Forum Discussion

JFHenne's avatar
JFHenne
Explorer
Oct 15, 2013

Jayco Kiwi water system

I am perplexed by my Kiwi 24B water system. The city water (pressurized) inlet is connected directly to the inlet side of the pump (Shurflo.) The outlet goes to a tee one side of which goes to a tube venting to the air beneath and the other through the floor and into the fresh water holding tank at the bottom center. Both sides of this tee have valves, the one to the vent is closed. How the heck can this work?

As it appears the pump pressurizes the water tank, but that cannot then provide water to the system as that tank is vented. Pressure would simply pump water out the vent to the ground.

Trouble is the system works fine! Can anyone tell me what I am not understanding here?
  • JFHenne's avatar
    JFHenne
    Explorer
    Oct 16, 2013
    Thanks everyone. There must be a tee just inside the outer skin that I cannot see. It appears that the city water connection goes uninterrupted to the pump, but clearly that cannot be.

    Sure wish the manufacturers provided more information. Plumbing and wiring are a mystery in these things and the literature that come with them is not much help.
  • Padlin's avatar
    Padlin
    Explorer
    Oct 16, 2013
    Don't know if you realized it or not, but when using city water the pump and fresh water tank are not used. The city water pressure pushes the water thru the system, you use an external pressure regulator to insure the city water pressure not too great for the trailers plumbing.
    When you have no city feed, you fill the fresh water tank and turn on the pump to pressurize the system. On mine I have to open a faucet till the air works it's way out.
  • Chuck_S's avatar
    Chuck_S
    Explorer
    Oct 16, 2013
    The diagram looks like both campers I've owned. City water connects to the outlet side of the pump.

    Note antifreeze should NEVER be put in the freshwater tank. Dilutes the antifreeze and makes your water taste pink for months next season. Same for the water heater. Bypass and drain it.

    -- Chuck
  • Old-Biscuit's avatar
    Old-Biscuit
    Explorer III
    Oct 16, 2013
    The pump discharge and the 'city water' connection feed the same cold water plumbing lines....which tee's off and feeds cold inlet to hot water heater which then feeds hot water out to hot water plumbing lines

  • PAThwacker's avatar
    PAThwacker
    Explorer
    Oct 16, 2013
    Hmm, can you snap and post a picture? Ours has the pigtail out winterize hose connected on the inlet side of the pump. Turn tank valve off, pigtail on, and it empties 2 jugs of antifreeze through out the system. Well not that much, but I use 2 jugs total. Majority of it goes into the low point drains, toilet, and tanks. The city water line is directly from the side of the unit and has nothing to do with the tank, or pump. I winterize that by blowing it out, and filling a hose with antifreeze and then pressurize it with the air compressor.
  • JFHenne's avatar
    JFHenne
    Explorer
    Oct 16, 2013
    If the city water is tied to the discharge side of the pump then how does the water get into the system? There is only one hose and that goes directly to the input on the outside of the trailer.

    It must, I guess, but where?
  • RandK-M's avatar
    RandK-M
    Explorer
    Oct 16, 2013
    Old-Biscuit is correct. The extra tube that isn't connected to anything on the one end is to stick into a jug of antifreeze for winterizing. It will draw from the antifreeze jug instead of the tank to pump the antifreeze through the system.

    Ray
  • Old-Biscuit's avatar
    Old-Biscuit
    Explorer III
    Oct 15, 2013
    I think you are looking at it backwards

    City water ties into pump DISCHARGE

    The 'T' is on suction side line
    One side of 'T' goes into fresh water tank (pump suction)
    The other side of 'T' is used to 'winterize' (Close valve on fresh water suction line and open valve on other line which is inserted into a bottle of anti-freeze)
    Turn pump on...anti-freeze is sucked out of bottle and pumped thru plumbing system

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