what part is this leaking next to circulation pump

P_Cash

Hi,

There is one of these brass connections on either side of the ciruclation pump, is the bit I'm pointing at a valve of some sort?

Reason I ask, is that it is leaking nice drip in to a bucket, what has failed and is it an easy fix?

what tool is used if this is a valve?

10-10-20

That is the pump isolation valve.

https://www.plumbingproducts.ie/199-pump-valves-ireland

10-10-20

Just need a plumber's wrench and maybe a bit of ptfe tape to replace the whole valve.

P_Cash

Thanks, what tool is used to turn the valve even, I assume its just a ball valve inside. If i could turn it off on the other side it may help with changing it.

Escapees

Just a large flat head screwdriver!

Wearb

Changing the valve can be tricky enough if you haven't done it before.

The wheel head valves are much better, but not the exact same length.

stephenmarr

the heating system needs to be drained down first.

10-10-20

https://www.boards.ie/discussion/comment/123412882#Comment_123412882

That's the difficult part to sell, that's why I left it out of my response. 😝 I reckon it can be done without fully draining about 50% of the time.

stephenmarr

https://www.boards.ie/discussion/comment/123413058#Comment_123413058

be prepared to get wet.

monseiur

Hire (or borrow) a pipe freezing kit for a day, freeze both pipes at the same time. Be sure to have all the required fittings & tools etc. to hand. Don't forget to isolate power to pump at consumer unit/fuse board to be on the same side.

monseiur

o

https://www.boards.ie/discussion/comment/123415730#Comment_123415730

oops…typo error - Last two words should read '' safe side''

P_Cash

Thanks all, managed to buy the same fitting on the day, replaced it, managed to turn off the other side only to see it leaking away after I turned it back on again so ended up changing both valves on either side of the pump. What I dont understand that while i turned all other valves off, from live feed, compression tank etc, after I switched all back on I assumed I would have to bleed any air out. so far I am seeing no signs of an airlock.

obviously this time of year I havent all the rads on, but perhaps Ill need to bleed it somewhere

Escapees

If it's two story, try bleeding some of the heaters upstairs with the pump/system not running.