Quote Originally Posted by usmarinemike View Post
Who comes up with this crap?
The same sort of people that sell Lipitor instead of generic statins that work better for 1/4 the cost. I'm guessing you can think of a few similar examples that made it through the US Navy or Marine Corps supply chain. Deception, deliberate product ignorance, and outright lying are fundamental qualities of marketing in US society. The only thing unique about what's happening in the pool industry, is that I know enough about pools and pool chemicals to recognize most of it. With medical products or consumer goods, I can only recognize a little bit of it.

Could this be the reason that although my water is green, it's not swampy and I can see all the way through it? My algae is just really fine?
If it was green WITHOUT algae, it would probably be iron at low pH. But, green with algae on the sides, is probably still algae. If you've got a white five gallon bucket, you can test and see:

1. Fill a CLEAN white 5 gallon bucket to pool water, to within 6" of the top.
2. Add 1/2 cup of baking soda, and mix.
3. Add 2 cups of 6% bleach, and mix.
4. Cover and wait 24 hours
5. If you have brown or khaki sediment, it was algae. Red-brown or orange sediment, it was iron. Something else - tell us about it.