Today is the day to choose....

[roll tide]

I have a dark blue liner. It looks 100 times cooler than my neighbor with the real light blue liner. Plus, it's supposed to help keep the water warm.

Also, I have a SWG. My pool store said "You still need to shock it." They don't make near the money off of SWG owners. I'm a dummy at this sort of stuff - I spend my days giving financial and tax advice - but I think I've figured out the SWG after about a month. 2-3 minutes a day taking care of it has worked so far.

[poolbee]

FWIW, my pool builder was pushing the SWG,(we had decided to use it even before contracting him) but he is also the one that put table salt in the pool and now I have an iron/staining problem. He was probably hoping I'd come to them to fix it-sorry Charlie.
As Roll Tide said, 2-3 minutes a day and that's it. I test the water and adjust my output as needed-and it's usually not needed.