranes. Only the occasional back flush with self made water when not in use for a while. Cheers Ian Shepherd SM 414 Crusader
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From: John and Anne on Bali Hai Date: 06/08/06 09:17:08 To: amelyachtowners@yahoogroups.com Subject: [Amel Yacht Owners] watermaker,TDS meter There seems to be no doubt that the dessalateur salinity detector is non functioning.A cheap and easy solution is to fit a simple TDS meter in the output line.Such a meter is sold by an American company tdsmeter.com and also sold in the UK ro-man.com for £23.50. It is very small and has two sensors. I did not use the "in" sensor and put the "out" sensor in the blue output line which can be found behind the wooden cover at the front ot the big cockpit locker. This blue pipe is easily cut with a razor knife and the ends pushed in as far as they will go into the sensor. The wires from the sensors are connected to the meter with a plug which is quite hard to pull out. Once removed the plug can be pushed through the small gap created by removing the screws holding the panel in place in the galley. The meter is held in place with velcro. The actual meter is only 3x2x0.75 inches with a very small screen.It is powered by two button cells and stays on for about 20-30 seconds when the on button is pushed. It does not have an alarm. It is sold either with fittings for a small or a larger tube which is needed for my 160ltr ph watermaker.Make sure that the tubes are pushed fully in and the do a freshwater flush of the membranes to make sure there are no leaks before replacing the coverboard. I used it yesterday for the first time and got an initial reading of over 9,000 ppm which soon went down to about 360ppm which is better than Maltese mains water. Incidentally I have followed Olivier's advice and never sterilised or pickled the membranes which are still delivering 160 ltr. ph. even though the machine stands idle for about five months a year. We do however always flush it with product water after use if it is going to stand idle for more than a few days. We never take on shore water and rely totally on this machine. With the benefit of hind sight I should have put both sensors in the product out line ! Best wishes to all, Anne and John, SM 319
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Re: Water Maker
amelliahona <no_reply@...>
Hi Ian:
Mine is the 120 lph (now 160 lph with the new membranes) 220 VAC 50 hertz model. My membranes had only 185 hours on them when they failed. As I previously mentioned I am sure that their premature demise was related to prolonged periods of pickling with pickling solution that was way too concentrated. This due to my ignorance about the bad effects of pickling and poor instructions from Dessalator (i.e. no really useful owners manual). As I noted I don't plan to ever pickle the system again. The boat is now on the hard in Jolly Harbor Antiqua for the hurricane season and I have rigged a multiday timer with a relay to fllush the system with fresh water for 1 minutes three times per week. The original Amel pressure water pump flushes about 7 liters per minute through the system. PS I had a one hour long discussion with Rod Boreham (UK rep for Dessalator) yesterday about my findings related to the non-connected salinity sensor. He notes that his wiring diagrams do not match the photo of the circuit board that I sent him but also that the spare board he has in his parts supply matches my photo. I noted also that the wiring installation diagram supplied by Amel for my system doesn't match the system installed in my boat as well. He doesn't know for sure but wondered if perhaps the salinity sensor hook up and/or the control board were custom made at Amel's request. I suspect we will never know for sure why or at who's request the salinity sensors were installed but not connected to anything, but at least we now know that it doesn' work and can take necessary action. Regards, Gary Amel SM 2000 Hull # 3335 --- In amelyachtowners@yahoogroups.com, "Ian & Judy Jenkins" <ianjudyjenkins@...> wrote:
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Re: [Amel Yacht Owners] Watermaker TDS and RIB
ianjenkins1946 <ianjudyjenkins@hotmail.com>
Dear John and Anne, Thanks for those tips. Judy, who is a great water drinker, has a prejudice against the water maker water even though I catch her out on a regular basis with blind tastings against whatever bottled water she has obliged me to lug back from some distant supermarket. As a result I have bought the portable TDS meter so that we can have further competitions on board between the Made water and the Bought water. I am sure the Made water will beat the Bought water on a regular basis but, after 35 years of marriage the innermost workings of Judy's mind are still a complete mystery to me so I am not holding my breath that I shall be able to change her preference.Still, we shall have fun doing all our comparisons. Watch this space! Ian.
