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  1. #1
    Join Date
    May 2009
    Location
    New Jersey
    Posts
    90

    Default Need a little help

    I don't know what to say about this installation. Plastic drain is for a dehumidifier. The pipe has been installed on the street side of the U trap with a check valve. If the trap dries out does the check valve provide enough of a seal to prevent sewer gases from entering the home?

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  2. #2
    Join Date
    Aug 2007
    Location
    Memphis TN.
    Posts
    4,311

    Default Re: Need a little help

    Quote Originally Posted by Richard Roshak View Post
    I don't know what to say about this installation. Plastic drain is for a dehumidifier. The pipe has been installed on the street side of the U trap with a check valve. If the trap dries out does the check valve provide enough of a seal to prevent sewer gases from entering the home?
    .
    Apparent Amateur Installation noted using questionable materials for this Application.

    *Apparent Use of Automotive Type Clamp Connectors. ( Not Approved for this Application.)
    .
    * Check Value ( check values are used for the prevention of back flowing liquid and are set for specific pressures to accomplish this function ) Sewer Gas could bypass and enter the home.
    .

    It Might have Choked Artie But it ain't gone'a choke Stymie! Our Gang " The Pooch " (1932)
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  3. #3
    william siegel's Avatar
    william siegel Guest

    Default Re: Need a little help

    I looks like it may have already backed up once. I see stains on the wall.


  4. #4
    David Bell's Avatar
    David Bell Guest

    Default Re: Need a little help

    Remove check valve ,install trap primer, vent properly,,, and whats the coffee can for? Bailing out the pit?


  5. #5
    Join Date
    Mar 2007
    Location
    Near Philly, Pa.
    Posts
    1,682

    Question backflow prevention

    Wouldn't a trap primer require backflow prevention including accessibility for inspection, testing and servicing?

    Also, anybody familiar with the Trap Guard product? It claims to hold all the approvals including for outdoor use where a trap could freeze or if a mop string stuck in it.

    Just askin'
    Bob

    Keep the fire in the fireplace.

  6. #6
    David Bell's Avatar
    David Bell Guest

    Default Re: Need a little help

    Flow thru trap primers need no back flo preventers, as they are not being used on a pressurized system, they can be placed at the nearest fixture supply line and give the trap a "spurt" when a supply is opened and closed.


  7. #7
    Join Date
    Jul 2009
    Location
    Lanham, MD
    Posts
    86

    Default Re: Need a little help

    Improper DIY installation and should be removed.

    Ideally the dehumidifier should drain to a sump pump basin which would then discharge to outdoor surface. If a sump pump does not exist, a condensate pump smilar to one used on HVAC could be used to pump condensate to ground surface.

    Many juristictions forbid the discharge of condensate from dehumidifiers and HVAC sysems into sanitary sewer systems.


  8. #8
    Join Date
    Nov 2007
    Location
    Chicago
    Posts
    548

    Default Re: Need a little help

    Other than the fact that they are using a clean out access for a drain, there is no vent for the P-trap they installed. It just does not meet the plumbing code period.


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