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  1. #1
    Big Traveler Keebler's Avatar
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    Winterizing and Water Check Valve

    I've seen this posted here before, but wanted to discuss this again, as this is the time of year many are winterizing.

    After draining all of the water from my low point drains and hot water heater, I proceeded to winterize my RV.

    I set all of the levers on my Nautilus panel to WINTERIZE mode, connected my short hose to the fill port, with the other end into my antifreeze container.

    I turned on the outdoor spray nozzle handle, could hear the pump working, but no spray from the hose. For some reason, the siphon would not start. Fortunately, a fellow camper suggested checking the water check valve. So I removed the short hose, pulled the screen, and simply pushed the valve to feel it opening and closing.

    Reconnected the hose and tried again; the pink stuff immediately started spraying.

    Super easy fix... if you know about it.

    Just posting this as a reminder for anyone that has the same frustration.
    2017 Ford F350 Platinum 6.7L PowerStroke DRW
    2017 Solitude 379FLS

  2. #2
    Long Hauler
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    Per Grand Design, you don't want to push that valve if there is pressure in the system. Just a FWIW.
    Howard and Peggy
    2019 Momentum 351M, and 2018 RAM Cummins dually 6-speed.
    His: 1999 Honda Interceptor
    Hers: 2013 Spyder ST-S

  3. #3
    Big Traveler Keebler's Avatar
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    Quote Originally Posted by Hoopy Frood View Post
    Per Grand Design, you don't want to push that valve if there is pressure in the system. Just a FWIW.
    Thanks for the precaution. Is it safe to say that with no city water connected, pump off, and the outdoor spray nozzle open (or what ever faucet you are using); the system would be safely depressurized?
    2017 Ford F350 Platinum 6.7L PowerStroke DRW
    2017 Solitude 379FLS

  4. #4
    Site Team Ynot4me2's Avatar
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    Quote Originally Posted by Keebler View Post
    Thanks for the precaution. Is it safe to say that with no city water connected, pump off, and the outdoor spray nozzle open (or what ever faucet you are using); the system would be safely depressurized?
    That's correct.
    Steph & Lise
    2019 F150 Lariat 2.7 EB
    2020 Imagine XLS 22MLE

  5. #5
    Site Team Soundsailor's Avatar
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    Quote Originally Posted by Keebler View Post
    I've seen this posted here before, but wanted to discuss this again, as this is the time of year many are winterizing.

    After draining all of the water from my low point drains and hot water heater, I proceeded to winterize my RV.

    I set all of the levers on my Nautilus panel to WINTERIZE mode, connected my short hose to the fill port, with the other end into my antifreeze container.

    I turned on the outdoor spray nozzle handle, could hear the pump working, but no spray from the hose. For some reason, the siphon would not start.
    Interesting, I just finished my winterizing and had no trouble getting the pink stuff to pump. Maybe it was because I'd just blown out the lines using the city water inlet. That may have had a similar effect to manually manipulating the check valve.
    Stephen and Judy
    2022 Reflection 150 Series 260RD (Stella)
    2017 Chevy Silverado 2500 HD (Blue)
    Traded - 2018 Forest River Rockwood Minilite 2104S

  6. #6
    Big Traveler Keebler's Avatar
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    Quote Originally Posted by Soundsailor View Post
    Interesting, I just finished my winterizing and had no trouble getting the pink stuff to pump. Maybe it was because I'd just blown out the lines using the city water inlet. That may have had a similar effect to manually manipulating the check valve.
    I've never had an issue in the past. May be a coincidence, but I did notice that my replaceable cartridge water filter (this is after the fill connection and check valve) was quite dirty; as was the screen in front of the check valve. So, I suspect this may have been part of my issue. I thought I didn't need those water filters that sit outside, because I have this really nice cartridge filter built in. Yes, I will start using the out side filter that will be in front of the camper's water connection and the check valve.
    2017 Ford F350 Platinum 6.7L PowerStroke DRW
    2017 Solitude 379FLS

  7. #7
    Rolling Along
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    Quote Originally Posted by Hoopy Frood View Post
    Per Grand Design, you don't want to push that valve if there is pressure in the system. Just a FWIW.
    BTDT. You don't get that wet..lol
    2023 Chevy 3500HD CC SB 4x4 Dmax
    2021 GD 320G with 8K axles

  8. #8
    Long Hauler
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    Quote Originally Posted by Wileykid View Post
    BTDT. You don't get that wet..lol
    It's not the wet they're concerned with, supposedly, and I have read agreement, it can cause damage to the system. I don't know what, but that's what I've read.
    Howard and Peggy
    2019 Momentum 351M, and 2018 RAM Cummins dually 6-speed.
    His: 1999 Honda Interceptor
    Hers: 2013 Spyder ST-S

  9. #9
    Site Sponsor
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    Quote Originally Posted by Hoopy Frood View Post
    It's not the wet they're concerned with, supposedly, and I have read agreement, it can cause damage to the system. I don't know what, but that's what I've read.
    It can blow out an O ring/seal. Very easy to lose it/not notice it missing. Then it will not seal.

    Chris
    Chris & Karen
    Fort Collins, CO
    2017 F-350 SRW 6.7 Lariat Value CC LB 4x4
    2018 Solitude 310GK - Sold 7/2023

  10. #10
    Big Traveler Keebler's Avatar
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    Has me thinking that this may be an item worth adding to the spare parts bin. For $18, i'd be really glad to have it on hand. https://www.amazon.com/RecPro-Camper...95&sr=8-4&th=1
    2017 Ford F350 Platinum 6.7L PowerStroke DRW
    2017 Solitude 379FLS

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