Thanks for the reply I will give that a try.
It has a header tank in the loft and as I have very limited plumbing skills, could you recommend one which is VERY easy to use, ie pour it in and walk away, job-done style?
Might be worth checking the rad valves as one of them may be leaking un-noticed and the water running down the pipe either onto the carpet or below the floor.
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local