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  1. #40
    Join Date
    Mar 2013
    Billington Heights, NY
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    About the type of joints regarding fixture traps:

    From the IPC:

    Fixture traps.

    Each plumbing fixture shall be separately trapped by a liquid-seal trap, except as otherwise permitted by this code. The vertical distance from the fixture outlet to the trap weir shall not exceed 24 inches (610 mm), and the horizontal distance shall not exceed 30 inches (610 mm) measured from the centerline of the fixture outlet to the centerline of the inlet of the trap.
    Design of traps.

    Fixture traps shall be self-scouring. Fixture traps shall not have interior partitions, except where such traps are integral with the fixture or where such traps are constructed of an approved material that is resistant to corrosion and degradation. Slip joints shall be made with an approved elastomeric gasket and shall be installed only on the trap inlet, trap outlet and within the trap seal.
    Trap seals.

    Each fixture trap shall have a liquid seal of not less than 2 inches (51 mm) and not more than 4 inches (102
    mm), or deeper for special designs relating to accessible fixtures.
    There was another one I cant reference quickly (it may have been in my NYS code book) where it said compression type fittings are prohibited after a trap. This rule would make all multi-piece p-trap assemblies illegal, yet the inspectors want them installed.

  2. #41
    Join Date
    Jul 2019
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    If your sink is blocked then its very easy to check the problem. Very first you have to check weather the sink pipe is total blocked or it half blocked and leaking from the joints. If you pipe is totally blocked just open the bottom pipe joint so if its having something here you can remove it and pour some water to free the block. Another area you need to check is the sink pipe connected with internal drainage line, some times this place gets full of vegetable wast, detergents and other fats. If it is partially blocked, you need to just pour high pressure water which may temporary solve your problem. Doing all such processes and still your sink is running slow or remain blocked then you need to call out drainage specialist.
    Last edited by Dad; 07-08-2019 at 10:15 AM.

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