I have just fitted a glass bowl basin in my bathroom, it has a pop-up waste
and no overflow. I have problems getting the water to flow away, I usually
have to operate the waste several times in quick succession, it seems as if
there is an airlock.
Could this be because of no overflow to admit air?
If so, is it possible to fit some sort of device to admit air?
Many thanks in anticipation.
What is the regulatory position about sink & bath overflows?
IIRC it used to be down to local requirements.
Can the bath pop-up waste fittings that seem to be popular now be
used without the overflow connection?
Chris J Dixon Nottingham UK
I looked in my 2 year old regs copy, and the matters addressed are pipe
diamter (32mm) and use of traps only. No mention is made of requirements
I have left many a bath/sink/basin running and flooded the floor, even
equipped with overflow. No overflow I have ever used can cope with mains
pressure water at full crack on even a basin tap.
My conclusion is they are almost a waste of time: The only time they do
something useful is when you lower yourself gently into the bath, you
don't have to pull the plug out to drop the water level if you do it
slow enough for the overflow to cope.
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