roca mono flush seals

[gelly]

how do i get at the seal inside the flush valve - roca post a diagram relating to their dual flush which isn't helping me. The valve a very lightweight thing and I am worried about breaking it. I think I need to replace the seals because the cistern is constantly leaking water into the toilet. The seal at the bottom around the screw thread part is just there and easy to get at but do I also need to replace the grey seal inside which I can see and not get at. Do people recommend replacing the whole thing ... this is much more expensive and my reason for trying to sort this out my self is being strapped for cash. I am a diy novice and just getting the lid of the cistern and the valve unscrewed was a fairly big deal for me but I don't know what to do now. Thanks

 

[markfxy]

You should be able to twist it off to replace the washers

 

[leelister6]

It sometimes just wants a good clean round the valve seating and washer, can get gunked up.

 

[gelly]

thanks for this: you were right. on the downstairs toilet cleaning it up was all it took and has been working without leaking. I live on one of those new build estates where the houses have more toilets than sense, and am still having a problem with one of them. I simply can't unscrew the flush valve to have a go at sorting it out. I am going at it the right way as I managed with the other one ok, but this one won't budge for me, although I am trying with all my might and hurting my hands and my shoulders. Short of finding a much stronger person (no one volunteering) are there any secret plumber tips I could try to get it to unscrew for me??

 

[leelister6]

Should just twist off same as the other one. Try pushing down while twisting

 

[ddplumbing]

Roca released a replacement seal last year (maybe the year before) it was a different material and wasnt as prone to the "gunk factor" but it appears they stopped doing just the seal and now sell complete replacements! at about £20 a pop.

As you have discovered its usually just because they are dirty.

Try reaching into the cistern with both hands, one to hold the very base, the other to turn the bayonet fitting. sometimes the whole unit will turn if not tightened fully when installed (I also live in a new build estate and find these always leak)

 

[gelly]

finally fixed the problem but have to admit I never did get the valve unscrewed ... a friend with no plumbing experience but used to messing around with British bikes also failed to budge it but meanwhile I had got hold of a replacement seal (not the very bottom one, the one inside the unit) and somehow he got the old one out and the new one in with the valve still in place, which sorted it. Next time I have to deal with them (and I am sure there will be a next time) I will remember the hint above. I still have one roca toilet which hasn't failed yet!

Thanks to all for the helpful advice. Very much appreciated.

 

[gelly]

roca gave me a part no for the seal which I ordered through Travis Perkins for £3.50

 

[Sam Patching]

IIRC the roca flush valves are on an anti-clockwise bayonet fitting and are best turned at 1/3rd up from the bottom or you can break the body if the plastic has gone brittle. Get some silicone spray on the moving parts before you put it back together too if you are in a hard water area.