2 p traps (sink and bath) into 1 waste pipe no vent
#1
05-04-18, 09:07 AM
2 p traps (sink and bath) into 1 waste pipe no vent
When I run the sink water, I hear a gurgling sound every 10 seconds from the bath drain.
On looking below (ceiling space of the floor below), I see 2 pipes going into one 2" waste pipe.
The one under bath has a p trap.
The sink p trap is directly under the sink in the sink vanity/closet.
Is it possible the sink is syphoning the bath somehow?
On looking below (ceiling space of the floor below), I see 2 pipes going into one 2" waste pipe.
The one under bath has a p trap.
The sink p trap is directly under the sink in the sink vanity/closet.
Is it possible the sink is syphoning the bath somehow?
#4
05-04-18, 12:16 PM
The gurgling implies no vent?
Gurgling drains usually indicated an obstruction in the venting system. If there is no vent, as you imply, then you can add a vent under the sink so the air in the pipes will be pushed out of the vent as opposed to being pushed out of the tub drain.
