I’m trying to decide what’s th best type of drain for a laundry room floor that will not be connected to the sewer- it’s just in case of a leak and it drains directly outside the building.
This is a new construction application and I plan on tiling the floor on 1/4″ or 1/2″ Hardibacker.
I found what is called a “general purpose” drain at the plumbing supply house, but it’s made of ABS and there’s no adjustment. Is there a cast iron version that’s similar to the ones used in shower pans?
Thanks!
Jim
Replies
Often a metal "disaster" pan is fabricated to sit under the washer with a drain in the bottom and an edge that raises up about an inch. Another option you might consider is a system with a sensor that sits on the floor and shuts off the water supply if it detects water. Sorry I don't have any links for you.
I'm not a plumber but, for many applications the plumbing supply companies have a bucket type trap with an adjustible / threaded ring for the grille opening. Most have a "trap primer" which keeps water in the trap so that sewer gases don't back up into the room.
Note that this drain may be a code violation.
Here you'd be required to run a water line to it and use one of those automatic fillers if you wanted to connect it to the sanitary sewer. Run it to daylight with no trap, sloped to drain dry, and it would probably be allowed. Present it to the inspector as a sort of Smitty pan on steroids.
-- J.S.
I've used a product called a flood saver. Much like the disaster pan described except it is plastic, has a back and a built in wet box for the feeds. not too ugly.
Why would tying it into the house drain system be an issue?
A drain not tied to the sewer system could contribute to groundwater pollution, etc. Then there are the issues of rat runs, etc.
If Tyranny and Oppression come to this land, it will be in the guise of fighting a foreign enemy. --James Madison
OK you looking for a pan or a drain built in to a tile floor or something?
Do you look to the government for an entitlement, or to GOD for empowerment. BDW
Here is a waterless trap. So you don't need a primer.Or if is exits directly outside then it would block rats and air.http://www.trapguard.com/
You beat me to it - I had a little trouble finding the link :-)
My laundry room will be on the second floor. It won't be that big so I intend to do the floor as if it were a tile shower and install a Trapguard trap in the floor. It will drain to the outside and not connect to the DWV system. This trap does not need to be wet and should prevent air infiltration as well. I may add a one-way flapper valve (usually used for sump pump outlets) to the outside end to prevent small animals from making a home and to further reduce infiltration.
Check it out:
http://www.trapguard.com/
Jerry