Basically, you need to take the following steps:

1. Find & fix the suction leak, and see if that solves the flow problem.

2. Read the Best Guess page, linked in my blue signature block above.

3. Order a K2006 test kit. (link above).

4. Purchase a local OTO phenol red test kit (yellow / red drops) and use it to test.

5. Make SURE your chlorine is in the OTO *dark yellow* ALL the time. Further adjustments will need to wait for the K2006.

6. Brush your mustard algae spots 2 -3 times per week. Add a gallon of 8.25% bleach each time BEFORE you brush; part in the spa, the rest in the pool.

7. Check your filter cartridges; clean them properly; order spares or replacements as needed.


Good luck!