Page 1 of 1
How long should / can you leave cleaning chemicals in a central heating system before draining?
Posted: June 9th, 2017, 3:46 pm
by RPM
As per the title really, is there a limit time wise?
Re: How long should / can you leave cleaning chemicals in a central heating system before draining?
Posted: June 9th, 2017, 9:39 pm
by Croppie
Depends on the manufacturer, there's usually the info required on the side of the bottle but it's usually at least a couple of days and no more than a week.....
Re: How long should / can you leave cleaning chemicals in a central heating system before draining?
Posted: June 10th, 2017, 4:28 am
by gallego1968
It does all depends on what it say's on the tin but usually a few days.
Re: How long should / can you leave cleaning chemicals in a central heating system before draining?
Posted: June 17th, 2017, 10:35 pm
by joni os
I will admit to leaving X800 in a system for 3 weeks and usually for at lest 3 days prior to flushing. The 3 week system did have a zombie boiler which is still going strong 9 years later.
Re: How long should / can you leave cleaning chemicals in a central heating system before draining?
Posted: June 18th, 2017, 12:02 am
by Masood
Adey say their MC3 will become inactive after a week or so. I seem to remember Fernox saying something similar. I wouldn't want to leave FX2 in for even a couple of days. It is the most aggressive of all of them in my experience...