Hi - I hv had this pump for abt a year - and what I noticed is that the taps begin to leak at the joints, the toilet cistern overflowed and recently the kitchen sink taps burst. We hv since replaced the joints but the problems persists and the joints leak. My plumber says that the pump is too powerful for us - ie we stay in a single storey house with 2 bathrooms - paxs only. Is that correct? What can I do now?

The flush control panel normally comes off. You can then hopefully see inside. You won't be able to see much though as the cistern will be in the way...

Places to look for leaks are:
Soil pipe to pan
Cistern to flush pipe
Flush pipe to pan
Cistern overflow.

replace the whole control unit
There may be 2 problems
the small washer that shuts off the water flow when the level is reached may be swollen and not sealing properly
the section at the bottom has cracked at a thread level
so by replacing the unit you will eliminate both problems
to remove the unit, turn off the water tap, flush the system, holding the button down until all of the water has gone
remove the inlet pipe at the bottom of the cistern
undo the retaining nut under the cistern and lift the control unit out
there will be water in the bottom of the cistern so use old towels on the floor to soak up the water that will run out

if you flush and the water continues to run into the bowl the it is the flush washer that needs repalcing
If that water shuts off and the cistern fills and then continues so that it flows down the over flow pipe into the bowl the it is the water inlet control washer that needs replacing

there is an adjustment screw ontop of the fill valve assembly. Tighten this down and the water level should stop at a lower level unless the internal mechanism has crusted up.

most modern toilets do not have an overflow pipe to outside instead they overflow into the bowl itself so have to adjust level so it does not overflow into return

may be your overflow on your toilet cistern... check its shutting off the fill valve and not dripping into the overflow.

Hi I have exactly the same problem, in fact it could have been me writing this - 3 toliets fine, main bathroom hisses. The Geberit flushing ciphen on the left (the smaller one) has been replaced and there is still a problem. If you look carefully,the water level needs to come up over the lip of an opening on the Geberit part and this causes the valve mechanism to shut off and stop the hissing. It is fine for about 40 minutes and then the hissing starts again if you don't flush it. The reason is that the water level has gone down but there is no obvious signs of where the water is going. It could be that the central flush mechanism is leaking slightly. I am going to replace this part next. If I were you I'd see if you are getting any water leakage into the pan when toilet not in use to see if the water level in the cistern is going down James T

Take the lid off the cistern tank and have a look. There is a ( usually ) round float ball in there. This is what is causing it. When the cistern fills up the ball is supposed to float up and the arm it attaches to shuts off the water, usually at the opposite end to the float.
Turn the tap on the pipe to the cistern so it is nearly off and move the arm up and down by hand. See what it is getting stuck on or what is happening.

If it is not a simple sticking problem, you may need to undo the top of the cistern valve itself ( opposite end to the ball. )
Turn the water off completely to the cistern to do this or you will get squirted. :)
They are fiddly little valves and all a bit different but if you take your time and make sure you have a good light you will be able to work out what has been happening.
Hope this is some help.

Hi,

This is caused by the 'syphon' mechanism sticking, quite often nowadays the 'brilliant' plastic push button/ syphon combo sticks, and most toilets are fitted with an internal overflow, lift the lid on the cistern and check for anything causing an obstruction.

More often than not, it's a tiny bit of scale that causes such a headache, and the fact that nothing is made with any quality nowadays!

If you can't see what's wrong call a plumber, he/she will solve it.

I hope this helps

Steve

Most modern flush units have built in overflow protection, if the water level rises above the flush device then water runs into the toilet itself rather than out of the overflow pipe to the outside as in older toilets.

You could always check by taking the top off the cistern and push down the float device with your finger to see what happens!

hope this helps