The Intex 530 pump stopped working after the second season. Seems that the impeller malfunctioned, a very common complaint I understand. The impeller appears to be a replaceable part and has easy access. The impeller, however, is not available. I refuse to buy another pump from Intex, they should have that common wearable part available. HERE IS A SOLUTION: I bought a Clear Water Pump from Harbor Freight for $39.00. It has 1 inch inlet and outlets. The impeller is made out of brass and the pump instructions include a replacement part... read full review »