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water cannot penetrate as opening sealed. Also rubber allows for expansion cement does not. Not going to labour point..its all about preference

yes its different

rubber sealing tape, usually used to seal around gas fire openings etc, sticky backed so retains position.

I agree about the pebbledash, the only way to solve the problem there is to use a gas seal Rubber tape around the exterior aperture thus sealing the hole effectively. This is in addition to the flexible seal. This provides adequate weather proofing as well as denying any products of combustion...

The mains pressure to the loft isnt sufficient to suport the flowrate. The gravity pressure from a tank in the loft would give greater pressure as it would normally be supplying water through 22mm pipework to the bathrooms below.That is why the old systems could fill a bath quicker than the...

, That is interesting. After consulting with several boiler manufacturers, this matter was raised after an inspector picked up one of my installations. The manufacturers decided that my installation was correctly installed, and that it conformed to their specifications. Gassafe sent out a...

usually spplied with flue, but can be purchased at local plumbers merchant

Ok.there should be a flexible seal on the outside, and the inside can either be sealed by plaster, or another seal similar to that outsde.Outside normally black, inside white. I prefer to use seals both sides, as it makes any servicing issues easier to solve..like removing bees'nests, bird...

chesck valves still should be fitted to feeds to tap

What boiler is it? The flue appears to go downwards to outside. If it is a condensing boiler it should rise to outside :!:

been dormant for a while, need to warn trades of NUS/GROUP3 ENERGY SCAMMERS.

Venturi; a short tube with a constricted throat that is used to determine fluid pressures and velocities by measurement of differential pressures generated at the throat as a fluid transverses the tube, also known as a venturi tube. the action caused is called the venturi effect. :lol: :roll:

a high pressure jetter should clear this, the ones i,ve used in the past have cleared all sorts, even if sometimes it has taken a while.

looks like old putty. you can try chiselling it out , or applying heat around it to loosen it up. if in doubt just cut it out and use pipe sleeve joiners available from most plumbers merchants :)

try local grahams or other plumbers merchant

sorry see you are from soton, wont hold that against you lol limescale is most likely culprit. isolate cistern and separate filler head. will find trumpet shaped item inside. hole in middle clogged most likely cause. A local plumber will sort this out in about 20 minutes imho

most likely the venturi in the filler valve is cloged, either with debris from the incoming main or limescale.. are you in ahard water area?

serves me right for not readin the date...I will put it down to going senile early, :lol:

is the bath adequately supportedin the first place? :?: