No hot water after bleeding CH pump

[spooky_b329]

Central heating is taking its time, I assume hot water has priority? CH pump is as hot as the pipework, almost too hot to touch...is that normal?

 

[hi-spec plumbing heating]

is the pipe hot both sides if so ok it's running

 

[spooky_b329]

Yep pipes are hot both sides and rads are warming...I've partly close the valves on two rads as they are getting quite warm but others further away are still cool...lockshield valves and the rads I removed are set to their original positions.

 

[hi-spec plumbing heating]

so your getting there

 

[spooky_b329]

Ok all well apart from one rad which is struggling to get warm, was fine a couple of days ago. Have closed of other rads which seems to be helping but have also noticed I have a very small leak from the rad, about 1" from the valve. Over the last couple of days it looks like it has leaked a few teaspoons worth, is this likely to seal itself as the sludge gets moved around? Any quick fixes? Don't really fancy replacing the rad.

 

[spooky_b329]

Also, when I add the inhibitor do I just dump it in the tank in the loft or will this take ages for it to circulate?

 

[hi-spec plumbing heating]

if the tank is full the just putting it in it will just sit in the tank.
that should of been put in when refilling.

 

[hi-spec plumbing heating]

is the leak on the actual rad or pipework

 

[spooky_b329]

on the rad, looks like a spot of rust on the underside. Not leaking at all at the moment.

 

[spooky_b329]

I've got to drain again in a week or two so I can relocate a radiator so inhibitor can go in then unless you think its important to have it asap?

 

[hi-spec plumbing heating]

that the rust in the bottom of your rad.
i would shut that rad off or replace as that will blow in the end. and it will be when your in bed or out.

 

[hi-spec plumbing heating]

why have you got to drain again in a week or two ?

 

[spooky_b329]

We are having a window knocked into a door so need to relocate the rad that is under the window. Got someone from my family coming to help do it.

I nearly got around all this by getting some of those rubber bungs that creates an airlock, but I took them back as the feed pipe from my tank as two ridges in it which prevent the bungs from sealing properly.

 

[hi-spec plumbing heating]

i use these if that happens.

http://www.screwfix.com/app/sfd/cat...HZOSFFI?productId=81203&imageNo=null&ts=31295

but if you do drain i would stick one of these near your pump so you can bleed it.


http://www.screwfix.com/search.do;j...CSTHZOSFFQ?_dyncharset=UTF-8&fh_search=19155#

 

[spooky_b329]

So those drain plugs go in the F+E tank just like the conical ones I got for the same price from B&Q? And they'll seal against the two ridges?

I spose one there is an airlock they will hold tight whilst we mess around extending the pipework?