Does the rubber coupling on a closed coupling toilet have to go through the hole?
Question:My toilet was leaking and so I replaced the cistern but it still leaks. When I put it all back together the rubber coupling doesn't go through the hole it just sits on top. Is that right or have I got the wrong on and need one to go through the hole?
Answers:
The rubber seal between the cistern and the toilet needs to be in good condition and form a good tight seal. Buy an new on and tighten loosen the two screw that hold the water tank in place. Tighten the tow bolts on the bottom of the water tank and this will allow the water tank to move down towards the toilet forming a good seal. Then re-tighten the screws holding the tank. If for example the tank was still secure to the wall and the toilet was still tight on the floor there would be no movement between them and the seal would not work. You need to loosen the water tank as the toilet cannot move off the floor.
The way you have done it is right but you have to make sure the fitting is really tight
could be a number of things but without more info or even seeing it hard to tell you what to do
The rubber coupling ( the doughnut) sits between the cistern and the toilet bowl. I think the leak is coming from the big nut that holds the syphon in position. Or, the overflow nut underneath, or the cold water connection.
Is it leaking all the time or only when it is flushed. If all the time then it is the large back nut on the flush mechanism or the the long screws the go through the bottom of the cistern. Check that you have fitted all the rubber washers in the right place and that they are tight. If only leaking when flushed then it is the large soft ring between the tank and the loo. It should sit over the back nut on the cistern (On top). Make sure you have the right type and the right size.
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