Question about RTO Atwood DSI-RV Water Heater-6 Gallon

1 Answer

After camping in the "wild" and having no problems, we hooked up at a campground and have VERY low flow of just the hot water.

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  • Mike Butler
    Mike Butler Jul 10, 2010

    I assume wild, (dry camping) means you used your on board pump for water pressure at that time, and pressure at hot was o.k. correct? Is it low flow at all taps? Have you tried putting some water in your potable tank, and disconnecting city water and try pump on board to see if any difference? Sorry about questions, but will help in proper answer. Let me know please. Thanks

  • l_joyce Jul 10, 2010

    We did do that & there was no difference & it was all taps. I read some more stuff on the web and one guy said it's almost always the check valve. We couldn't find it, so I had Fleetwood e-mail the plumbing plans and there it was, in the bedroom beside the hot water tank. That valve was totally blocked with deposits, East Coast hard water? All's good now.

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  • RTO Master
  • 6,674 Answers

That's where I was heading. Your city water valve (hose hook-up) is also a check valve, so if all water pressure decreases, that will be a good place to start looking, but when just on hot side, check valve is usually fitted right at back of tank on top (hot) fitting for water line.
Thanks for getting back to me, "Happy RV'ing."

Posted on Jul 10, 2010

Testimonial: "After two weeks of bathing in cold lakes and then dribbles I'm just heading for the hot shower! We HAD it get it done as I've got two weeks paid for at Acadia National Park [$20.00 a night] with no hook-ups! They do have cold showers, LOL. Thanks again for your help."

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You can determine if the tank is the problem by connecting a garden hose to the drain that is provided on most water heaters. Before doing this, be sure to shut of the electrical supply to the heater - otherwise you can damage heating elements if an electric type or waste fuel by heating an empty tank if a gas / propane fired type.

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6_29_2012_9_57_32_pm.jpg

If the tube is clogged, or there is build up, scale or debris in the supply (cold water) side of the heater, flow rates will suffer. Likewise, if there is a problem with the output of the tank, it will directly affect flow as well.

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