When we first moved into our house and got started with the pool the pump was flowing quite strongly. Lately it has decreased suction significantly. The Baquapure superflow workhorse catch basket is clear. We have taken the extremely large cartridge out and cleaned it very well. It seemed to pick up some suction, but really not much. I am out there everyday working and maintaining it because I know that the filter isn't going to be able to really do a decent job. The chemicals are perfectly balanced (thanks to the BBB method!), and I routinely use the net to keep out large debris. The major problem: the previous home owners left NO owners manuals. I have googled the pump and I can only find the owners manual for a sand filter. Please, please, please.... can someone help?