OK.

I was able to reach the head chemist at Kem-Tek, and surprisingly, discovered that they not only know about PoolForum.com, but liked it! That's gotta be a first for a pool chemical company!!

Anyhow, the product you got was just 20% HEDP + water, so I'm not sure what caused the cloudiness. But DO continue lowering the pH.

AND . . . once you get the pH below 7.4, you need to begin adding nightly doses of 6% household bleach, about 3/4 gallon at a time. Recheck chlorine the following evening, and if it's below 2 ppm . . . add another dose.

BUT . . . continue lowering your pH till it's near 7.0, but not below.

FINALLY, you got the KemTek stuff, but did you also order the K2006 testkit? We really need those test results in order to keep making progress!