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From: "John and Anne on Bali Hai" <hollamby@compuserve.com>
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bowthruster
ivarmylde <mylde@...>
Thks to every who sent me replies about problems with the thruster. I
did manage to repair it - it was slightly out of position and I asjusted the control box ? a bit down so that the metal arrows had good contact with the pins over and under the control box. Charlie , I will report about Trapani later. Rgds Ivar Mylde SM 53 Silfrania
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Re: [Amel Yacht Owners] Re: SuperMaramu vs Maramu vs Santorin.
Museum <museum@...>
Just to correct the information on the Maramu:
From the mid eighties this model was equipped with electrical furling genoa and main as well as with a retractable bow thruster. The difference between late Maramu’s and Santorin’s is therefore mainly the Amel C-drive system, the winged ballast and some hull modifications – e.g. it is somewhat lighter and will sail a bit faster in most situations. Best Regards, Lars, Denmark _____ Fra: amelyachtowners@yahoogroups.com [mailto:amelyachtowners@yahoogroups.com] På vegne af abulerhum Sendt: 13. juni 2006 02:48 Til: amelyachtowners@yahoogroups.com Emne: [Amel Yacht Owners] Re: SuperMaramu vs Maramu vs Santorin. --- In amelyachtowners@ <mailto:amelyachtowners%40yahoogroups.com> yahoogroups.com, "uno.genesis" <uno.genesis@...> wrote: I will sumarize quickly, so it will be very uncomplete. Maramu and Santorin are of the same size (46 ft), Super maramu is 53ft. There are many difference between Maramu and Santorin. main differences are: Maramu: -line shaft -3 manual rolling sails -made until 89 -price range 100 / 150k Euro Santorin -Amel type transmission (C) -Genoa and main electric furling. Artimon manual -from 89 to 97 (140 made) -improved hull -winged ballast -price range 200 / 250 k Euro -Perkins 50HP same as maramu -some sloop made. Not very popular. Super maramu -similar to Santorin but larger (53) and 1.5 time the space. (no sloop) in addition: -U shaped galley -washer/dryer + dishwasher -from 89 to 98 -Perkins 68 to 80HP -price range 280 / 350 k Euro Super Maramu 2000 -improvement to SM. -99 to 2005 (almost 400 made) -Perkins 80 to 100HP -price range 350 to +++ k Euro Condition and options (many available) will make the price. They are all great boats. I only know happy owners. Amel is a very serious company. This is very uncomplete, but it should help for a start. All depend what you are looking for, and how much you want to spend. For info, I presently know an excellent Santorin for sale (French flag VAT paid). sincerely Georges Pellegrini [Non-text portions of this message have been removed]
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Re: SuperMaramu vs Maramu vs Santorin.
abulerhum <dji314@...>
--- In amelyachtowners@yahoogroups.com, "uno.genesis" <uno.genesis@...> wrote:
I will sumarize quickly, so it will be very uncomplete. Maramu and Santorin are of the same size (46 ft), Super maramu is 53ft. There are many difference between Maramu and Santorin. main differences are: Maramu: -line shaft -3 manual rolling sails -made until 89 -price range 100 / 150k Euro Santorin -Amel type transmission (C) -Genoa and main electric furling. Artimon manual -from 89 to 97 (140 made) -improved hull -winged ballast -price range 200 / 250 k Euro -Perkins 50HP same as maramu -some sloop made. Not very popular. Super maramu -similar to Santorin but larger (53) and 1.5 time the space. (no sloop) in addition: -U shaped galley -washer/dryer + dishwasher -from 89 to 98 -Perkins 68 to 80HP -price range 280 / 350 k Euro Super Maramu 2000 -improvement to SM. -99 to 2005 (almost 400 made) -Perkins 80 to 100HP -price range 350 to +++ k Euro Condition and options (many available) will make the price. They are all great boats. I only know happy owners. Amel is a very serious company. This is very uncomplete, but it should help for a start. All depend what you are looking for, and how much you want to spend. For info, I presently know an excellent Santorin for sale (French flag VAT paid). sincerely Georges Pellegrini
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SuperMaramu vs Maramu vs Santorin.
