So this has happened a few times recently. The rest of the pool is OK but the spa turns green overnight. I made sure filter baskets were clean and test results were good. Ran the filter 24 hours and the problem went away.
We went away for Spring break. Came back after ten days. Everything "looks" great. FC was down to 1 but CC was 0 (my target is 5) and pH is 7.8. I put in a jug of bleach. Next morning the spa is greeen again. ONLY the spa. The pool looks fine.
The results this morning. SPA: FC 1.5, CC 0,, pH 7.8
Pool: FC 4.5, CC 0, pH 7.8, tA 60.
We're having lots of spring stuff fall into the pool. Could that be dyeing the spa??
Now that it's warmer, how many hours should I be running the filter?
What's going on?
Thanks for any help.