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I just installed a Hayward 500 watt Universal ColorLogic White LED. I can't speak to lifetime, but it puts out great light and seemed well built. Why do they call a White LED Color Logic? Seems illogical to me.

My 12 mil cover has lasted two years. I covered it the first summer, I didn't cover it this year. It is getting brittle and I have been thinking it may not last through this year. Thanks for the tip on this bargain. I will need to do some "trimming" but it's much cheaper than a smaller...

The traditional system for removing metallic stains is to add ascorbic acid to remove the stain from the pool surface and then add MetalMagic or a similar chemical to remove the metal from the water. While reading about MetalMagic the company says to try their test (found here...

I am still fighting the battle. It seems quite clear now that I am fighting algae, probably mustard. I have been trying to keep FC above the 18.2 ppm mustard shock level with CYA of 30, but life has gotten in the way a couple of times and it has slipped as low as 16. I have been testing FC...

This sounds very much like my problem, see http://www.troublefreepool.com/threads/87909-Yellow-Green-Dust. The material is over all of the sides and bottom including the built in steps with no noticeable lighter and heavier areas. I am in central Florida on the Gulf side. I have several large...

The filter is a Hayward C9002 cartridge filter which the label says takes a 90 sq ft cartridge. The pump is a 1 HP Flotec which was replaced just before I purchased the house. The filter housing also appears quite new and the old one was left behind, but I do not know exactly how new. I have...

The not disappearing was in response to a post (somewhere here) about dead algae that I may have misunderstood. I interpreted it to mean disappearing as soon as disturbed. I don't know about previous slams but the pool was vacuumed yesterday afternoon and above shock level all night. There was...

In July 2014 I bought a house in Spring Hill Florida (same latitude as Orlando but 9 miles from Gulf) with a pool (my first). Since then I have had a recurring problem with yellow-green "dust" on the pool floor and sides. I call it dust since it swirls up like dust when gently brushed. It does...