

Cloudy Water
Had our hot tub delivered last week and just been away for two days! After returning, the water was cloudy like the first image (the yellow line is reflection from brickwork). I tested the water and the chlorine was low. It was also foaming when the jets are on.
I swapped out for a new file, put in some chlorine, ph minus and non shock chlorine granules. It appears to have cleared up slightly after 2 hours. My plan was to leave the tub open, drop the temp to 30 degrees and leave it on filtering overnight? Do you think the water can be saved or refill needed?