Multiple species of Algae and runaway pH

[Lucien]

I have a 24 foot (round) above-ground that holds circa 16,000 gallons. Just now though it has a major algae bloom (deep green) and I can't
get my pH down anymore. It is so high (pH) now that it no longer registers on my test-strips and I'm thinking that maybe I should forget trying to balance the chemistry for now and just go straight to adding 4 cups (two pounds) of cal-hypo today, and another 4 cups tomorrow, give it a vac, and then add sodium bisulfate once I can see the bottom of the pool again. The last time I added pH down it did absolutely nothing.

 

[PoolStored]

First thing to do is get one of the TFP recommended test kits. Reliable test is important and strips just don't cut it. Link-->Test Kits Compared

I would add 3ppm of liquid chlorine per day until your kit arrives. You need a kit to follow the SLAM process to clear the pool of algae.

When you get your kit post up a full set of numbers and start the SLAM process to clear the algae. Link-->SLAM Process

We recommend you use muriatic acid to lower pH if needed, after you get results with your kit.