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Thread: Plumbing slope ball test - GIF

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    Plumbing slope ball test - GIF

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    Supporting Member Frank S's Avatar
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    Whenever possible avoid 90° bends in the soil line I counted 4 90s a 37.5 and a 45 a total of 432.5° of bends plus the initial vertical to horizontal transition. The system could have been made using 45s where the 90s were by cutting just a little more concrete. Reducing the total degree if bend count by 180° Good plumbing practice whether drain and waste or potable water the fewer bends the better. I like to associate it with running electrical conduit. Which allows a maximum of 360°s worth of bends in any run of conduit.
    Never try to tell me it can't be done
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    albertq (Jul 15, 2025), emu roo (Jul 15, 2025), hemmjo (Jul 15, 2025)

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    Supporting Member IntheGroove's Avatar
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    Plumbers Code: **it flows down hill and payday is on Friday...

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    emu roo (Jul 15, 2025)

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    Supporting Member Floradawg's Avatar
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    If it failed the test it would be a real pain to fix it.
    Stupid is forever, ignorance can be fixed.

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    emu roo (Jul 15, 2025)

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    Supporting Member Philip Davies's Avatar
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    I thought the plumber could time it, to calculate the mean degree of incline!

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    kbars121321 (Jul 20, 2025)

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    7 90 degrees you might as well plug it

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    Supporting Member Frank S's Avatar
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    1/4" per 10ft for the soil line any less and the solids will settle in the line much steeper and the water runs away from the solids
    Never try to tell me it can't be done
    When I have to paint I use KBS products

  13. #8
    Supporting Member bob_3000's Avatar
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    Quote Originally Posted by IntheGroove View Post
    Plumbers Code: **it flows down hill and payday is on Friday...
    ....and don't lick your fingers.



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