Cylinder Problems.

[WelshMan]

Fitted a new direct hot water cylinder today in work for my boss and tidied up some pipework. Filled Cylinder and had 2 small leaks on the blanking plugs. Drained down cylinder,removed plugs, removed ptfe tape and reapplied fresh ptfe tape. Filled cylinder back up and still get a itzy bitzy weep on the bottom blanking plug . So i goto drain down again tomorrow and do it again. Beside ptfe is there a pretty surefire way to ensuring this small weep isnt going to happen again once i refill. Bosswhite or some other similar threading compound be better than ptfe?.

 

[gasandoilman]

I use both boss white and ptfe

belts and braces

 

[wiggikins]

Hemp and Paste!

 

[WelshMan]

isnt hemp & paste illegal now due to the possibility of bacterial growth ?.
Regarding the bosswhite/ptfe , which comes first ?

 

[wiggikins]

isnt hemp & paste illegal now due to the possibility of bacterial growth ?.
Regarding the bosswhite/ptfe , which comes first ?

News to me! , in any event do not use Boss white cos' that is not for potable use!! Don't use paste with PTFE , one OR the other!

 

[stardanny]

How many turn did you apply on thread?

I use either PFTE or boss green.

Dan

 

[WelshMan]

it must have been a good 10-15 rotations of ptfe.

 

[wiggikins]

TRY 25!!

 

[WelshMan]

k wiggi will retry with more ptfe tape, thank you for the help.

 

[Razor900]

Try Loctite 55 sealing string, screwfix sell it, marvellous stuff for cylinder unions

 

[AlanE]

Second that!! (Loctite 55)

 

[londonboy123]

are you sure the cylinder isn't faulty? it shouldn't leak at all, especially if you use 25 turns of ptfe !! surely not? are the nuts tight enough?

 

[seco services]

25 turns of ptfe

 

[WelshMan]

25 turns of ptfe tape later and all is well . Now to install 2 new urinals.