OK....in a few days I hope to be refilling my open vent heat only central heating system.
It has one zone valve.
It has been off and drained a lot longer than anticipated.
I have manually flushed out nearly all the radiators...using a hose with good pressure.
I am fitting a filter tomorrow hopefully if it arrives in the post.
I just wanted to cross check the best method of refilling.
Stop cock is tied off currently.
The drain valve is at the lowest point of the system...under the floor actually.
I assume the steps are to:
1) let it refill from the tank
2) Ensure the zone valve is at manual
2) Have the last radiator open and bleeding, until it splutters. Then do each radiator in turn working up.
My secondary questions are:
Should I do a straight refill and be done? Or do multiple refills have to be done as a system wide flush, even if I have flushed each rad?
Is a chemical cleaner really required?
If I have flushed each radiator and the water coming out is pretty much clear....is a chemical cleaner counter productive as I am just potentially encouraging more crud to swilling around the system, which only requires a further drain.
Obviously I will be adding inhibitor as I fill it....I just wanted to know the best method.
Many Thanks.
It has one zone valve.
It has been off and drained a lot longer than anticipated.
I have manually flushed out nearly all the radiators...using a hose with good pressure.
I am fitting a filter tomorrow hopefully if it arrives in the post.
I just wanted to cross check the best method of refilling.
Stop cock is tied off currently.
The drain valve is at the lowest point of the system...under the floor actually.
I assume the steps are to:
1) let it refill from the tank
2) Ensure the zone valve is at manual
2) Have the last radiator open and bleeding, until it splutters. Then do each radiator in turn working up.
My secondary questions are:
Should I do a straight refill and be done? Or do multiple refills have to be done as a system wide flush, even if I have flushed each rad?
Is a chemical cleaner really required?
If I have flushed each radiator and the water coming out is pretty much clear....is a chemical cleaner counter productive as I am just potentially encouraging more crud to swilling around the system, which only requires a further drain.
Obviously I will be adding inhibitor as I fill it....I just wanted to know the best method.
Many Thanks.
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