Hi guys. I need to connect a cwsc and hwsc warning pipe to the bathtub overflow manifold. The problem is i can not give the the warning pipe a continuous slope. The closed coupled toilet gets in the way so i have to run it inbetween the toilet cistern and the pan outlet then go up 5 inch before i can connect it up straight to the bathtub overflow manifold. I consulted the WRAS website and they do not mention anything about warning pipes slopes. Do you think that it is feesable just to go up 5 inch??......i mean should the cwsc float valve fail there would be no risk of the water to go back up the warning pipe and back into the cistern anyway. At the moment the warning pipe sticks out above the bathtub but as this friend of mine wants to redo his bathroom, he would like to get rid of that pipe which quite understandably is not very pretty to look at. Your professional comments would be greatly appreciated. Thank you
warning pipe
- Thread starter dotto
- Start date
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One thing that jumps out at me is, that by 'dipping' the run of pipe you will create a trap. As it is a warning pipe, and will not get frequently flushed through like a basin trap etc, you may well end up with standing water.
Standing water equals stagnant water equals smell.
Standing water equals stagnant water equals smell.
Thanks Charnwood for your answer. That is a very valid point however, i will bump into that situation only when or if the water in cwsc overflows and if that happens i will cut the overflow pipe, let the stagnant water run out and couple the pipe back......i am just trying to think of a solution to the point mentioned by you....which as i said i hadn't thought of. Thank you very much. Anyone has any other ideas please.
If your friend is redoing his bathroom, will he be retiling? You could cut a channel into the wall behind the cistern; or if the cistern is side inlet, why not direct the flow into it? It will have an internal overflow on the siphon.
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Hi Beerlover i do not understand what you mean about the cistern being side inlet.....the toilet cistern has got an internal overflow so i can not connect the cwsc overflow pipe up to the toilet inlet overflow pipe if that is what you mean. Cutting a channel out behind the toilet cistern could be an option actually, though i was thinking of something less time consuming. Thanks for your valuable input 
Where is the ball valve/ball cock/float valve/inlet valve fitted onto the cistern, side or bottom?
Unfortunately that is not an option. I think that i will have to go with Beerlover's suggestion........run the pipe at the back of toilet cistern...........or what i could do is to advance the toilet forward and run the warning pipe behind the cistern without having to cut out a channel for warning pipe, screw a plank of timber in the wall behind the cistern to fill the gap and tile the piece of timber....what do you think guys, would it look a crappy job?
Warning pipes/overflows into manifolds attached to bath overflows with such devices as:
View media item 35604
View media item 35604
Hi Tony do not go and answer the phone when you are running the water in your bath
I generally take showers or very rarely economic baths at about 150mm depth.
If I am called away then I turn off the filling water. Very inadvisable to leave anything running water unsupervised!
If I was to stupidly leave it filling it would then run out of the overflow into the drain.
So what exactly does yours do?
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