Yup, it isn't elegant, basically keep hammering the algae with chlorine until it clears up :-)
I opened very late this summer and my pool was dark green, couple types of water bugs, thriving ecoculture. I ran it up to and kept it at around 20 ppm and it was clear in 3 days. The only adjustment I made was to bring down my PH level as it was high. I balanced my water after the water was clear and chlorine levels down to normal levels.
Bookmarks