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Try using Hubdoc mate

Your tiler has a real “Can’t do” attitude and sounds like a really negative and unflexible subbie. I can’t stand to be around people like this as their attitude will rub off onto others and drag people down. To not even offer to have a go at siliconing just sums him up. Hope you find a good...

Selco or Travis Perkins are the places to go.

Just done.

18-24kw depending on if you have an unvented cylinder, hot water priority or standard open vent cylinder etc.

Easy now

Not normally needed, but I personally always put some Dow Corning 785 on the washer on the inside of the cistern.

How many radiators do you have? If you have a combi or system boiler then the boilers existing expansion vessel might not be big enough for the volume of water contained in the heating system and thus an additional expansion vessel might need to be installed the cope.

Yes I agree, I think you and me are not in tune communication wise.

Newboy I think if you read what he said, then he said he used PTFE on both ends of the connection. I wouldn't know how many turns of PTFE it takes to pack an M10 to a M12,It sounds like you speak from experience about having leaks on these and have found out the hard way about bodging with...

Yes your right, I totally forgot about 8mm. The op said he wrapped PTFE on the threads so it IS possible that he MIGHT have used a smaller size and thus the PTFE packed it out as it entered the tap.

Guys read what I've wrote, it 's easy! M10 thread goes into a 10mm thread M12 thread goes into a 12mm thread Just because one end is one size dosn't mean that the other side is. All flexi's for mono blocs are sized at m10 or m12 so if it don't fit or leaks then you have used the wrong...

I Think you'll find you won't Newboy, if you fit the correct size for the thread!

Have you got a water meter fitted? If so this will be the culprit. Phone water board and they will replace with a new one.

Looks like you will have to solder 22mm copper pipe inserted at each end.

Hey OP, mono bloc flexi's are normally sized as M10 or M12. It sounds like you have fitted M10's instead of M12's. PTFE tape isn't needed, either wet o-ring or use a small smear if silicone lube if need be.

You need to measure your incoming cold mains water pressure and flow rate, this will determine the Kw output for hot water that you can have.

If your gas safe registered try joining the combustion chamber part of the forum. Might get a heads up in there?

If your on a budget Salus or Siemenns are okay for programmable roomstat's.

You need to re-pipe the open vent and cold feed pipe in relation to the new pumps location. It should be boiler, open vent, cold feed, pump on the flow. Need to fit an auto-bypass if using x2 2 port valves as well. Would also tee in the cylinder return closer to the boiler and not...