I sent in a pump a week after the warranty expired and they wanted to charge me 50 bucks when the pump brand new only cost 100. This was to drill out a bolt that broke on the housing when I was taking it off to clean it. Let me know how the chiller goes. I have a CL-650 and was thinking about sending it in just to get it checked out to make sure that everything is working fine. It kicks on quite a bit for 80 gallons total volume with a single 400w on it.