We purchased the index pool this summer and the 6 way valve on the filter on top froze after one months use. I filed for a replacement part filled out there form and sent with my receipt. I checked to see if it had been sent and found it's on hold because part is out of stock. I called customer service (Hong Kong) and was told nothing can be done cause it's out of stock. And your season is almost over anyway. I asked if there was a distributor in the US and was told the part comes from California I asked for number to them and was told, we don't have a number and they are out as well. I guess this IS one of those buyer beware.