You can get test kits for inhibitor to tell you if you have too much or too little. Reading up, if you have too much it can apparently affect rubber fittings (I guess mechanical valves and pump seals?).
Might be easier to just drain the lot and refill with a known good quantity, but beware air locks and the like.
You can get test kits for inhibitor to tell you if you have too much or too little. Reading up, if you have too much it can apparently affect rubber fittings (I guess mechanical valves and pump seals?).
Might be easier to just drain the lot and refill with a known good quantity, but beware air locks and the like.