So we went to buy a proline sand pump. Was broken since day one kept throwing sand into pool. Only one way to backwash yet they say we backwash wrong. Could not find me in system despite much info. No call backs and when I finally did get someone they were rude and not helpful at all. Never will we shop there in Namco Attleborough Ma again!! Gave them lots of money over the years. User's recommendation: Shop elsewhere.