Thank you, I am glad I found this forum, last summer I was at witts end trying to keep my water clear/brite by adding every known chemical recommended by the L_____e's Pool store, nothing worked but sure did spend a lot of money.

It was just high CYA level from the 3" tricholr pucks. Used Ben's (I think) best estimate on chlorine residual at the higher CYA levels and presto the water has been in control ever since. This forum's diversity is the best.

PoolSean,

Thanks for your unbiased answers, my research led me to the Pool Pilot Digital & SC-48 cell then I read the posting here. Please feel free to be biased if you are allowed.

The pool pilot digital looks like the way to go. The Goldline product seems to fall a little short, but that is also reflected in the cost.
Temp compensation, if it works, I think is a very important feature. What's your biased opinon? I am already leaning your way.

Space: I have a ~36" section of output pipe that spans a space to add a heater. Currently an inline hayward chlorinator is installed in this run. The plumbing is all 1 1/2" PVC. Can't change that; any issues?

Run Time: I can run the pump longer just don't seem to have the need, 8hrs on the sand filter, then in between 6hrs with the dolphin, the water is very brite. By very rough calculation the 8hrs is about 1 complete water cycle.

Stainless Steel lift: I do rinse the chair off but part of it is submerged all the time. Doesn't seem to have any adverse effects as of yet 18 months in service. This is the commercial unit found in many pools , YMCA etc..

I don't want to install a system just to say in late August I wish someone made a unit that could compensate chlorine levels based on temperature or I should have bought the one that does. I don't have high bather load demands just sun and heat demands.

I welcome all the advice the forum can offer!

Thanks
PaulK