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Pump definitely running and water and rads heating up as normal

Ill try that tonight. Any other ideas though or is this the likely cause?

Presume you mean isolating ball cock, draining some water of a rad with the valve on manual and checking if the level of the tank goes down? ie there could be a blockage in the air separator?

Hello, Got a open vented Y plan system with a Suprima 30 non condensing boiler (10mm microbore CH). & small rads in a 3 bed house. The feed vent are combined with an air separator. Came back from holiday (boiler off for a week) and noticed the above noises when the HW was turned on. Noises are...

Does anyone know if it possible to cap off a Glidevale Versa Tile Vent internally. We had a soil stack connected to it but have replaced the soil hosing with an air admittance valve at the top of the soil stack so the vent is no longer required. I would rather not have to get on the roof and...

Question out of curiosity really! Have recently done a lot of improvements to some rental properties and one job I did was to replace all the CH controls. Noticed when replacing the programmers that all had terminals L N CH off HW off CH on and HW on. In each case there was only need to use the...

Thanks. To clarify I have 7 rads in total (small semi 2 bed detached house) - 4 upstairs and 3 downstairs. All three downstairs have drain offs. As an alternative to running the pump could I go around each of the downstairs rads in turn flushing water until clear (with valve in manual...

Thanks. Bit unsure how to make the pump run with the boiler off - is it essential for the pump to be running? I have an S plan wiring layout if that applicable?

I have had X400 in our open system for a month now and its time to flush the system and add inhibitor. Is it ok to use the following method? Connect hose to the drainoff point on the radiator downstairs, open the valve and allow the water to run clear. Or should I isolate the FE tank and drain...

I have a 32mm waste pipe entering a strap boss and adaptor on the soil pipe under the floor in the bathroom (the boss and pipe are actually under the floor, just the waste pipe protrudes going up to the sink trap). My question is is it possible to remove the waste pipe from the boss adaptor...

Just wondered if people use and form of sealant (eg plumbers gold) on certain plumbing joints? Specifically I was curious about the ones below: Tap connectors (on the fibre washer) On a pop up basin waste Around flush valves (where the threaded part is connected to the cistern) On the...

The float valve is fine and the tank is very clean - it was the full level I was curious about - should it be touching the dip pipe or below it?

Hello, Wondered if anyone could advise what level the water should be in the tank. Mine seems to be quite high (it just covers the bottom of the dip pipe for the overflow. Is this correct?) Thanks

I have recently moved into a house with a Potterton Suprima 30 boiled (non condensing) from 2000. The boiler heats the CH/HW fine and always fires first time and has been regularly serviced however I have noticed the following. When the hw is heating up, towards the end when the cylinder is...

Great, any hints/issues with refilling a 10mm microbore system as opposed to a normal system which I have done before?

Thanks, I just thought because having monitored the tank with the heating and hw on for a while the tank never seem to get hot or even warm so thought there was not much 'movement' through tank to let the cleaner enter the system. In my old house the fe tank used to be a little warm when hw/ch...

Yeah know its not a powerflush but the terminology on the cleaner says to flush the system instead of just drain. I understand now that flush in this case means to drain/refill a few times and heat up and drain as has been said. I was worried about issues with combined feed vent (which is...

Thanks is there any issue with it being a combined feed vent pipe?

When adding a system cleaner (Sentinel X400) the instructions say to leave in, then drain which I understand but they also say to flush the system. I am not using a powerflush machine so could someone explain what this means. I took it to mean leaving the drain valve open with the cold feed to...

I have an open system with a standard boiler and combined feed vent pipe with an air seperator fitted. Recently I was going to drain down, add cleaner, drain, refill etc I have noticed something that I consider odd though. When the heating and hot water are on there seem to be no circulation...