Hello, Im feeling deflated here and hoped to find some help here. I purchased a pool and deck from someone, the pool was a year old. It has a sand filter and she replaced the sand with media balls. She told me that she didnt use any chemicals and that was the benefit of the medial, I know she didnt have a santized pool. Ive moved on and decided I was going to use chemicals and maybe next year look in to getting the Frog system. My concern is the people I hired to put up my pool were a nightmare and still waiting for my deck after 3 weeks. They hooked the pump and filter up and that day the pump was leaking, he told me no problem I could still run it, they havent returned in 3 weeks and both the pump and filter is leaking everywhere. This week I noticed that the return in the pool doesnt feel like its pumping hardly at all. A friend was over a couple days ago and said something was wrong that it should be pumping more. What could be the problem, I have no knowledge about this and relied totally on them (what a disappointment). Is something wrong with this pump? If you have any insight, please let me know. Thanks