Replacing doughnut washer on close-coupled cistern

Tighten the bolts evenly and it should compress the doughnut and everything should firm up. If not, it could be too thick for the job, there are various types about.

Failing that, use the old one & Plumbers Mait.

Thanks for the very quick response, Dave. The old one was falling to bits, so I'll keep my fingers crossed that this new one works.

I tightened it all up, and it's fine. Thanks for the help. Much appreciated.

It took me a number of attempts (and gushing water everywhere while trying). It has to be pretty central otherwise when you tighten the bolts and compress it, half of it wants to flop down the water entrance to the pan. I eventually had to get down low with a torch while tightening up.

Half of it wants to flop down the water entrance to the pan" ???????????? I've not seen any doughnut that "flops" anywhere .They are fairly stiff !!!

Not when sat under the weight of the cistern, tightened to the 'pan under the metal plate, and the water pan entrance was largish with glazed slippery sides (though that might be peculiar to this 'Armitage Shanks' set) compared to the 'standard' donut the plumbers merchant gave me. Mind you, I had a quick look at replacement donuts in B&Q and there seems to be a variablity of design.

Now, thanks to me mention of donuts and glaze, my sugar craving has hit the roof. Excuse me ... ;-)