Quote Originally Posted by fchapma View Post
I am in the process of building my first pool and was hoping to gather a little more information on UV as an alternative cleaning solution. I understand that you must supplement the cleaning with 15 to 20% chlorine.
I'm curious whose literature you've been reading. It's possible to use UV as a sanitation system, but not very practical. I've actually done it myself, without chlorine for a lady who had a "price is no object" desire to avoid chlorine odors in her indoor pool. It worked well for the year after I installed it, but I lost touch after that. Of course, the system cost about $30,000 (in 2011 dollars) for a system that serviced a 20,000 gallon pool, required regular professional maintenance, would not have worked outdoors.

On an outdoor pool, you have to remember you ALREADY have more UV exposure from the sun, than most systems generate. The problem is, UV creates no residual, doesn't penetrate far, and 'feeds' algae!

So . . . that's why I'm wondering what you've been reading. It would appear that whoever wrote the literature you have is either not very honest, or not very educated on the subject.

Good luck!