On Fri, 26 Apr 2013 05:14:26 -0700 wrote:

- Costco $80/40 pounds * 100/84.65 pounds = $2.36/pound FC
- Leslies $80/35 pounds * 100/90.0 pounds = $2.54/pound FC
- Home Depot $60/24 pounds * 100/90.0 pounds = $2.78/pound FC
- Lowes $60/24 pounds * 100/84.95 pounds = $2.94/pound FC
- Liquid $21.62/8gal x 1gal/9.7 pounds x 100/10.8% by wt = $2.58/pound FC

people use liquid chlorine because they think it's the cheapest
form. Kind of what you'd expect, right? It's just chlorine bleach
here liquid chlorine 12% is about $18 for 5 gallons

At your NJ price, the cost for free chlorine balloons up to:
- Liquid $18/5gal x 1gal/9.7 pounds x 100/10.8% by wt = $3.44/pound FC

Likewise, at my best CA non-sale price, the cost mushrooms even further:
- Liquid $17/4gal x 1gal/9.7 pounds x 100/10.8% by wt = $4.06/pound FC

It is surprising that liquid chlorine isn't the best price overall,
as, logically, you've made a case that it 'should' be cheaper.