Can't you just pour the inhibitor directly into the outlet to the radiator system, rather than adding it to the water in the F&E tank. You would only need a funnel and hose. This would ensure all the inhibitor went into the radiators.
im not a plumber but i got a better idea what if u just drained the f&e tank just down enough to a little bit of water in tank then add the inhibitor then add water then just drain more water out of system while the ball valve fills the tank then stop draining the system or bleeding the rads
Would you be able to do this with a break tank that pressurises a heating system via a pump. I can't find any instructions on the sentinel inhibitor or any other inhibitor that says it can be done this way or would it damage the pump somehow?
A bit late but for anyone else wondering yes you leave the inhibitor in the system. This is especially important in an open vented system like this one in the video since it has a supply or oxygen to replace the oxygen given up to the radiators as corrosion and inhibitor is supposed to slow that process down.
