Quote Originally Posted by duraleigh
Hi, Lee,

Without a SWG, 30-50 CYA seems most popular. I'd start low at 30 and then move up a little if you don't think your CL is holding like it should.

If you get a SWG, I would follow Manufacturer's recommendation...usually 60-80ppm.

Dave S.
At 30-50 CYA the min recommended FC is 3 PPM. I don't have Ben's test kit (yet). I'm lookinfg through the test kits I have (OTO... is this a FC or TC measurement?) and 3 PPM is the max the kit'll measure (recommended is 1.0~1.5) Does Ben's kit measure beyond 3 PPMs?

I do have to say I'm a bit nervous... I've had iron staining problems and with high FC, I'm afraid that the iron will be forced out of the water onto the liner. Man I have to get that iron out of the pool!

I guess the danger in running lower stabilizer levels is that the FC will "burn off" quicker on hotter days.