Bryna

With bromine I used ph up or down- vinegar when turned green. Chlorine only ph down.

My hot tub was drained and move due to redoing deck. It was out of service for 4 months. I refilled, used bromine. Water turned green and large yellowish flakes. I used spa purge for the lines 24 hours before draining. My husband used a wet vac to drain. I bought a new filter , switched to chlorine, and refilled. The water is clear but there is still algae floating and in the filter. Please advise. I’m at a loss. Thank you Bonnie Chance