toilet cistern

[noname]

Which way round should the plastic piston fit in the toilet cistern filling valve please. Does the larger diameter end press the rubber washer or the small diameter end.

 

[mickie]

the smaller end should point towards the float, like an arrow

 

[noname]

Thanks mickie for your quick reply. I was in the process of changing the large washer and the piston fell into the toilet basin leaving me to guess which way it should go back. Now I know.