Long time lurker, first time poster. Hopefully I can provide all the details that are necessary for some insight! Much thanks in advance.
First the important numbers:
Gallons: 26000 est.
CC: < .5
TC: < 15.5
CYA: >= 100
I know I have high CYA levels, but I'm not sure of the accuracy of the test results considering I've added lots of shock in the past few days. I will retest this number once my pool is under control and the FC levels drop to normal ranges.
The reason for my posting:
Just today I decided to switch from using pucks and shock bought in stores to using the BBB method, and I wanted to ensure I was on the right track. It just so happens that I am dealing with an infestation of green nastiness after having quite a large pool party. Using the calculator found here (http://www.poolcalculator.com/) I added 546 oz of bleach just today. Theoretically, this should raise my FC to 25ppm (i.e. shock levels for me). I will double check these levels night before bed to see the impact it has had.
I had some questions regarding the length of time to maintain shock levels as these questions were hard to find in the forum. I did find references all over the place to overnight tests but was unsure how much is an acceptable amount of FC loss. 1ppm? 2ppm? Can anyone provide clarification? I assume that so long as the FC doesn't drop any more than 1 or 2 ppm overnight then I can let my FC return to my normal operation range of 8-13 ppm. Does this sound accurate?
I have one other question concerning the calculator. What is SWG?