Continuing with my WC project, I need to fit a cistern to a clos
coupled toilet pan.
I got the WC Close Coupling Kit, from Screwfix, 17405, of which I onl needed the doughnut ring, or sealing diaphragm.
My problem is that it is too thick and even tightening the wing nuts t the maximum the gap between the pan and the cistern is too wide, a least 1 cm.
Then pan I am replacing was attached to the cistern with a muc narrower gap and had a much thinner foam washer.
Am I using the wrong sealing diaphragm?
Just to make sure, I am putting the side of the doughnut ring wit concentric cylindrical steps facing the cistern and the central outle from the cistern into those steps. Is this correct?
I am asking because putting the ring the other side actually makes th gap narrower, but perhaps less water tight.
Lastly, is it better to put some silicone sealant around the ring?
Thanks,
Antoni
-- asalcedo