uno.genesis <uno.genesis@...>
I am planning to buy an Amel, and I wonder if some one could tell
me what are the main differences on Supermaramu, Maramu and Santorin considering 45'and ketch rigging. The pros and cons. Thaks in advance
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My Water Maker Alarm Control Panel & Blue Seas Multimeter
amelliahona <no_reply@...>
Hello everyone:
I just posted a picture in the watermaker folder showing the control panel I built for my EC sensor with a 110 decibel sonalert, mute/arm switch with LED indicating power on and alarm condition. I currently have the EC alarm limit set at 500 microSiemens/cm. Any salinity more than that will alarm. The alarm sounds at each start up for about 2-4 minutes (depending on how long the system has been shut down), so I mute the alarm until salinity is below 500 and the alarm silences, then I place the switch in the up position (what I call the arm position) so that any future alarms during production of water will instantly sound the sonalert. I really like the Blue Seas Multimeter. It was easy to install and very accurate. I installed it on the incoming line so that if I have a concern about the power I can leave all ciruits off while I verify that I have correct power attached. You can select hertz/watts/amps/ voltage. It is amazing how low the voltage is on some docks. The picture posted shows only the Dessalator watermaker running at pressure and consuming 2560 watts of energy. I can supply a schematic of my installation for anyone interested. Gary Amel SM 2000 Hull # 335
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Watermaker TDS and RIB
John and Anne on Bali Hai <hollamby@...>
Dear Ian and Judy,
My watermaker has done about 255 hours. We use it for all our onboard water. I bought the DM1 model TDS and now I wish I had the DM2 as it never occurred to me that the screen on the DM1 would be so tiny that it very hard to see the x10 reading flashing when the machine is turned on.You will need the one to fit 3/8 ths inch tubing if you have the 160 ltr ph model. Incidentally if you are about to order the RIB ask them to fit an extra handle either side in front of the thwart so peole sitting forward have something to hold on to. They did this for me ,no charge. Good luck, Anne and John SM319
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Re: [Amel Yacht Owners] Water Maker
ianjenkins1946 <ianjudyjenkins@hotmail.com>
Hi Gary, I have just printed some of your very useful photos on changing the membranes. Is yours a 60lph or 160 lph system? How many hours did you get out of your membranes before you renewed them? Cheers, Ian Jenkins SM 302
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Re: [Amel Yacht Owners] watermaker,TDS meter
ianjenkins1946 <ianjudyjenkins@hotmail.com>
Dear John and Anne, Thanks for another good tip.We are in Blighty for the summer so have promptly been online to ro-man.Their prices look good, tho I'm not sure of they sell the membranes we would like to carry as spares.
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Incidentally, how many hours have you on your watermaker? Fair winds, Ian and Judy, SM 302.
From: "John and Anne on Bali Hai" <hollamby@compuserve.com>
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Re: [Amel Yacht Owners] ais "RADAR"
Horst Pause <horst@...>
Available from Compass24.com at £206.96 inc. VAT - ref 113430
________________________________ From: amelyachtowners@yahoogroups.com [mailto:amelyachtowners@yahoogroups.com] On Behalf Of eric Sent: 12 June 2006 03:07 To: amelyachtowners@yahoogroups.com; tartansailing@yahoogroups.com Subject: [Amel Yacht Owners] ais "RADAR" Hi, I just finished installing this AIS "radar" unit on my boat and it works great. It only took 2 hours to install. I believe it is a very worthwhile investment Fair Winds, Eric Amel Super Maramu #376 Kimberlite http://www.allgadgets.co.uk/ag/product.asp?pf%5Fid=AG3928 <http://www.allgadgets.co.uk/ag/product.asp?pf%5Fid=AG3928> <http://www.allgadgets.co.uk/ag/product.asp?pf%5Fid=AG3928&;dept%5Fid=7 <http://www.allgadgets.co.uk/ag/product.asp?pf%5Fid=AG3928&;dept%5Fid=7> > &dept%5Fid=7 [Non-text portions of this message have been removed]
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ais "RADAR"
eric freedman
Hi,
I just finished installing this AIS "radar" unit on my boat and it works great. It only took 2 hours to install. I believe it is a very worthwhile investment Fair Winds, Eric Amel Super Maramu #376 Kimberlite http://www.allgadgets.co.uk/ag/product.asp?pf%5Fid=AG3928 <http://www.allgadgets.co.uk/ag/product.asp?pf%5Fid=AG3928&;dept%5Fid=7> &dept%5Fid=7
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Water Maker Power Draw & Motor Fire
amelliahona <no_reply@...>
Dear Yves:
Thank you for being the first to bring to our attention the problems associated with the salinity sensor on the Dessalator water maker. Your post about the motor fire doesn't specify if this was the high pressure pump motor or the low pressure pump motor that burned. Can you please clarify? Was there any wire charring? As you can see from my previous post, based on my measurements last week, a 20 amp circuit breaker is adequate for the entire system to operate at pressure. Additionally each pump is individually protected by a circuit breaker. The high pressure pump has a 25 amp circuit breaker and the low pressure pump has a 5 amp circuit breaker (see photo section for water maker electrical box component labels). It doesn't quite make sense to have a total system CB of 20 amps and an individual motor CB of 25 amps. Regards, Gary Silver s/v Liahona Amel SM 2000 Hull 3 335 in the amelyachtowners@yahoogroups.comnearly had fire in by boat. The 220 V. motor, having no electrical protection, burned.contemplating to replace it by a bigger one; I would suggest not to do that. If a breaker trips it is probably because the motor is faulty and takes too much power when starting or blocking. It is a good thing that it tripped; mine didn't. Anyway the breaker in the switchboard is there to protect the line / cable and not the motor which should have, like all other appliances (charger, air conditioning, fans…), a specific protection adapted to its way of working. DESSALATOR water makers have none. Be careful !!
