Replies

1. 
   BillHartmann | Jun 16, 2006 06:50pm | #1

   Are you talking about a self primming trap for a WASHING MACHINE. Never heard of anyone doing that or any reason to.

   Or are you talkin about one for an Overfill floor drain or a drain pan trap.

   Some codes require them for floor drains that don't normally get water regularly. One solution, if possivle, is to not run the drain into the sewers, but to daylight it.

   Another is to use this instead.

   http://www.trapguard.com/

1. 
   budgee | Jun 16, 2006 10:33pm | #3

   I recently read an article ( not sure if it was FHB or JLC?)about Laundry rooms, it mentioned something about self priming traps.  Reason I am asking is, I am looking into doing a second floor laundry room in a home that is used infrequently.

   Thanks for you replys.

   S

1. 
   NickNukeEm | Jun 17, 2006 04:10am | #5

   I think I read that article, something about infrequently used p-traps going dry eventually from evaporation.  How infrequent usage are you speculating?  Traps will remain covered for weeks, months depending on the environment.

   Assuming you won't be around to throw in a cup or two of water once in a while, you might do just as well to throw in some septic safe antifreeze (the kind used to freeze-protect mobile homes).  I've seen that stuff hang around for more than 6 months without uncovering the trap.

    "I am the master of my fate, I am the captain of my soul."  Invictus, by Henley.

2. 
   Shacko | Jun 16, 2006 06:57pm | #2

   Explain what you nean when you say self-priming trap?, a wash machine trap should be primed every time you use it, you should not need any priming. You have to know that codes are local. A little more info. would help.

3. 
   Norse | Jun 17, 2006 02:02am | #4

   Is this because your vent is too far away? Or a flat vent run?