Floor drain traps requirements
Floor drain traps requirements
(OP)
I am looking for a code (IPC 2003)interpretation regarding trap requirements. I am designing a plumbing system in a mechanical room which is completely independent of all the other building areas. The plumbing system consist of a network of floor drains and one sink all in the mechanical room. These drains discharge into an atmospheric lift station in the same room and then the waste is transferred to another lift station prior going to the waste water treatment plant. Since there is no sanitary waste attached to it and the lift station is in the same room, migration of gases shouldn't be an issue. Have any one had this scenario before?





RE: Floor drain traps requirements
RE: Floor drain traps requirements
Per code, all these fixtures must be trapped. Your "lift station" is really a sewage ejector which by code, must be air tight and vented.
RE: Floor drain traps requirements
RE: Floor drain traps requirements
But what happens with the trap primers is they are installed with a shut off valve in an access panel in the wall for maintenance purposes. After final inspection, though, the building maintenance people sometimes go back and shut them off because they do not want to deal with them since they sometimes tend to get stuck in the flow position which wastes water.
I like to use the ones that are connected to a water closet flushometer valve. When the water closet is flushed, water goes to the trap of the floor drain. That way they cannot be turned off after inspection.