Do bathroom sink drains come in different sizes?
Most drain openings are 1 1/4 inches, although 1 1/2 inches and 1 5/8 inches are also common sizes.
How many GPM can a 1 1 2 drain handle?
A 1 1/2 in. drain can easily accommodate 4.9 gpm for cast iron and 8.3 gpm for PVC. While the flush typically occurs within 12 seconds, the flow levels out quickly in the drain.
How to plumb two sinks into one drain?
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Is it OK to have a 2 ” shower drain?
The water’s coming from the same pipe! It is code to have a 2″ drain for showers. Couple of reasons I imagine. 1st, your tub in effect has a 12″+ high curb (the overflow), your shower will have one thats a fraction of that.
Is it OK to have two sinks in one bathroom?
1 Speaking from personal experience, only use one trap in a dual sink bathroom. With two traps, you can get air pockets blocking one or the other’s drain. You also promote stinky slime growth inside the pipe between the two traps. I don’t know the biology with that.
How big is the drain from the shower to the tub?
In the shower to tub area I have a 2″ drain pipe coming from the wall properly vented, I extended it by attaching more 2″ PVC and a 2″ P-trap. I lined up the 2″ P-trap to where the tub tailpipe will come down. The tub (Whirlpool actually) has a 1 1/2 drain.
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Where does the drain line start in a bathroom?
Typically, an entire bathroom group vents in the wall behind the sink, where a 1 1/2- to 2-inch vent pipe connects to a sanitary T-fitting. The vent pipe runs upward to meet the house’s main vent-and-soil stack in the attic. The sink’s drainpipe runs downward to connect in the floor to the main drainpipe, which originates with the commode.
The water’s coming from the same pipe! It is code to have a 2″ drain for showers. Couple of reasons I imagine. 1st, your tub in effect has a 12″+ high curb (the overflow), your shower will have one thats a fraction of that.
1 Speaking from personal experience, only use one trap in a dual sink bathroom. With two traps, you can get air pockets blocking one or the other’s drain. You also promote stinky slime growth inside the pipe between the two traps. I don’t know the biology with that.
