Recent content by brianJ

My Honeywell 3-way motorised value makes a loud rattling noise. If I turn the pump up, the noise increases and if I set the pump to 1 it doesn't rattle so often. This started happening after I replaced my hot water cylindar. Anyone know what the problem may be? Could it be the pump making...

Thought I'd post an update for anyone else who ever gets this problem. Changed the cylindar and water stoped over-flowing. Thanks for all the advice.

Since Thursday, having ran the tests above, the header tank hasn't overflowed. It had been overflowing for months. What have I done?

Test 1 - Turned off C/H and H/W at boiler. Outside overflow slowed to a drip. Water level in C/H header tank did not recede. Water continued to drip slowly. Test 2 - Tied up the ball valve in the H/W & shower header tank. Turned the H/W taps on to drain the water level to below the C/H header...

When the C/H ot H/W is on, the water appears to come from the cold feed at the bottom of the tank (feeding the system) and not the vent pipe or the ball valve. It is like it is rising up from the system. At the moment, the C/H and H/W is on and the overflow pipe outside the house is continually...

My central heating cold feed tank overflows continually; not ball valve; rad nearest pump always needing bleeding; lots of air in the system; when pump on it often streams out; set volume in cold feed to low, cleaned system out with Sentenal but still streams out; This all happened after heating...