Sorry mas. I know you are trying to help me out and I appreciate it. So here goes. I want to keep my electric bill down of course, but I have to make a choice and want to try to keep from buying a whole new set up. I have a 33' round pool. I have the opportunity to buy a 300 lb sand filter listed above for $200 that comes with that pump that is attached. Not the gold one, the black one. It is a 1 HP, but I have not layed my eyes on it and the guy doesn't know what kind of pump it is. It came off an inground pool. I also have a Hayward s210t filter that I don't have to buy or a dreamline s190tscp that I can use. I am going to have 2 returns and the pump is going to be at ground level while the pool will be buried 1 foot. I plan on running 2" hard pipe unless you guys tell me it would be better for me to run 1 1/2. One of my questions was should I just spend the $200 I was going to spend on the larger filter and get a 2 speed pump and use one of my existing filters or should I buy the larger filter and use the 1 HP pumps I have? Energy efficiency wise and to keep the pool sparkling. The equipment will be located directly beside the pool. I don't have any information on the pumps, just the motors. I know that is a key piece of missing information. I wish I could find out, but the stickers are gone off both of them. One I know is a dynamo, but that is all I know. I think I covered everything.