Quote Originally Posted by Pappy View Post
How is your pool water being tested? Pool Store, guess strips, oto/phenol red, FAS-DPD?

I can tell you that with a CYA level of 70, you want to keep you chlorine ABOVE 5ppm at ALL times. This explains why. http://pool9.net/cl-cya/
Both oto and Fas-Dpd. I have been using one of Ben's PS233 kits for years. I just keep refilling the reagents.

At the start of the season I trickle feed triclor supplemented with bleach until my CYA reaches around 70. After that I maintain chlorine in a 3 to 5ppm range. I've been doing so for years.

Quote Originally Posted by JimK View Post
I'm curious.....

I noticed the Pool Pilot is much more expensive than the Hayward Aqua Rite. Any particular reason you chose the Pool Pilot over the Aqua Rite?

Btw, I have an Aqua Rite and have been happy with it.

To answer your question, the more you oversize the cell, the longer it will last. I use a 40k gal rated cell, the largest Aqua Rite offered at the time, for my 20k gal pool.
I'm leaning towards the Pool Pilot since the RC-52 is rated for 50,000 gals, which is twice my pool capacity. The largest Aqua Rite cell is rated at 40,000 gals, which is about 1 1/2 my pool capacity. If a 40,000 gal cell would be adequate for my pool then I would have a choice between the two systems. My decision would then be based upon build quality. From what I've been reading it seems the Pool Pilot has fewer complaints. However I'm wondering if fewer people use the Pool Pilot due to the added cost resulting in a fewer number of posted complaints.