Title says it all really

If I leave them for more than a couple of weeks then a couple seem half full (or empty)

Can anyone help me?

I know it's not alot to go on

_________________
If you feel you have benefited from the Free advice given on the Forum, Please consider making a donation to UHM's Nominated charity, read all about it and donate here :

http://www.ultimatehandyman.co.uk/forum1/donnas-dream-house-charity-t52110.html

Give us some details about your system. Do you have a combi or conventional boiler. Is it a sealed system with a pressure gauge, or do you have a small tank in the loft? Do you have a hot water cylinder.
The more info you can give us the better.

No pressure gauge
It's a hot water tank with an immersion.
The boiler is a BAXI BERMUDA BACK BOILER, combi I think
It's either on or off, i.e. no room thermostat

_________________
If you feel you have benefited from the Free advice given on the Forum, Please consider making a donation to UHM's Nominated charity, read all about it and donate here :

http://www.ultimatehandyman.co.uk/forum1/donnas-dream-house-charity-t52110.html

Do you know how long it's been installed? (Pipework/ boiler etc?)

_________________
.

If you feel you have benefited from the Free advice given on the Forum, Please consider making a donation to UHM's Nominated charity, read all about it and donate here :

http://www.donnasdreamhouse.co.uk/


__________________________________
__________________________________

Verwood Handyman
I Know it says I'm On-line, but I might have just left myself logged in, whilst I'm out....

20/30 years i expect, It wouldn't surprise me if it was the original one from when the council built the house!

_________________
If you feel you have benefited from the Free advice given on the Forum, Please consider making a donation to UHM's Nominated charity, read all about it and donate here :

http://www.ultimatehandyman.co.uk/forum1/donnas-dream-house-charity-t52110.html

Meant to ask...how long have you been bleeding the rads weekly?

Any sign of pinholing in the rads or pipework??

_________________
.

If you feel you have benefited from the Free advice given on the Forum, Please consider making a donation to UHM's Nominated charity, read all about it and donate here :

http://www.donnasdreamhouse.co.uk/


__________________________________
__________________________________

Verwood Handyman
I Know it says I'm On-line, but I might have just left myself logged in, whilst I'm out....

I've been in the house three years this summer so the best part of two years. I only put the heating on in october/november and its off by feb, march at the latest, Cant stand the heat!

The rads look fine as much as i can see - not rusting or leaks anywhere. Cant see the pipes much tho.

_________________
If you feel you have benefited from the Free advice given on the Forum, Please consider making a donation to UHM's Nominated charity, read all about it and donate here :

http://www.ultimatehandyman.co.uk/forum1/donnas-dream-house-charity-t52110.html

When you bleed the rads do you get a slightly stinky bad egg/struck match smell..

Have you checked all the rad valves for weeps (System cold) could be verrrry minor weeps..

Sorry for all the questions, but it's looking like corrosion ...the more info you give the better..

_________________
.

If you feel you have benefited from the Free advice given on the Forum, Please consider making a donation to UHM's Nominated charity, read all about it and donate here :

http://www.donnasdreamhouse.co.uk/


__________________________________
__________________________________

Verwood Handyman
I Know it says I'm On-line, but I might have just left myself logged in, whilst I'm out....

No smell, I haven't checked the system cold yet, I'll try that tomorrow before i leave for work. Should i just nip up all the fittings as a precaution?

_________________
If you feel you have benefited from the Free advice given on the Forum, Please consider making a donation to UHM's Nominated charity, read all about it and donate here :

http://www.ultimatehandyman.co.uk/forum1/donnas-dream-house-charity-t52110.html

I wouldn't..may be that the copper pipes are corroded, a little nip could (Worst case) end up in a minor flood...

Bit more investigation required yet..

May be an idea to drain off a little from your drain off point, and see what sort of state the water is in..fairly sludged up would be my guess...

_________________
.

If you feel you have benefited from the Free advice given on the Forum, Please consider making a donation to UHM's Nominated charity, read all about it and donate here :

http://www.donnasdreamhouse.co.uk/


__________________________________
__________________________________

Verwood Handyman
I Know it says I'm On-line, but I might have just left myself logged in, whilst I'm out....

point taken! I'll have a look,

_________________
If you feel you have benefited from the Free advice given on the Forum, Please consider making a donation to UHM's Nominated charity, read all about it and donate here :

http://www.ultimatehandyman.co.uk/forum1/donnas-dream-house-charity-t52110.html

As you have a back boiler (not a combi) the pump is probably on the return pipe which means that most of the system is under negative pressure.

It's important that you only bleed the rads with the heating off checking for the smell as WO says, if you think you can smell it try and light it and see if it pops!

The gas could either be hydrogen caused by corrosion or be due to micro leaks on the fittings allowing air to be sucked in.

_________________
As always help on here is free, however if you think you have saved a decent sum of money why not click the link to find out about the charity we're currently supporting? A couple of quid makes a real difference.

donnas-dream-house-charity-t52110.html

System could be sucking air in

_________________
Dave

www.drlgas.co.uk

Also does the old backboiler make any kettling or banging noise when it has fired up for a while? Also check in the loft to see if the water is warm in the small (F&E) tank. Have you noticed if the tank has overflowed out the overflow pipe?

i concur

cold feed or near cold feed blocked or restricted, pump sucking in air from header tank, had one like this 4 weeks ago after a apparent "power flush" from the rad next to the boiler

go up in to the attic and the header tank was sucking more than a cheep whore