I fill from well water which is very high in iron. To reduce iron, I typically fill my pool through the skimmer and place 1" chlorine tablets in the skimmer to release the iron and filter it out. Now the only tablets I can find are tri-chlor and I've heard it may not be recommended to put trichlor in the skimmer due to high acidity. If I'm only placing a small amount in the skimmer for purpose of filling the pool, is it still not recommended? Is the acidity bad for the pump/heater?