BBB has been working GREAT for me till the last few weeks. The water temp is constantly in the lower 90's as much as 94. I guess that is what I get living in the "deep" south! I have been checking the water myself and have also been bringing a sample to the pool store to see if my results are accurate. The latest...
Phosphates are high, can't remember the number
I am having green patches on the bottom which eventually cover the entire bottom in a couple days. I have added more bleach to shock but it doesn't seem to help. My concern is my sand filter...is it working properly? When I hook up my vacuum to the skimmer it does a great job of cleaning the bottom. As soon as I remove the hose from the skimmer I notice green water coming into the pool via the jets. While the vacuum is attached I don't notice this but as soon as I remove it, maybe cause it gets better water flow into the filter, green comes out. Then I will backwash (2 minutes) and rinse (1 minute), which I do very often, but I still notice a little green coming out the jets then it seems clear. Last evening I removed the multi-port direction valve from my sand filter to see what is going on. The lever that you move to backwash, rinse, filter etc seems to barley move the bottom plate (when you press it down to change positions) that touches the gasket to direct the water flow. I am not sure if the spring pressure is proper cause you can't really see any difference when you push down the lever. My first thought was that the water is not being filtered properly, almost like it is recirculating. I stuck my hand in the filter and looked at the sand. It is perfectly white, looks good. I did change the sand back in April, 300#'s which is what is recommended. I am taking the multi-port direction valve of the sand filter to the pool store today to see what they say.
Sorry for the lengthy note. I actually have been up since 2am with this on my mind. I want my crystal clear water back!!!