I just spoke with a Dessalator dealer up in New England about winterizing the watermaker, and they said all they do, is run potable, pink antifreeze through the watermakers and its good for several months. They do not use the chemicals because its " bad stuff". I have been using it for years in the water systems and it leaves an unpleasant taste/odor and requires massive flushing in the spring to rid the system of odor and bad taste.
nbsp; Shenanigans Sassafras River Md.
From: Bill & Judy Rouse <yahoogroups@...
To: amelyachtowners <amelyachtowners@...
Sent: Thu, Nov 7, 2013 7:43 am
Subject: Re: [Amel] RE: Pickling watermaker
I know little about prepping for a winter freeze, but I would think that the small amount of Sodium Metabisulfite used with fresh water would not keep the solution from freezing.
This is what Dessalator says:
How to winterize your watermaker:
Several solutions are possible:
If someone regularly comes on board, rinsing with the three-way valve on the pre pump will be sufficient; this should be carried out while the watermaker is idle.
- For extended periods (5 to 6 months) of storage, we have developed a sterilizing cartridge (see the page sterilizing cartridge).
- FREEZING CONDITIONS: If the boat stays in a very cold region, please take a bucket containing 8 litres of warm fresh water mixed with one glycerine litre (you will find it in a drugstore) and let the seawater inlet hose suck up the mixture by starting the watermaker without pressure. You should then empty the flow meter tube on the control panel by blowing into the blue hose connected to the membranes. In normal winter conditions, only empty the flow meter tube and use the sterilizing cartridge ST2.
I bought a 24 volt timer and a 24 volt valve that I plan to install to rinse the membranes when I am away for longer than 1 month.
Other than that, I am not able to help.