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Water Maker Salinity Sensor is Not Hooked up to Anything
amelliahona <no_reply@...>
I have spent more than 40 hours drawing complete schematics and logic diagrams for the
Dessalator water maker Control Board on my Amel SM 2000 , Hull # 335. I have verified that the salinity sensor is wired to the circuit board on pin 11 and pin 12 of plug # 2 (see the photo section for a component labeled photo of this board). I HAVE VERIFIED THAT PIN 11 OF THIS BOARD IS NOT CONNECTED TO ANYTHING. PIN 12 GOES TO GROUND BUT THE SALINITY SENSOR THUS CONNECTED IS AN INCOMPLETE CIRCUIT AND IS NOT FUNCTIONAL. FURTHERMORE, AS CURRENTLY CONFIGURED I CAN NOT DETERMINE ANY WAY TO MAKE THE SALINITY SENSOR SYSTEM FUNCTIONAL. I CAN ONLY CONCLUDE THAT THE SALINITY SENSOR ON MY WATERMAKER IS A SHAM INSTALLATION. I URGE EVERY AMEL OWNER TO INSPECT THEIR DESSALATOR WATERMAKER CIRCUIT BOARD. IF YOUR CIRCUIT BOARD IS THE SAME ONE AS DEPICTED IN THE PHOTO SECTION AND THE SALINITY SENSOR IS WIRED TO PLUG 2, PINS 11 AND 12 THEN YOU CAN BE ASSURED THAT THE SALINITY SENSOR IS NOT FUNCTIONAL IN ANY WAY. Another way to determine if your salinity sensor is functional is to see if your system changes to "good quality" and green LED light at the 55 second to 65 second mark. If it does then the salinity sensor is NOT functional. The timing function of the control board determines the start up sequence and does function for high pressure (overpressure) shut down of the system. No other sensing inputs to the board are functional. It takes about 3 to 4 minutes for the TDS creep to come down to good quality water after system start up. This brief period of bad water production is of no consequence when compared to the major volume of water production that follows. I urge all owners to install a continuous EC (electrical conductivity) monitor with alarm funciton on the product water line of their water maker. If you do this you will soon find that the high EC alarm will sound for the first 3 - 4 minutes after startup I have installed a mute switch in the alarm relay line so that I can monitor the start up sequence with the the alarm muted and when the EC drops to 450 microSiemens/cm (about 500 ppm TDS) I can "arm" the alarm by throwing the switch to allow the alarm to sound the second EC goes over 500 mSiemens/cm. Dessalator and the Dessalator UK rep have intimated that Amel made this type of installation. But since the wiring inside the electrical box was undoubtedly made by Dessalator and not Amel, and Amel has represented all along that the salinity sensor system was functional, I believe this sham installation was unknown to Amel. The integrity with which Amel has always conducted itself leads me to believe that this fraud was NOT perpetrated by Amel. I don't fault Rod Boreham, the UK representative for Dessalator, as he was just passing along what Dessalator was telling him. You now know the truth about the salinity sensor on our Dessalator water maker. Your opposing opinions are welcome. I would like nothing more than to be proven wrong on this issue. Regards, Gary Silver s/v Liahona (currently on the hard in Jolly Harbor Antiqua) Hull #335
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Bowthruster
ivarmylde <mylde@...>
Hi,
Can anybody help me. I hve had mooring rope in the thruster due too short mooring rope. Now cannot get bowthruster fully up ca 1,5 cm left. Not sure if get it fully down, but when I dive can move the propeller freely, but when I push button for right and left nothing happens. When I push down there is no beep sound - when take it up there is sound. I take it thruster is slightly out of normal position Is there a circut breaker for the propeller ? since the propeller dont work or is it because the thruster is slightly out of position. Now cruising northern Sicily, Italy. I can go to Trapani in a couple of days. If anybody hve a good solution pls cpy my satelit mail: silfrania@skyfile.com Thks v.m. Rgds Ivar Mylde 53 Silfrania
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Water Maker Power Draw
amelliahona <no_reply@...>
9 June 2006
