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water pressure vs tempature

Discussion of AC's, plumbing and sanitation related issues.
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meandean
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water pressure vs tempature

Postby meandean » May 8th, 2018, 11:21 am

I have a 350 Mariner (03) that has a fresh water problem this year(1st time ever). After filling water tank and connecting to 'street' water, I have minimal pressure or no hot water. What am I or have I done wrong this year??? :banghead:

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Re: water pressure vs tempature

Postby bud37 » May 8th, 2018, 11:49 am

Does your system work normally when you use the boat side ?....between your water tank and the 12v fresh water pump is or should be a screen, make sure it is clean and all your taps are clear and not clogged....start there....once the boat works by itself without the dockside connected, then go to the dockside water inlet ( may need a new one, common).....so lets see....good luck with it....... :beergood:
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Re: water pressure vs tempature

Postby Lyndon670 » May 8th, 2018, 4:27 pm

+1 on the screen...especially if your marina has hard water.
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Re: water pressure vs tempature

Postby mjk1040 » May 9th, 2018, 6:48 am

Hopefully there was water in the hot water tank before u turned it on, if not u burned the element out. Low pressure on the city water most likely is a bad hook up. They go bad since they are a regulator and a check valve in one. FYI u may have to modify the hook up mount do to the fact they no longer make a 3" inlet unit. Lime build up in the system is another problem. U could try pumping a gallon or two of white vinegar (or a chemical of ur choosing) in the system and let it set for awhile and see if it de-limes ur system. On board 12v water pump will not have the pressure the shore water has, so u may have to check the tank flow to the pump and out of the pump to eliminate any problems there. Good luck my friend, hope its a simple fix!
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Re: water pressure vs tempature

Postby Viper » May 9th, 2018, 7:31 am

If you can't get water out of any faucet through both the dockside water and the on board system, then it's likely the screens in the faucets need to be cleaned. Having said that, you may also have an issue with other hardware items the guys have mentioned above; fresh water pump, clogged strainer, faulty dockside inlet, etc.

Remove the screen from one of the faucets and turn on the dockside water, if you don't get anything, it's likely your dockside inlet assembly. They don't last forever and if the boat get winterized, it may not have been done properly which is a common occurrence. To check the on board system, ensure there is water in the tank and remove the inlet to the pump. You should get water coming out of the hose. If you do, hook back up, remove the outlet hose and turn the pump on. If you don't get water, it's a faulty pump. If you get water, it's either your faucet screens or mixing valves in the faucets themselves. These can be clogged with debris from the tank or dockside water supply. If you use a powdered cleansing product in the tank, this can contribute to clogging. I have found that not all the products on the market dissolve completely. For that reason I only use liquid cleansers now.

Camco makes a good product. This stuff will remove pink residue from winterizing left in your water lines that you thought you rinsed out during commissioning: https://www.amazon.com/Camco-40207-TastePURE-Cleaner-Deodorizer/dp/B000EDUTQS

Starbrite also has a product. I find it to be more expensive but I haven't found that it works any better: http://www.starbrite.com/item/aqua-clean-water-tank-flush

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