The bottles of inhibitor in Wickes are IIRC, 1 bottle per 20l of water in the system. How on earth do you figure out the capacity of your radiators & pipes? Is there some sort of chart for guessing based on radiator size?
a
If you look at your radiator manufacturer's web site you will find volume of water in the data sheets. Sometimes it is expressed as litres per section for a given height and you have to calculate.
You can then guesstimate the volume in the pipes by taking the length and calculating the volume as cylinders - pi x radius^2 x length.
Then add on about 10 litres for boiler, cylinder etc.
You don't have to be that accurate - overdosing within reason doesn't matter. Any inhibitor is a tiny fraction of the cost of rediator replacement.
At one time it was sold in gallon or 5 litre cans. I just used one of those. Nothing has rusted out so far. ;-)
In article , al writes
Own brand stuff? The branded stuff I've seen seems packaged to suit one carton/bottle/container per 'typical' system. Unless you have a particularly large system I wouldn't expect it to be much over 100 litres, so 5 bottles should suit. If that comes to more than 15quid, buy the branded stuff as you should be able to get it for that.
Fernox MB-1 Application and Dosage The recommended ?in-use? concentration of the product is 4%. One 4 litre pack will treat an average 3 to 4 bedroom house. The product can be introduced via the feed and expansion tank or injected directly into the system via a radiator or filling loop.
Sentinel X100 Dosage: Sentinel X100 should be dosed at 1% of system volume, i.e., 1 litre per
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