I used 5 quarts of the Kem-Tek Metal Eliminator from Amazon the procedure recommended. Normal dose per bottle instructions is 2.5 qts. This was only time any of the the HEDP products produced any cloudiness, but other additions have been recommended dose or maintenance dose. I have also used Jack's Magic Pink Stuff - dosage is same as KemTek.

I can try this, but will have to find the chorine powder. Get this as Pool Store? Also been thinking about opening up the 1.0 PPM Culator that has been in skimmer for a month to see if ball color will indicate what metal it may be picking up. Still have the 4.5 in there from a couple of weeks ago. These don't seem to be doing much for me. Thoughts?