Need help finding 10% - 12.5% chlorine locally

[CarlD]

If the liquid shock is so cheap, you can buy one gallon for $2.99 and test its potency. I use a 10ml eyedropper of the stuff and put it in 10 liters of tap water (that's five 2-liter soda bottles) and test it with my FAS-DPD test. The level of chlorine in the water is EXACTLY the concentration in the bottle. If it's 12ppm then it's 12% and you should buy it and store it in a cool, dark place--that's well-ventilated.

In the blue carboys the LC tends to hold its potency better--I think the plastic prevents UV from getting to the LC.

So, there's no problem with shopping around. Just be an informed.

This is the first I've heard of problems with the reagents in the on-line kits. I've rarely had a problem with reagents that lost potency--I tend to store them in cool, dark cabinets--Poconos actually refrigerates them and they last for years that way.

""plant corn, get corn." Buy cheap get... " is one way of looking at it, but my father-in-law (a Brooklyn boy who has lived in NJ since 1960) always says "Any poor shnook can pay retail".

We are all about getting what we need for pools at reasonable cost. Why pay $12 for 4lbs of "Total Alkalinity Raiser" when you can buy the same stuff, baking soda, in a 12 lb bag at Costco for $4 ? That's 3 times as much for 1/3 the price. In other words, the pool store is charging 9 times as much.

Here in NJ, there are strips that can have as many as 7 pool stores (Check out Rt 22 between Bound Brook and Scotch Plains sometime). There's one I buy LC at because it ALWAYS tests at 14% though they list it at 12.5% and turn over massive amounts. They also don't try to sell calcium to people with vinyl pools. SOME of their stuff is more expensive but they can get parts I need fast--if they don't already have them in stock--and their advice on mechanical issues is usually very good. But their LC is usually also less expensive than Namco (Branch Brook).