Turn the darn thing off!
I can’t believe it – all the people I’ve asked, all the research I’ve done even pool companies and people who install water features. I’ve heard so many remedies and not one person said, just turn it off!
Our power was out for 2 days this week because of bad storms. Both days were in the 60’s and sunny. 48 hours without water in the fountain and… no more algae! When the power came back on and the water started flowing it was beautiful and crystal clear.
Easy enough. When the algae gets bad, I’ll turn the fountain off!