Im sorry, my filter is a Hayward S166T sand filter and the pump is a power-flo LX 1HP 60gpm. Also, any suggestions on the route to go on getting that CC down so I can start keeping FC in the pool? I have heard of people using plain unscented bleach because it doesnt have any by products like cal-hypo, trichlor or dichlor. If that is the route to go, what would be the break point for a 13,500 pool? or where do I find that calculation?