I, too, had to laugh at his nonsense! "You're adding 40 lbs of salt a year!"

So?

You need a LOT more salt than that just to run a salt-water generator. You need bags and bags of the 80lb sea salt just to get it high enough. (I don't even know if his calculation of how much salt it is is correct).

BTW, you all know I use bleach or LC pretty much all the time--at least 90% and have for 6 years now. I also have a salt-water test kit (Taylor via Leslies) and the HIGHEST my salt level was, was 1600, after 2 80 lb bags of salt dissolved in it (I was trying to use them to hold my drop in steps down).

His argument about algae and seawater is nonsense--different species of algae. The algae in pools tends to NOT like salt water... Saline is classically antiseptic--that's why "Ocean" is good when you feel a cold coming on--the saline squirted up your sinuses makes them a more hostile environment for viruses and bacteria. Cruise ships make drinking water at sea by desalination--but you can't do it in harbor or in fresh water rivers. That's because deep sea water, desalinated, is clean. That's also why you can eat sushi from fish that never go near fresh water, like tuna and yellowtail, but salmon MUST be smoked first.

His argument about chlorine not killing algae is is truly insane. What chlorine is, is ultimately a broad-spectrum poison. Enough of it will kill anything. Anything. It ain't DDT--it's a fundamental element that's lethally toxic--you can't build a resistance to it, even by evolution.

I hope you had fun trading quips with this poor, ignorant soul, who's just trying to sell pool chems so he can make $$$$$!