C
croxleydog
Hi all from lovely Veliko Tarnovo in Bulgaria. I have a Priti woodburning fire running underfloor heating in the main part of the house, and 5 radiators in the other rooms.It is an open system with a 20 litre top up tank in the upstairs bathroom.When i opened the drain tap in one of the downstairs bathrooms a nasty black liquid came out. As the house is only 4 years old is this normal.As I live here permanently, no antifreeze has been added even with -25c temperatures.Should I try to source something like Fernox and add it to the header tank or just flush with water.Very calcium rich.
Any advice would be gratefully received.
Regards Mike
Any advice would be gratefully received.
Regards Mike