Seating a syphon correctly

[Plum Bob 66]

Hi There

And before i start I know your all going to say here we again.Please just explain to this newbie the correct way of replacing a syphon on a close coupled toilet to ensure it doesnt leak. At present I do it like this, but it allways fil me with trepidation.

1. Isolate water via service valve or mains
2. Flush and drain with my aqau vac
3. Unscrew or saw off wing nut dependant on condition.
4. Uncouple the cistern and take out old syphon
5. Place corden of silicone round base of syphon under gasket, refit
6. Screw up and hand tighten nut
7. Repalce donut if existing one
8. Re seat and test.

If some of you have choked on your tea regarding point 5 and use of silicone to ensure a seal then I apologise. Im only interested in best practice and making sure the syphon seats properly and remains watertight with the flush test

So please some you old hands out there can you give me a definitive version of the above that should ensure success every time

All the best
Bob

 

[Gray0689]

Hi There

And before i start I know your all going to say here we again.Please just explain to this newbie the correct way of replacing a syphon on a close coupled toilet to ensure it doesnt leak. At present I do it like this, but it allways fil me with trepidation.

1. Isolate water via service valve or mains
2. Flush and drain with my aqau vac
3. Unscrew or saw off wing nut dependant on condition.
4. Uncouple the cistern and take out old syphon
5. Place corden of silicone round base of syphon under gasket, refit
6. Screw up and hand tighten nut
7. Repalce donut if existing one
8. Re seat and test.

If some of you have choked on your tea regarding point 5 and use of silicone to ensure a seal then I apologise. Im only interested in best practice and making sure the syphon seats properly and remains watertight with the flush test

So please some you old hands out there can you give me a definitive version of the above that should ensure success every time

All the best
Bob

That's the way I would do it exept
Point 6 I give it an extra tighten with a set of footprints
Your doing a good job keep it up

 

[PlumbBobBob]

i agree with gray0689 regarding point 6 although with the extra nip up silicone is not normally needed.

 

[WaterTight]

Sounds all bang on to me. Allay your trepidation. Is a good list.

1. Isolate water via service valve or mains
2. Flush and drain with my aqau vac (carry in a hoover if you want but i just lift the cistern off the pan and tip it down the pan or in the bath - just be careful)
3. Unscrew or saw off wing nut dependant on condition. (not got one but a dremel is very good for making light work of cutting off wingnuts when access is a b**ch)
4. Uncouple the cistern and take out old syphon
5. Place corden of silicone round base of syphon under gasket, refit (dry inside so silicone has a shot at setting and if i'm up agains the clock and don't want to dismantle toilet again, bead of silicone round rim of hole in pan where doughnut sits)
6. Screw up and hand tighten nut (as said, extra 1/4 or 1/2 turn to tighten with big grips/footprints)
7. Repalce donut if existing one
8. Re seat and test. (replacing washer in inlet connector if need be, which it almost always does and 3 times out of 5 the screws that secure the cistern to the wall)

 

[Henno82]

Bob the list is sound although i never use silicone but thats just me : )

 

[Gray0689]

Bob the list is sound although i never use silicone but thats just me : )

Some do some don't silicone is personal preference
I do use it

 

[Henno82]

indeed Gray each to thier own : )

 

[Toddyplumb]

I dont use silicone unless the bottom of the cistern is like the Himalaya's and that is quite often nowadays !

 

[carpstu]

hi sounds good to me fella i dont use silicone shouldnt need to

 

[oldplumber]

why is it i always have to go to call outs where silicone covers everything and the whole lot leaks anyway! what did you all do before silicone was invented?

 

[Toddyplumb]

Putty !