Inhibitor adding

phil22

OK I have a closed system with Teledyne Lars with a feeder how do I add inhibitor to the existing system by draining a little bit out should I put it in the feeder or do I add it on the bypass valve above the expansion tank and take the lid off any suggestions I have baseboard Copper heating with fence there’s no way I can attach anything to the bleeder valves there they’re just too small and in really bad locations any help would be appreciated

hot_rod

It comes in a Resol cans with a hose connection. You can connect to the valve at the bottom of the Caleffibsir separator. 12 oz can does 35 gallons of system fluid

phil22

Thanks for your reply very much but I bought the liquid 1liter. Bottle fernox f1 can I pour it down the caleiffi air separator if I take the lid.off
If I buy the resol can Do you just unscrew the cap and screw on the hose attachment and just spray it do you have to shut off any of the valves before and after it or let some water out of the boiler

hot_rod

you will need to drop pressure and drain a pint or so to pour in, possibly a repurge. The spray can came just squirt in without draining or lowering pressure. 12 ounces will not be noticed in static pressure