How to replace a leaky WC Cistern syphon

[siliconeseal]

Looking at the state of the wingnuts I can see (one is already missing so that save some work) you'll probably be able to break them off with a good pair of pliers... Then minimal work with cut off blade. Multi tool is best if you have one?

I've attached a photo of my Dremel with a diamond cutter blade mounted in it. Dremel was one of the earliest (if not the earliest) manufacturers of multi-tools.

 

[siliconeseal]

Please take a look at the two attached photos of the water inlet into the cistern, and advise on the best way to detach the cistern from the inlet. IMG_9475_Anno shows both sides of the inlet across the cistern wall, IMG_9476 is a closeup of the inlet on the outside of the cistern wall.

I was thinking of undoing Nuts A & B in photo IMG_9475_Anno and then pulling the cistern to the left of the photo, away from the inlet tube. Is this the best way to do this or have you a better idea?

 

[denso13]

Loosen here and disconnect the cistern.

 

[siliconeseal]

Loosen here and disconnect the cistern.

View attachment 418492

Thank you Denso!

 

[ChrisJP]

Loosen here and disconnect the cistern.

View attachment 418492

You might also need to unscrew the thin nut and withdraw the fill valve unit into the cistern. That way you'll be able to lift the cistern straight up with no obstructions. Have some large polythene washers to hand for re-assembly to replace the existing packing under the thin nut.

 

[siliconeseal]

You might also need to unscrew the thin nut and withdraw the fill valve unit into the cistern. That way you'll be able to lift the cistern straight up with no obstructions. Have some large polythene washers to hand for re-assembly to replace the existing packing under the thin nut.

I will try to avoid undoing/loosening the thin nut and thereby retain the integrity of the inlet to cistern wall water-tightness. Doing this will also keeping the float-valve in its original position, giving me one less thing to worry about. I have enough clearance to slide the cistern to the left, clear of the inlet pipe (if I only undo the nut pointed to in post #33), a couple of inches to the left will be sufficient to detach the inlet, to be followed by lifting the cistern vertically up.