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Thread: Any recommendations or opinions on poly pipe to use on a long haul

  1. #16
    In the Trades Texas Wellman's Avatar
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    Quote Originally Posted by ballvalve View Post
    Then you must really hate that purple primer which is even worse.
    It's the bane of my existence. LOL.

  2. #17

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    I found this info on a post here.

    I'm thinking 1.5" pipe at least.




    A standard one-bath home with kitchen sink, dishwasher, water heater, clothes-washer, 1.6 tank toilet, lavatory, tub/shower combo and two hose bibs would be counted as 18 fixture units.

    Most standard two bath homes consisting of kitchen sink, dishwasher, water heater, clothes-washer, two 1.6 tank toilet, two lavatories, one shower, one tub/shower combo, and two hose bibs would be counted as 23.5 fixture units.


    Most standard three bath homes consisting of kitchen sink, dishwasher, water heater, clothes-washer, three 1.6 tank toilet, four lavatories, two showers, one tub/shower combo, one whirlpool bath and two hose bibs would be counted as 34 fixture units.





  3. #18
    General Engineering Contractor ballvalve's Avatar
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    Here is another chart with many more options. At 17 GPM, 1.25" pipe only gives 1.9 psi loss per 100 foot.

    http://www.engineeringtoolbox.com/pe...oss-d_619.html

    If he's irrigating and has house interior sprinklers, he's into the 2" range.

    Poly and PVC are essentially the same for these calcs. But dont stick a pile of elbows in!
    Last edited by ballvalve; 07-14-2011 at 11:09 AM.

  4. #19
    Forum Admin, Expert Plumber Terry's Avatar
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    Ballvalve, always thinking of living by yourself in a one bath home.
    Most of us have family. They have needs too.

    It reminds me of a Boeing Engineer that was bragging about how small a pipe he ran from the well to the house. Like that was a good thing.

    My friend that I was plumbing a home for, another Boeing Engineer, took my advice and ran 1.5"
    He has three acres and was installing some irrigation for the huge lawn, and has three bathrooms.
    His house is about 400 feet from the street.

    He had kids, so getting everyone off for school in the morning was important.
    Last edited by Terry; 07-14-2011 at 11:17 AM.

  5. #20
    General Engineering Contractor ballvalve's Avatar
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    2" flowing 60 GPM gives less than 2 psi drop per 100' . So if he starts at 150 psi he'll have about 130 psi at the house. If that cant flush his mormon families Totos and irrigate his lawn at night when everyone is asleep, then He's got a dairy. Then I'll give him 8" ductile iron.

    Just ran 4400' of 1.25" up a mountain and the outlet is 7gpm into a 4000 gallon tank. Down feeds as uses develop. Lots of submersibles can develop 350 PSI, and PVC is good to WORK at 450PSI, in general.

    Trying to save the generally poor public and our enviroment a bit of materials.

    You guys use fixture units, but seem to forget that they alternate use unless its a day care center. I just advocate design of the feed for the proposed maximum use.

  6. #21
    Jack of all trades DonL's Avatar
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    Quote Originally Posted by Terry View Post
    Ballvalve, always thinking of living by yourself in a one bath home.
    Most of us have family. They have needs too.

    It reminds me of a Boeing Engineer that was bragging about how small a pipe he ran from the well to the house. Like that was a good thing.

    I resemble that remark.


    But ballvalve has all the girls and I do believe "1'' will work especially if the tank is at the house. 1-1/4 isn't much more money in PVC."

    Rinse them off 1 at a time, Like ballvalve does and you will be just fine.

    If the tank is at the well then I would go with 1.5" Sch 40 or a good poly.

    Rocket science only works in a Vacuum...


    Enjoy the weekend.


    DonL
    Last edited by DonL; 07-15-2011 at 11:34 AM.
    Theory only works perfect in a vacuum.

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