I've had my SWCG on now for a couple weeks. I've been regularly testing and adjusting to make sure my numbers are within range.

Here were my test results (Ben's):
ph: 7.5
FC: 0.5 (maybe)
TC: 1
CC: 0.5 (maybe)
Alk: 120
Cal: 220
CYA: 60 from Bens; 90 from Poolstore
Salt: 3400

These readings were when the SWCG (Delzone TrioPure) was set on 10 (max chlorine production) with pump running about 14 hours a day. PB came over, verified test results and then tested the water coming directly from the SWCG. That reading was TC about 5 (which is what the manufacturer said it should be). So, where's all my CL going?

Because of the differential, PB recommended shocking (something in the pool was eating up the CL). Using bleach, I brought the CL up to 25. Testing everyday, I got the following:

Day 1: TC: 25, CC: 0
Day 2: TC: 18, CC: 0
Day 3: TC: 12.5, CC: 0
Day 4: TC: 8, CC: 0
Day 5: TC: 6.5, CC: 0

I've been running pump 24x7 and keeping the SWCG set on 10. My thinking was that at some point, the TC would level out at the maximum output of the SWCG. At this point I would dial the time and setting back to acheive an optimal TC. But, as you can see, it keeps dropping.

Any thoughts?

Pool Specs: 40k gal, Pebbletec, Jandy DE Filter, Delzone Triopure SWCG