how much shock is too much?

[waterbear]

any FAS-DPD test such as the one in Ben's kit or the Taylor K-2006 will test high free chlorine levels.

[waterbear]

Also, are there test kits to test the chlorine levels above the 3.0 mark? Also, what is the method you are using to calculate to check the higher Chlorine levels?
If you do an advanced search in the forum for 'shot glass method' you will find a way to approximaty test high chlorine levels with an OTO test kit
At what level would the chlorine level be too high to swim in?
This depends on your CYA level
I have a above ground doughboy 13,000 pool, will the higher levels when I shock be okay for the liner?
Once again, this depends on your CYA levels
Thanks

hope this helps....first thing you need to do is get a good test kit like the one sold on the sister website www.poolsolutions.com or a Taylor k-2006

[justgrapejuice]

My CYA level is 30

BTW, Thanks again...

[aylad]

The dpd./fas test in Ben's kit will test accurately up to 50 ppm. Alternatively, if you have one of the OTO kits that measures up to 3, you can dilute one part pool water with one part distilled water, and test from a thoroughly mixed sample, then multiply your results by 2. If still too yellow, then dilute 1:2 and multiply by 3. It's a ballpark, because you lose a little accuracy with each dilution, but it'll be enough to get you started.

What level of chlorine is safe for your pool depends on your CYA level, and you really need to have an accurate number to determine correct chlorine levels to kill the algae. If you stick with the best guess table, it'll be okay for your liner.

Janet