Header Tank Gunge
Our central heating system has a separate header tank for the heating side of the system. I had a look in said tank and found to my horror that its has loads of slimy gunge floating in it and more stuff on the bottom of the tank. I'm concerned it could easily block the outlet so I intend to clean out the tank and check that the output pipe is clear.
Q:
1) How does one prevent this gunge accumulating again in the future? The system has always had corrosion inhibitor added BTW.2) The output pipe is a few cm above the bottom of the tank but there's no filter or other mechanism to reduce the risk of blockage - is there a suitable device to help?
3) The ballcock arm has been set to give only about 6cm of water depth in the tank. Is this setting OK?