My Suffolk county backflow training

Discussion in 'Irrigation' started by greenmonster304, Mar 6, 2009.

  1. greenmonster304

    greenmonster304 LawnSite Gold Member
    Messages: 3,690

    Over the past few weeks I have been working for a plumber friend. He has moved his business to focus on back flow installation and testing. Now after an out break of legionnaires disease that occurred in a chiller in an apartment building that was cross conected to the domestic water, the NY heath dept. is cracking down on all the commercial buildings that don't have RPZ's.

    We recently did an install on a restaurant. we put in two new meters, 1 RPZ for the toilets and wash sinks, 1 RPZ for the fancy Tensui water filter, and 1 rpz for the irrigation.

    It has been a good experience working with him and learning all the rules on how to install the assemblies to code.



  2. DanaMac

    DanaMac LawnSite Fanatic
    Messages: 13,226

    Our codes require that if an RP is in the building, it must have a catchment attached to the bottom and pipe going from it to a floor drain. We have a few that are set up like this, but not many.
  3. greenmonster304

    greenmonster304 LawnSite Gold Member
    Messages: 3,690

    the same goes for here. but what you cant really see in the pic is that there is a 4'x4'x3' cement block barrier with a gravel base that drains out. the Water Authority also accepts this method for areas with multiple assemblies
  4. mitchgo

    mitchgo LawnSite Silver Member
    Messages: 2,956

    Good Job! Looks Great!
    That's a good size drain for inside too.
  5. Mike Leary

    Mike Leary LawnSite Fanatic
    Messages: 23,174

    No air gap drains for the reliefs? Sure would not fly around my area, inside or outside. Our code calls for 2" mininum pipe to sump.
  6. mitchgo

    mitchgo LawnSite Silver Member
    Messages: 2,956

    2 " gap here as well.

    The least you can do is install gap drains to all 3 and just tee the 3 together down to the drain.
  7. hoskm01

    hoskm01 LawnSite Fanatic
    Messages: 5,690

    Monster, did you work for free for the knowledge and as a friend? Or did he pay you. Looks like a lot of good knowledge either way.
  8. Wet_Boots

    Wet_Boots LawnSite Fanatic
    Messages: 50,759

    Floor drains in the rooms where the RPZs are located is also accepted practice.
  9. greenmonster304

    greenmonster304 LawnSite Gold Member
    Messages: 3,690

    I am getting paid. He also does regular plumbing. This past week in the same restaurant, we re-piped all the waste lines for the kitchen and bar because they were all pitched the wrong way because the main 6" cast iron sewer pipe came in the building 1" from the floor joists so that had to be changed as well
  10. Kiril

    Kiril LawnSite Fanatic
    Messages: 18,335

    I thought Suffock Co. didn't believe in cross connection. :laugh:

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