Why are the overflow holes in a bath not big enough to cope with the taps on full blast?
Posted by James on November 11, 2012 · 2 Comments
Question by johnstonemac: Why are the overflow holes in a bath not big enough to cope with the taps on full blast?
I’ve never done it-I just thought this must be a design fault.
I’m a bit thick.
Best answer:
Answer by jay p
the overflow drain works on gravity ( it’s realy a vent for the drain) but your fawcet is under pressure. if you hooked the fawcet directly to the drain it would flow fine.but it isn’t so it don’t. just the way it is. good question, you are thinking.
What do you think? Answer below!
That over flow hole should handle all that the taps can supply. If it doesn’t, your drains are likely partly clogged. A tell tale sign of this is that your drain empties slowly.
if you were to take off the chrome cover on the overflow, you would see that the pipe connected to it is 1 1/2″. this is MUCH larger than the tiny 1/2″, or 3/8″ supply tubing to the faucet. i haven’t found an overflow that couldn’t keep up to the faucet. i test each one before i complete an installation to make sure that it doesn’t leak.
in regards to the other answers, this overflow is NOT a “vent”, and a slow drain on a tub is, 90% of the time, due to hair plugging the drain inlet in the bottom of your tub. the overflow connects to the piping downstream of this hair catcher, so it would not experience the same slow drainage.