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How to empty waterheater

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samuel View Drop Down
Admiral of the Fleet
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Joined: 26 December 2004
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Post Options Post Options   Thanks (0) Thanks(0)   Quote samuel Quote  Post ReplyReply Direct Link To This Post Posted: 09 December 2017 at 08:27
Use an antifreeze for drinking water. Drain off the water from the tank. Add some antifreeze/water mix to the tank. Drain that off so it goes through the system. Drain as much as possible including disconnecting the calorifier hose & draining there; although you do not really have to bother going that far.
Then any water remaining in pipe bends etc should be Ok.
Do not forget to disconnect the deck shower as this will have water in the hose & shower head & being at the stern by the transom will be the area most likely to freeze first
At the start of the season flush well through & re fill

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ELSAN ANTI-FREEZE ANTI-GEL FOR MOTORHOME & CARAVAN WATER SYSTEMS


There are others but the main thing is to get it into pipe bends where any trapped water will expand & burst the joints



Edited by samuel - 09 December 2017 at 08:36
Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex
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Martin&Rene View Drop Down
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Joined: 06 December 2009
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Martin&Rene Quote  Post ReplyReply Direct Link To This Post Posted: 09 December 2017 at 15:35
Samuel is right about the stern shower.  Once the yacht is out of the water, I let the shower head hang down as far as possible and fasten it open to let it drain.   Having had a shower head fail because of ice and it started to pour water into the bilge, I installed a quarter turn valve on the inner wall of the transom at the start of the flexible hose.
Martin&Rene Hanse 341 Dipper Wheel steering, 3 cabin layout & shallow keel, normally based in Scotland
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samuel View Drop Down
Admiral of the Fleet
Admiral of the Fleet


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Post Options Post Options   Thanks (0) Thanks(0)   Quote samuel Quote  Post ReplyReply Direct Link To This Post Posted: 09 December 2017 at 16:40
I have a valve before the shower because once it fell into the bottom of the locker & jammed open thus emptying a lot of fresh water into the bilge before I knew it. This also allows me to remove the entire fitting & hose at the end of the season.
Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex
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