Recent content by rcflyers

I have a normal vented central heating system with a worcester bosch Greenstar 18Ri boiler. if i wanted to convert this to a sealed system and fit an expansion vessel, safety relief valve, fill loop etc do I need to be gas safe registered? i will not be touching the boiler at all. thanks Tom

If the feed pipe from the loft tank was say 22 or 28mm what is the point of the expansion/vent pipe? The feed pipe would both top up the water in the system when required and also allow for the hot water to "expand" back up into the loft tank.

Bright wire nail test?

Cut the expansion pipe so it is about 2" above the water level and it's now working fine with no hot water ending up in the tank. Thanks again.

Thanks, I have now cut the vent pipe so it is no longer submerged. Will test and report back soon....

I have a traditional central heating system that heats the radiators and also a hot water cylinder. I went in the loft recently and noticed quite a bit of condensation. I switched the central heating on and noticed that the vent pipe into the feed/expansion tank (the end of it is below the water...

Thank you, Has this been done before in this or similar situations?

I have a heating system with 2 zone valves, one for hot water cylinder and one for the radiators. I would like to add a 3rd zone valve (controlled by a separate time control switch) for a heated towel radiator in the bathroom so in the summer months it can be heated to dry the towels. I have a...

Does anyone recognise this particular flush syphon please?

I want to tile the floor in my conservatory. It was built 5 years ago and had a concrete base with expanded polystyrene insulation foam laid on it and then 18mm flooring grade T+G chipboard on top. The foam went soft in places and the floor had dips in it as a result. I have removed the...

A local plumber fitted a new Worcester Bosch condensing boiler about 4 years ago. He fitted the flue as shown in the picture. I recently removed the basket guard to replace it as it had gone rusty. (Why aren't they all made of stainless steel?) Should the flue outlet be pointing up in the air...

I undid the bleed screw, some dark coloured water came out then all it did was drip some clear water. I let it bleed for 2 minutes and refitted the bleed screw. The sound of air is still there inside the pump. I could see the shaft spinning around ok but couldn't stop it spinning with a...

Thanks, Should pump be rotated so the silver disc is facing up in the air so any trapped air can be bled out?

Our pump is a Grundfos UPS15-50. Do they get tired? If I put my ear close to the pump I can hear a soft crackling/popping noise which sounds like air in it. I am struggling to see how there could be air in there. There does not seem to be an air bleed screw on the pump head (although...

Ok, thanks. It may have been there before but it has only been noticed in the last couple of months.