REGARDING POWER DRAW OF DESSALATOR 160 l/hr WATER MAKER I have verified that the power consumptions on my Dessalator Water Maker on my hull # 335 Amel SM 2000 are as follows: 1. Control Circuity on with only the Low Pressure Pump Running = 2 amps = 430 watts 2. Control Circuity on plus Low Pressure Pump Running and High Pressure Pump running under no load (i.e. the pressure not dialed up) = 13.5 amps = 1390 watts 3. Same as #2 above but running at operating pressure making 160 l/hr = 14.4 amps = 2550 watts My 20 amp circuit breaker would randomly trip while running with these loads. I ordered a new 20 amp breaker and a 25 amp breaker from Amel, (33 Euro and 48 Euro respectively). I installed the 20 amp breaker and haven't had any trips in about 15 hours of operation. It appears to me that a properly working 20 amp breaker sholuld be adequate for this installation. If your water maker is tripping its 20 amp breaker I recommend using a clamp amp meter to measure the current draw and if it is close to the values listed above then I suspect a "weak" circuit breaker. Regards. Gary Silver
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Re: Motor on fuler for the Main Sail
amelliahona <no_reply@...>
--- In amelyachtowners@yahoogroups.com, Linda DeSalvo <liebling207@...> wrote:
James:The shaft on the main sail furling motor on our SM 2000 fractured in such a way that the shaft remained partially engaged and would work while making a lot of noise. I originally thought that the gear box was contaminated and the gears were making the noise but in the process of disassembly we found the fractured shaft of the motor. This could be the cause of the noise you are hearing. I would lower the motor-gear box assembly and see if you can identify the source. Amel supplied a new motor $US 606.00 in Nov 2004. It took about 3 hours of labor for repaiirs. Regards, Gary Silver The motor on furler on the main sail is making a lot of noise. Is there anyone out therethat has had this problem and what did you do about it. Thanks James DeSalvo Liebling207
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watermaker,TDS meter
John and Anne on Bali Hai <hollamby@...>
There seems to be no doubt that the dessalateur salinity detector is
non functioning.A cheap and easy solution is to fit a simple TDS meter in the output line.Such a meter is sold by an American company tdsmeter.com and also sold in the UK ro-man.com for £23.50. It is very small and has two sensors. I did not use the "in" sensor and put the "out" sensor in the blue output line which can be found behind the wooden cover at the front ot the big cockpit locker. This blue pipe is easily cut with a razor knife and the ends pushed in as far as they will go into the sensor. The wires from the sensors are connected to the meter with a plug which is quite hard to pull out. Once removed the plug can be pushed through the small gap created by removing the screws holding the panel in place in the galley. The meter is held in place with velcro. The actual meter is only 3x2x0.75 inches with a very small screen.It is powered by two button cells and stays on for about 20-30 seconds when the on button is pushed. It does not have an alarm. It is sold either with fittings for a small or a larger tube which is needed for my 160ltr ph watermaker.Make sure that the tubes are pushed fully in and the do a freshwater flush of the membranes to make sure there are no leaks before replacing the coverboard. I used it yesterday for the first time and got an initial reading of over 9,000 ppm which soon went down to about 360ppm which is better than Maltese mains water. Incidentally I have followed Olivier's advice and never sterilised or pickled the membranes which are still delivering 160 ltr. ph. even though the machine stands idle for about five months a year. We do however always flush it with product water after use if it is going to stand idle for more than a few days. We never take on shore water and rely totally on this machine. With the benefit of hind sight I should have put both sensors in the product out line ! Best wishes to all, Anne and John, SM 319
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