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  1. #21
    Fireside Member
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    Equalizing tanks

    Quote Originally Posted by WhittleBurner View Post
    If you have 2 grey water tanks putting on the valve could turn your 2 grey water tanks into 1. If you leave the valterra valve and black water valve closed but the 2 grey tank valves open they will equalize making them 1 tank. I don't know about you but we will fill one grey tank way before the other one. Turning them into one tank allows you to go a lot longer before you have to empty them.
    That is a really good idea.

  2. #22
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    Quote Originally Posted by Cchapin100 View Post
    That is a really good idea.

    I have used the valterra for years
    It also serves for a great back flush using the gray water to unblock a blockage in the black tank

  3. #23
    Site Sponsor livinthelife's Avatar
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    Quote Originally Posted by WhittleBurner View Post
    If you have 2 grey water tanks putting on the valve could turn your 2 grey water tanks into 1. If you leave the valterra valve and black water valve closed but the 2 grey tank valves open they will equalize making them 1 tank. I don't know about you but we will fill one grey tank way before the other one. Turning them into one tank allows you to go a lot longer before you have to empty them.
    I believe not all RVs have the 2 grey tanks on the same level. That would mean that one would fill up before the other, and, maybe, could cause more pressure in the lower tank.

    2017 Reflection 26RL "Mili"
    2016 Ford F250 Extended Cab Gas Engine "Buck" (the truck)

  4. #24
    Site Team WhittleBurner's Avatar
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    I would think the only GD trailers that might be that way would be the Solitude and the Momentum because of the drop down frames. The tanks sit on the frame of the trailer so other than those two it should work.
    Marcy & Gary
    2014 Grand Design - Reflection 303RLS
    2022 GMC 3500 Denali Duramax Longbed SRW
    2015 GMC Denali 3500 - Retired
    2003 F350 - retired
    Michigan
    We're in trouble now, the dog are bloggin'!
    https://3dogsandatrailer.wordpress.com/


  5. #25
    Setting Up Camp
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    Lowest price on Valterra T58 valve I could find

    Quote Originally Posted by Grandesigner View Post
    Seems a bit pricey...is that the only one on the market?
    Ours does this also...
    S&H is $11.04 but still the lowest price I could find. Several in stock. A lot places including amazon are out.

    https://www.calranch.com/twist-on-wa...lack-1-lb.html

  6. #26
    Site Sponsor Steve & Katey's Avatar
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    I stopped at the local Gander RV and found two of these valves for $29.99 regular price. Due to this thread I bought both, one for our 337RLS and one to have as a spare.

    Gander RV had a similar Valterra valve but with an added wash out connection for a garden hose for ~$60 as well.
    Steve & Katey
    Full time since 07/01/2022
    2020 Ford F-350 DRW (5361 payload)
    2024 Solitude 390RK (FBP and Morryde IS from factory)
    2018 Reflection 337RLS (Still got it!)


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