Your system is full of sludge.Remember if you remove any rads and the water is dirty it WILL STAIN any carpets it gets on.Pressure flushing is best but it costs.... ask at least 4 company's for a quote not an estimate.
chris(ex heating engineer 30 years)
November 2008
Automatic Answer
We may have found other answers which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix plumbing.