Swimming pools blog

I am using a powdered cholorine product called Shock Plus in our
pool. It is the same product that I used last year and had no
problems with it.
This year, I just can’t seem to hold the chlorine in the pool. It’s a
30,000 gal in-ground pool. After adding 8 pounds of chlorine
stabilizer (recommended amount), I was not able to maintain chlorine
in the pool… I mean that I would add chlorine in the evening, and
the following morning I would show no chlorine when I tested the water.
I added an additional 4 pounds of stabilizer to the pool, but the
results remained the same. I have since added another 8 pounds of
stabilizer and I still show no chlorine when I test the water. The Ph
level is perfect when I test.
Did I get a defective test kit, or is there something else going on
here? Advice/information would be greatly appreciated…
Janice

Connecticut