We have a new pool. Its saltwater. The water is clear but there is brown gunk on the bottom. It has been like this for weeks. When we try to vaccum it just runs back thru filter into pool. We have an intex pool from walmart. We brought water sample to pool place. They said it was good. Please help!!!!
Brown junk on bottom
- Thread starter Lild1524
- Start date
That looks like algae to me. Have you read Pool School yet? Do you have a good test kit so you can test yourslef so you won't be told *You're numbers are good*? Visually, there is something wrong with your pool and it looks to me that a shock process (found in Pool School) is in the near future for you and your pool. 
Please refer to my signature link for a TF-100 test kit.
Please refer to my signature link for a TF-100 test kit.