I am not sure where this question should go, but this forum seems liked the best fit.
I have a pool/spa combo. The spa has an independent, dedicated 2 hp pump that is only used for the spa jets. The main filter pump returns water to the spa (which overflows into the pool in normal "pool mode." ). The only way for water to flow in the jets for the spa is to turn on the spa jet pump. I don't know exactly how much water is in the piping, but lets say there is about 75-100 feet from the pump to the spa.
So, for the first few months of my pool, I didn't even think of this issue. Then when I had problems with keeping my FC up, I thought about this "dead Leg" of pipe that doesn't get circulation that often. Could I have an alge bloom in this "dead leg" pipe?
So I shocked the pool with the spa jet on for day, then I set my timer to run the spa pump every day for one hour. My theory is to keep fresh water (with chlorine) circulating in the pipes each day.
Any thoughts on this. Is this a good idea, or overkill?