Sanitizing FW system-- call your water company!

I just think it is a lot of hassle to save maybe a couple of bucks. If you were actually filling a swimming pool ( a big one ) then it might make sense. For 150 gallons, too much trouble for me, after all you are "using" the water, not storing it in a pool. Kind of like calling and saying " hey I'm filling my bathtub today " .