I assume all water heater sediment is calcium carbonate. Other than flushing the tank heater regularly, is there anything that can be done to prevent the sediment from forming? Would a higher temp setting on the control along with a tempering valve help? I think I read Dunbar or NHMaster post that once, but I dont remember the reason.
A good friend of mine/GC is having hot water issues. Running out of hot after 2 showers with a 75 gallon AO Smith, and a gravity re-circ that doesnt function properly.
I've almost got him talked into a tankless.