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DIY pressurized water tank update

Discussion in '3rd Gen. Tacomas (2016+)' started by daohaus, Jul 21, 2017.

  1. Jul 21, 2017 at 10:32 AM
    #1
    daohaus

    daohaus [OP] Well-Known Member

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    Last weekend I set about to make my own pressurized water tank using 4" ABS pipe. Although I was happy with it I wasn't completely satisfied with the outcome, in particular the fill port was bothering me in that it didn't seem to have a solid connection and worried that over time I would develop air leaks.

    So back to Lowe's and I picked up a "T" fitting with a 2" threaded neck. I felt that this connection would be more secure and provide more of a solid air tight fit. Plus it looks a heck of a lot better than version 1.0.

    Here is the fill port on the first iteration:
    IMG_20170716_143449.jpg
    And here is version 2.0 fill port:
    IMG_20170721_102431.jpg
    Now I'll let it set for a bit, I ordered some bed rail brackets from @Zac of all trades and some T nuts from Amazon as well as some quick fist and this will be perfect for excursions or a quick wash down after a noon bike ride at work.

    For those wondering this holds close to 3 gallons based on the calculator I found online.

    Here's the test, pumped up to 50 PSI I get a nice stream of water, now just have to setup the compressor to deliver constant 50 PSI and I'll be set.

     
    Last edited: Jul 21, 2017
  2. Jul 21, 2017 at 10:36 AM
    #2
    Bentrodder

    Bentrodder PeeRunner Fanboy

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    I need to do something like this.
     
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  3. Jul 21, 2017 at 10:36 AM
    #3
    scottalot

    scottalot X

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    Are you adding water and then pressurizing it with air?
     
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  4. Jul 21, 2017 at 10:37 AM
    #4
    daohaus

    daohaus [OP] Well-Known Member

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    Yup, fool with water then pressurize, I have a Schrader valve so a bike pump or compressor should provide enough pressure to get the water flowing
     
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  5. Jul 21, 2017 at 10:39 AM
    #5
    scottalot

    scottalot X

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    Looks like a winner - then maybe just add a shutoff vale or something and a hose - valve keeps it sealed until use and lets you adjust flow GPA when in use :thumbsup:

    I bet that water comes out hot AF once its been in the sun for a while haha - may need a separate tube that's white and a mixing valve :laugh:
     
  6. Jul 21, 2017 at 10:44 AM
    #6
    OffCamber00

    OffCamber00 Well-Known Member

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    What kind of pressures are you using? Schedule 40 PVC is not rated for pressure. I'm sure it's fine at low pressures just to get the water to flow.
     
  7. Jul 21, 2017 at 10:45 AM
    #7
    daohaus

    daohaus [OP] Well-Known Member

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    I have a house bib attached and a pressure relief valve on to of the fill cap, yeah it will definitely get hot AF lol, I like your idea of a mixing tank lol now I'm getting really involved
     
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  8. Jul 21, 2017 at 10:45 AM
    #8
    scottalot

    scottalot X

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    I'd hope he's keeping it pretty low with that in mind :popcorn:
     
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  9. Jul 21, 2017 at 10:45 AM
    #9
    scottalot

    scottalot X

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    One white pipe, one black :laugh:
     
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  10. Jul 21, 2017 at 10:46 AM
    #10
    daohaus

    daohaus [OP] Well-Known Member

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    Yeah sched 40 but I'm only running at most 40 psi nothing crazy
     
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  11. Jul 21, 2017 at 10:46 AM
    #11
    OffCamber00

    OffCamber00 Well-Known Member

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    Word.
     
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  12. Jul 21, 2017 at 10:56 AM
    #12
    Glenn_R

    Glenn_R The Unicorn Turd Gen

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    ABS and PVC schedule 40 have pressure ratings and are derated by ambient temperature and some other factors. Both are going to further weaken from exposer to the sun. As long as you use a pressure relief valve and not go crazy, <65PSI you should be fine. The materials the author is using is ABS I believe by the looks and the OP. PVC has the higher rating but is hard to find in black or dark colors at a reasonable price. Great job OP, I want to do this with 8" pipe so I can have larger capacity. How much of your capacity are you leaving for air when you fill the pipe?
     
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  13. Jul 21, 2017 at 11:07 AM
    #13
    daohaus

    daohaus [OP] Well-Known Member

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    Yup using ABS running below 40 PSI. I consulted the engineering toolbox to look up some of that info

    As for room to fill with air I'm going to play around with that. Maybe fill 2.5 gallon and the rest air. I'll play around with it.

    Man an 8" pipe would probably be good to have sit vertically in the corner of the bed since you don't need much length, is that what you were planning on doing?
     
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  14. Jul 21, 2017 at 11:16 AM
    #14
    mwc273

    mwc273 Earning my EAF sticker, one mod at a time.

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    dents an' scratches an' stuff
    I just use this to clean out my radiator...

    [​IMG]
     
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  15. Jul 21, 2017 at 11:18 AM
    #15
    Glenn_R

    Glenn_R The Unicorn Turd Gen

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    I will mount it on my rack at 5' of schedule 40 PVC would have about 10 gallons and 3 gallons of air. This should be plenty to serve my hot water needs for 1 week and would need 1 65PSI charge to empty.
     
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  16. Jul 21, 2017 at 11:32 AM
    #16
    Qwack

    Qwack Well-Known Member

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    good idea. i was thinking along the same lines. except i thought wouldn't it be great
    if you had some 4'' dia nerf bars, one filled with water and other filled with air?
    would come in handy and would be dual purpose.
     
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  17. Jul 21, 2017 at 12:49 PM
    #17
    daohaus

    daohaus [OP] Well-Known Member

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    Edited original post with video
     
  18. Sep 12, 2017 at 9:07 AM
    #18
    Bastek

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    Great idea that I want to copy from you. Lol. Would you happen to have a photo of it installed in your truck?
     
  19. Sep 12, 2017 at 9:34 AM
    #19
    daohaus

    daohaus [OP] Well-Known Member

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  20. Sep 12, 2017 at 9:35 AM
    #20
    Sagebrush

    Sagebrush Well-Known Member

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    I applaud your project. If I had a bed rack, I'd build one.

    Here's my solar-powered shower. It's just a metal weed sprayer with a 5' piece of 3/8" hose and brass fittings for the nozzle. Works well.

    [​IMG]
     
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