couple of other questions...I'm assuming that I can't reuse the spider valve that is currently on mine now since its a top mount now and the tr60 is a side mount. Which valve do I get? there are a couple of options by pentair. Also, I'm hoping that I can just use the pump I currently have since it is working fine and just buy the filter. Lastly, I can do plumbing and hopefully with your help I can purchase the correct parts. Is there any reason to hire this out to a professional? Thanks