# Thread: SWG Pump Time and Chlorine percentage

1. ## SWG Pump Time and Chlorine percentage

Hello All

I am coming off a slam and trying to figure out the optimal setting in terms of pump time and chlorine output percentage going forward while my chlorine decreases. Seeing that the saniclear 20 outputs a maximum chlorine of .33kg (~.7 pounds) is there a cool formula to determine what is the optimal chlorine percentage as well as pump time? If not, based on my pump information of 34-85 gpm (average ~60 gpm) I am thinking at a minimal I will need to run the pump for around 6 hours. Assuming I run the pump for 6 hours, I am but not sure exactly how to calculate the setting that would be best for me. Please help.

Thanks!!!!

hardness 250
tc 15
fc 15
ph 7.6
CYA 70

2. ## Re: SWG Pump Time and Chlorine percentage

Yes, there is. Here is the member's thread who created it, it is in his sig.
Formula for SWG / Pump Runtime?

3. ## Re: SWG Pump Time and Chlorine percentage

gmike,

Wow.. looks like the you are going to have to run your pump for 16.4 hours with the SWG at 100% just to replace 3 ppm of chlorine.

Sounds like it is time for a bigger SWG or a variable speed pump..

Jim R.

4. ## Re: SWG Pump Time and Chlorine percentage

Note that you will need to know the actual "function time" of your swg. That is how many minutes the manufacturer considers to be a full cycle. Then the output will relate to a percentage of that run time. Most do not modulate, they simply switch on or off for a duration based upon the cycle time.

5. ## Re: SWG Pump Time and Chlorine percentage

Thanks. This is exactly what I am looking for. That post should be a sticky.

- - - Updated - - -

Originally Posted by Jimrahbe
gmike,

Wow.. looks like the you are going to have to run your pump for 16.4 hours with the SWG at 100% just to replace 3 ppm of chlorine.

Sounds like it is time for a bigger SWG or a variable speed pump..

Jim R.
This might be a silly question, but can you mix and match the controller with the cell? For example, can I keep my Saniclear 20 controller but connect it to a Aqua Rite T-15 cell?

6. ## Re: SWG Pump Time and Chlorine percentage

Here are the results of the calculator:

7. ## Re: SWG Pump Time and Chlorine percentage

Originally Posted by gmike09
This might be a silly question, but can you mix and match the controller with the cell? For example, can I keep my Saniclear 20 controller but connect it to a Aqua Rite T-15 cell?
Sorry, but I truly doubt it. Most SWG controllers are matched to their respective cells.

Jim R.

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