. . . membership upgraded.

Get a cheap OTO/phenol red drops kit and 20 gallons of PLAIN 8% bleach per 10k gal of pool water and a gallon of distilled (NOT: spring, bottled, artesian, etc => distilled) water. You should be able to get all these at Walmart.

1. Retest pH using 1/2 pool water and 1/2 distilled water. If the pH is between 7 & 8, leave it, the calcium, and the alkalinity levels alone for now. If the pH is less than 7 or more than 8, post the results you got AND tell us what sort of pool you have.

2. Make sure your filter is ON 24/7. If you have a DE filter, put it on bypass or recirculate.

3. Unless you have a DE filter, odds are against you having 'pretty' water by July 4th. Not impossible, but not likely either.

4. Till the algae is dead, there are ONLY TWO things you should focus on: (1) maintaining a pH level that won't hurt your pool and (2) killing the algae. Forget about everything else.

5. You NEED the K2006 Mom mentioned. If your CYA level is really 70 ppm, you may need as much as 35 ppm of chlorine to kill the algae. You can only measure and control those levels with a K2006 (or kits that are even more expensive!)



Concrete or vinyl pool?

If it's concrete,
+ adding bleach at the rate of 4 gallons every 2 hours.
+ continue till the algae turns gray / brown OR until you reach an ORANGE (off-scale) OTO test result.

If it's vinyl
+ adding bleach at the rate of 2 gallons every 2 hours.
+ continue till the algae turns gray / brown OR until you reach an orange-tinted yellow (off-scale) OTO test result.