I think I have an airlock!

Joined
18 Nov 2007
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Location
Hampshire
Country
United Kingdom
Hi there!

This looks to be a very useful forum, so I'm wondering if someone will be able to help me out a bit.

We moved into our house in August and have had a fiddle with pretty much everything to do with the hot and cold water systems, including the central heating.

I've had a radiator off, replaced a bathroom suite, plumbed in a new kitchen sink and fixed a power shower. It's safe to say the system has been well and truly fiddled with, and to top that it is a hard water area.

Two areas are now annoying me;

The first is an intermittent fault with the hot water system, where over the last 2 weeks we have had a stoppage in the flow of hot water. It will right itself after a short break, but will pop up a few days later, right at the most inconvenient moment.

The second is that 2 of the 9 radiators don't work. I don't know if they have ever worked prior to the fiddling, but they don't work despite tweaking all the appropriate valves.

I've been told that the problem bears all the hallmarks of and airlock. Is this right, and if so, what can I do about it?

From looking at the forum, I've seen people suggest connecting the cold feed from a washing machine to the hot feed, and flush the system through. Another suggestion was to drain the hot water cylinder whilst keeping the hot taps on. One other suggestion was to shut off the water tank in the attic and connect a cold water hosepipe directly to the hot water cylinder, open up the hot taps and flush the system through that way.

Can anyone corroberate these ideas, or suggest anything else I can try? We have a Boulter Camaray Compact oil burner which has just been serviced, and though we've been advised to replace it in a couple of years, it was given a clean bill of health.

Can you help? thanks!
 
connecting the cold feed from a washing machine to the hot feed, and flush the system through.
Try that.

Shut all other rads to make the 2 go - if nogo check trv's, see faq.
 
Radiators now work a treat, thanks!

As regards the suggestion for clearing the airlock, are there any things I need to look out for/do apart from connecting the cold feed to the hot feed? Aside from opening all the hot taps (I assume this is correct?)

Ta!
 

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