Changing syphon

Silicon myself

 

It's not designed to use silicon. Do it properly. Or tie ur orse up outside

 

Never had a problem fitting them with supplied rubber washer.

 

I use clear sanitary seal just a bit round both sides of the rubber I've never been called back in ten years or so cause of the seal had has failed
Not everyone's method but never caused me a problem

 

Can use straight away

 

Supplier for what bud

 

Have replaced syphons with dudley ones on both ceramic and plastic cisterns without a problem.
Have also fitted them in new cisterns without a problem.

 

I have fitted plenty of flush valves and have always use clear silicon without any problems - never had a leak. I use the supplied washer but apply silicon underneath the back nut. Btw, if you are fitting a Dudley flush, get the one that you can remove without taking the cistern off.

 

No need for silicon the rubber washer does the job.

 

Alway have put a smear of Plumbers Gold sealant on the washer, & base of syphon,just in case outlet is slightly uneven.

 

As advised by others silicon should not be necessary, if you do decide to use a sealant I've never had anything get past this, Fernox ls-x leak sealer (23614) stocked by our hosts

 

Just a safeguard to apply a little sealer thats all.

 

Never seen the stuff,it has only been out for a couple of years from what I can gather.
Never had a need for sealant for these syphons.

 

Our cistern leaks a tiny bit as you notice the 'bloo' detergent in between the cistern and the bowl.