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Hot water for aft shower

Discussion of AC's, plumbing and sanitation related issues.
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Scurvy Dog
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Joined: January 25th, 2014, 4:39 pm
Vessel Info: 1990 Carver 3608

Hot water for aft shower

Postby NTL » January 25th, 2014, 4:44 pm


I have a 1990 3608 ACMY and when I am using city water hook up at the dock I have hot water for the aft shower but when out on the water and I am using the water pressure pump I have hot water in all other faucets except for the aft shower. I am assuming it is a check valve somewhere but I am unable to locate it. Does anyone have any ideas or thoughts? Thank you in advance for your help!

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1987 3697 Carver Mariner
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Re: Hot water for aft shower

Postby waybomb » January 26th, 2014, 1:36 pm

Usually, there is only set of isolation valve(s). Where the shore water tees into the house water pressure line. Should not affect getting hot water to the aft shower. If you have shore water anywhere, you should have it everywhere. Likewise with house water.

Possibly the filter is slightly clogged and the aft shower is the farthest from the pump, thus not getting the water? Or the pressure pump needs a rebuld? It is really a simple thing to do. The standard "filter", more like a strainer bowl, is usually mounted close to the pressure pump. It's a little thing, clear plastic.

After turning off the water, unsrew it and clean it. If that wasn't it, you should be able to take out the pump and rebuild it fairly cheaply and easily. Just get the model number and buy a kit.
1969 Glaspar Avalon /1969 Johnson Electromatic 85
1987 Carver Mariner
1988 Cougar Kevlar 46' with triple blown 572 ci
1995 Boston Whaler Rage
Past - 1988 2807, 1989 4207 Aft
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Scurvy Dog
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Re: Hot water for aft shower

Postby uaesi » February 5th, 2014, 1:04 pm

That sounds really odd, how long have you owned this ship? I owned a 3608 for 13 years and never saw this. I'd first start at the hot water tank and back check the lines to see if for some reason thru the years someone spliced and "custom fit" the hot water system. As waybomb noted the shorewater check valve is in the main line coming in (somewhere) and should not affect this.

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