Hello. I have a pool and spa which are newly constructed and I recently filled the pool and started my pump for the first time. My pump is connected to a sand filter and the return line has a 3 way valve which controls the flow back to the pool and/or spa. The filter has a multi-port valve which controls the flow of water at the filter. I filled the filter with water as well as the pump and connected pipes to/from the pump and filter.
Following the manufacturer's instructions, I primed the pump and ran the pump in order to 'backwash' the filter for a few minutes. I then stopped the pump and set the multi-port valve in the normal 'filter' setting. The intake valves from the spa/pool were set to take water from the spa main drain. The return valve is set to return water to the spa only.
When I run the pump in this 'filter' mode, everything works as I would expect. The filter takes water from the spa and returns it as it should. However, the water in the spa became extremely cloudy at this point. I don't see any sand in the spa, but the water changed from clear to cloudy.
Is this sort of dirt/cloudy water normal when starting up a new sand filter? What would you suggest as a remedy?
Thanks in advance.