I've had the pool for 10 years and only used the water test once, I tested my water, brought my sample to a pool dealer, they sold me $150.00 worth of chemicals for my pool. All that chemicals did not do anything...I basically use Algaecide, shock and chorine granules, and sometimes "quick clear" for clarity, and for nine years have had a beautiful blue watered pool. But, this year, We've had two weeks of continuous rain, and plus with me leaving for a week in the middle of it...boom!! have algae problem. So, I plan on going with the algaecide and shock, but just wanted to know how much to use of the shock and if you could ever use too much shock???
Thanks
Barry