# Thread: SWG Math - warning....this is for geeks.

1. ## SWG Math - warning....this is for geeks.

Does a SWG make 100% chlorine? Basically, in trying to figure out what to set my SWG% at, i over analyzed this thing to a bizarre level (i like math a little). Of course, i used trial and error but ended up very close to what my math told me.
Aquapure Salt Water Chlorine Gen
@100% makes 23.5 grams/hr (per Zodiak)
23.5g = .83oz / hr (@100%)
8.3oz of 10% bleach in 13000gallon pool raises chlorine .5ppm/hr
@35% makes 2.3ppm in 8 hrs.

any math nuts out there? lol! this WHOLE premise is based on whether or not the SWG makes 100% chlorine...but when i run at 35% for 8 hours i maintain a 4ppm pool just right and would be losing about 2ppm chlorine per day, which seems about right.

2. ## Re: SWG Math - warning....this is for geeks.

SWG chlorine production ratings are in units of chlorine gas, which is similar to the rather hypothetical 100% bleach, but not quite the same. You can use PoolMath to do most of the calculation for you, as it has a setting for chlorine gas.

3. ## Re: SWG Math - warning....this is for geeks.

i had no idea pool math did chlorine gas, nor that chlorine was measured in a SWG as gas. actually, that helps my math a little, but it is pretty dang close. the odd thing to me was, Zodiak told me they couldnt estimate my numbers for me - thats why i did it myself.

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