I closed my pool last year by adding no additional chemicals other than raising the chlorine level and then covering it with the mesh cover. I looked in the pool maybe two weeks ago and the water was clear but I know there is some trash in there. Fast forward to today and when I took a look the water its green and i cant see to the bottom. I believe the water temperature has rose significantly over the past week or so and the water is now above 70.
Not really knowing what to do I thought about buying this kit. http://www.intheswim.com/Pool-Chemic...hlorine-Shock/
Should I purchase the kit as there looks to be some stuff starting to form on the pool walls or should I just remove the cover, clean as much of the debris out as possible and throw the bleach to it?
Also, It's a 27k gallon pool with a DE filter, how much DE do I put into the skimmer? I heard 8 pounds. I know I'm going to need some calcium hardner as well since I lost water from some draining and rain over the winter.
Thanks in advance!