We have a small 14 x 28 in-ground vinyl liner pool that we had installed last year. I haven't had any problems keeping the water clean and clear, but wanted to post my latest test results to see if I can make it any better.

Oh, and the pool does have a Nature 2 system on it.

Yesterday morning after a night of heavy rain, I checked my TC and PH levels. The TC level was 0, the PH level was 7.5. To me, the water also had some what of an oily feel to it.

I put a 1lb bag of shock in the pool and tested the water last night.

Those test results are:

FC 6
CC .5
TC 6 (ballpark figure, I have a hard time judging colors)
PH 7.5
ALK 110
CAL 80
CYA 45


After doing some reading on the forum, I decided to remove the chlorine pucks from the pool today, and test again tonight.

Tonights test results:

FC 1.5
CC .5
TC 3 (again, a ballpark figure)
PH 7.5
ALK 110
CAL didn't test
CYA 40

How do these test results look? What should I be doing differently?

Should I discontinue the use of tri-chlor pucks?

Thanks for any insight.