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Well, funny you say that but you were spot on! There are two single-port valves. I took the CH actuator off and the spindle underneath couldn't be turned by hand! Unfortunately, I can't say for 100% whether the valve was open or closed when I took off the actuator but certainliny as soon as I...

No I didn't tie up the inlet so if I open the valve at the radiator new water pours in. Really don't know what to do and I image calling out a plumber on Sat night ain't going to be cheap. :(

Ok, I've got a bit further. The valve near the boiler was stuck - I unscrewed it all the way and took out the nut and the plug was still stuck down - bone dry. I've now put the system on for 10 minutes, and when I open the valve near the rad I was originally trying to replace, the water is...

Yes when I run it boiler comes on for about 30 seconds and then goes off then comes back on again.... Pump makes a different louder noise than before and rads fdont heat up (after 10min test)

Could it be that an airlock just a bit further away from the drain valve on the boiler is stopping water coming out? ALthough suspcious that the drain valve would be totally dry. I really don't know what else to try?

Yes systme was working before hand and I'm getting water out of most of the radiators (the ones with working bleed valves!). I tried draining from the radiator whose valve I was replacing and got about a bucket out but haven't tried draining more than that.

MAny thanks for the replies. Im pretty sure it is an airlock now because there is a drain valve on the return pipe to the boiler. When I open it nothing comes out! The valve looks in reasonable condition and turns faily easily so guessing there is no water in there? I've opened the pump...

Anyone please?

HI I bunged CH supply from FE tank and also the vent. THen I took the old valve off the rad and the water flowed out of the radiator. There was only a cupfull from the pipe side of the valve. THen I went upstairs and removed the speedfit cap on the vent pipe and unbunged the FE tank. (I'm...

Now I've truly gone and screwed things up in this house. Replaced a lockshield valve on an upstaris rad using the "bung/vacuum" method. When I remove bungs from two pipes in F+E and turned heating back on the pump appears not to be able to push the water around. I think there might be an...

I replaced the actuator to a BG branded MV a couple of weeks back since it was stuck open and I thought that had solved the problem. Its a on/off vale controlling HW only. Most of the time, it works as expected, opening/closing the valve and switching on the pump etc dictated by the HW stat...

Thanks I found this one (link below) - is that one of the two? What are the advantages/disadvantages? I'd buy from you but unlikely you're in my area. http://www.toolstation.com/shop/Hand+Tools/Plumbers+Tools/Radiator+Valve+Change+Kit/d10/sd210/p31768 Also re bluetack isn't there a...

Many thanks for the replies! I can get to screwfix but I can't see anything on their site. Did a search for "bung" and "stop" and didn't come up with anything

Does anyone know where I can buy bungs for the FE header tank 15mm feed and 22mm expansion pipe? Lots of threads around but all the links are old and now broken. Was hoping I could buy them tomorrow so not having to wait for internet delivery etc.

I need to buy a better ladder than the one I have since its not quite tall enough and also doesn't feel particularly stable when fully extended. (It wobbles/flexes as I get to the higher rungs which scares me a bit). I've read around and I understand that there are 3 duty ratings - I'm sure...

Hi Just to say I "fixed" the problem by leaving the original stopcock in situ and fitting a new 15 stopcock downstream. However, the alakthene pipe part of the original stopcock is weaping very, very slightly. About 1 drop per 2 hours. So to do a proper job in the future I'm thinking of...

So I should be able to get the 20mm olive on the 21mm pipe? Perhaps with lots of wd40 ?

Thanks Spraggo. I guess I'll need to remove the old olive and nut from the pipe? Maybe if I can't fit the 20mm olive over the pipe I should put the 22mm olive (from the other stopcock I have) into the 20mm stopcock ? Or perhaps sand down a bit the pipe ? Sorry for all these seemingly daft...

Unfortunately, there isn't any writing on the bit of the pipe that is visible. Can I reuse the old insert ? And I take it there is no way either a 20mm stopcock or 22mm isolating valve (both of which I've got) will fit ? The diameter is about 21mm. I'm just afraid about how long it will...

Will I need an insert also or is it likely to be strong enough? Or perhaps when I get it off I will see if an insert was previously used?