FC demand

[rjb1211]

I found the SWG Run Time Calculator. One of the input fields is FC demand.

I know that is a moving target and has too many variables to predict but I need to start someplace. Can someone give me an idea of what to enter as an approximation for this time of year in Pennsylvania while I get it figured out based on my pool?

 

[proavia]

In PA this time of year around 2ppm.
It depends on how much sun you're getting.

 

[rjb1211]

Thank you.

 

[SJPoe]

My pool, with a solar cover, heated, CYA around 70, in mid-Michigan (so not that much different climate-wise to you) is running almost exactly 2ppm right now.

If I set my SWG on 10% @ 24hours (1.5ppm/day), I notice a very slow decline in measured FC.
If I set my SWG on 15% @ 24hours (2.3ppm/day), I notice a very slow increase in measured FC.

Unfortunately, I don't have a 17.5% setting...

 

[Jimrahbe]

rjb,

It does not matter what number you pick because it will be wrong anyway...

I'm with Gene, 2 ppm sounds about right to me..

Keep in mind the whole idea is to try and stay at your Target range or slightly higher.. You never want to try and stay between your minimum and your Target.. Unless of course you just want to get algae...

Thanks,

Jim R.