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Mddg2020's avatar
Mddg2020
Explorer
Dec 28, 2017

Hot Water Heaters

Hello folks, I'm new to the website so please bare with me... I've got a lot air trapped in my hot and cold water lines in my La Crosse travel trailer and nothing I've done so far has eliminated or diminished it any way. What I've read so far in these open forums is that it could be caused by a small leak in the inlet hose to the water pump, but I don't ever use the pump (I believe) because I always hookup directly to the city water supply line where ever I land. I guess the same problem is possible with a small leak in the city water supply line feeding pressurized water to the hot water heater, rather than the pressurized water coming out of the fresh water pump/tank.

Has anybody experienced a problem like this? If yes, what did you do to help find and fix this problem?

Thank you in advance...
Barry

13 Replies

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  • Rover_Bill's avatar
    Rover_Bill
    Explorer II
    Dec 28, 2017
    Just guessing at this but if the city-line water pressure (or flow rate) is too low and you have your water pump turned on then the pump will draw air into your pressurized water lines from your empty tank. I would put about 10 gallons of fresh water into the tank and disconnect the city-line. If the problem isn't resolved, you can just empty the tank.
  • Boband4's avatar
    Boband4
    Explorer
    Dec 28, 2017
    What symptoms are you seeing to say you have air in the line? I get some sputtering the first time I use the water system, but it goes away quickly (within a few seconds) and doesnt happen again until I either have an empty tank or disconnect from the city water.

    Also, remember, you are supposed to have air in the hot water tank to allow for expansion. Even with that air in the hot water tank, I get very little sputtering once the system is running.

    What are you experiencing?

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