(Per post #17). FC of 5 (or even 10) is not shock level.
Hi guys, after all this I am leaning towards keeping my FC levels higher than what the K1000 test can measure. (Only goes to 5ppm and that's the min of what I am aiming for)
So instead of using reagent test all the time (which I will run out of and supplies near me are not available) is there either another suitable day to day test kit I can use that say measures up to 10ppm?
Or is it feasible to dilute the sample say 50% and still use the K1000 kit for my day to day testing?
Last 2 SLAM's I have been chewing through the R0871 reagent (with FC levels above 30 it takes a lot of drops) so I was keen to use that sparingly as I will run out and getting supplies (although reagent is cheap) the freight is a killer for me.
During a SLAM you can use a 5 ml sample size where each FAS drop represents 1 ppm.
As for the FC/CYA level, yes it's trial-and-error in your case. You could see what a 10% ratio does so at 65 ppm CYA that would be 6.5 ppm FC. The downside with this approach is that you lose more chlorine to sunlight so it costs more in chlorine.
Is your vinyl liner blue? If so, then yellow pollen on a blue background looks green so are you sure you don't have pollen? Have you tried using a skimmer sock to see if it collects anything?