I am new to this forum but have been a pool owner for the last 10 years. I am currently having a problem that I never seen before and need some assistance.
About two weeks ago, shortly after I vacuumed the pool, I noticed what seemed to be dirt floating around the bottom of the pool. I would vacuum it again, making sure every square inch of the pool bottom was touched. Again, a little while later, it looked like dirt floating on the bottom of the pool. This went on for several days. I would vacuum the pool maybe 3 or 4 times a day and would still end up with the same result.
I spoke to my neighbor who is also a pool owner and he stated that he had the same problem and it turned out to be black algae. I purchased black algae remover and before adding it, made sure that all the readings were in line. I added the correct amount it to the pool water and almost immediately the water began to foam. I have had to use algae remover in the past so I knew this was some what normal. After about a day, I vacuumed the pool and the bottom appeared to be staying clean. The next morning I went out and was amazed that the bottom of the pool was still clean. It appeared that my problem was solved. However, after I turned on the filter, I checked the skimmer basket and it was loaded with flies, bees, etc. I also noticed that there were a large amount of dead bugs floating in the pool. I checked all the chemicals and everything seemed to be OK. I have a cartridge filter, so I removed the filter and cleaned in really good. I then shocked the pool.
It has been about a week since I put in the algaecide and the pool water is still foaming and I am removing a large number of dead bugs from the skimmer and on top of the water each day. Any help you can provide would be greatly appreciated.
I have a 12 x 21 AG oval that is 52" deep, with a 1.5 HP cartridge filter and in line chlorinator.