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Quick question for anyone familiar with this product. This is trichlor but I don't believe it is 90% as it is powder form and the msds has it at 67%. I know with the 90% pucks 10 ppm chlorine also adds 6 ppm CYA. Does anyone know how much CYA is added with this product? Thanks in advance.

I continue to have small air bubbles in the pump basket. I have checked about everything there is to check including the lid/gasket, plugs, all valves/gaskets, connections etc. Interestingly, there is no air in the returns to the pool. It appears as if the bubbles are emanating from the...

Happy New Year to everyone. I broke the knob off my Jandy valve while removing it (one of my skimmers is not pulling any water unless I close off the main drain and the other skimmer). The broken piece of the knob is stuck down inside the diverter assembly so I need a new assembly. My pump...

I recently replaced my filter and pump and have noticed air bubbles (particularly at pump start up) in my return lines into the pool. This obviously implies a suction side leak which I have had before and was previously able to locate and seal a connection. This time, the strange thing is that...

I finally got around to replacing my filter and pump today. I have a 20,000 gallon in-ground pool/spa setup that previously had a 2 hp whisperflo pump for the pool and a 2 hp whisperflo pump for the spa. My old filter was a 60 sf de (Pentair variety). The operating pressure typically stayed...

I am replacing my old DE filter and am thinking maybe a sand filter. I have a in-ground gunite 20,000 gallon pool/spa combo and my existing DE filter is a FNS60. I have two 2 hp WhisperFlo pumps (one is dedicated to the spa). The main pump that runs with the pool is shot but the spa pump is...