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Old 01-11-2010, 03:13 PM   #1
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Location: Ontario, Canada
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adding expansion tank

I am thinking of installing an expansion tank to my water supply. Do I need a check valve to stop the pressure bleeding off, or does the pump have one built in? Any thoughts appreciated.

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Old 01-11-2010, 05:28 PM   #2
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Location: Enumclaw, WA
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The tank only need be installed somewhere after the water pump in the system. It's sort of like an air tank on a compressed air system in a way. See this diagram which may help you visualize it. There is also this page which is very good at explaining RV water systems.

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Old 01-11-2010, 06:08 PM   #3
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NWJEEPER. The water everywhere article covers everything I wondered about, and then some. It is definitely worth saving for future use. Many thanks!
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