How you test your water using speed stir

Watershow

Well-known member
Jun 10, 2020
216
Riverside County, CA
Hi all,
I was wondering what is the right way to test your water using the speed stir. Do you add drops as it’s stirring or do you stir each time you add a drop? My husband adds drops as it’s swirling and I noticed there’s a .5 difference in technique. Also, is it common to lose 1ppm the same day you add chlorine? My husband added chlorine this morning and tested the water in the evening. The weather is starting to become warm and has been in the mid 70s-80s this week. I am noticing I am needing to add chlorine more frequently these days.
 

Rancho Cost-a-Lotta

Silver Supporter
Apr 10, 2018
2,440
Rancho Cucamonga, CA
Pool Size
18735
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
CircuPool RJ-45
With the 10 ml test, two drops is somewhere between .5 and 1 ppm loss. Given the time of year and our current weather, you're right where you should be. As @mguzzy mentioned, expect to see between 3-5 ppm daily loss through the summer.
 
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Rancho Cost-a-Lotta

Silver Supporter
Apr 10, 2018
2,440
Rancho Cucamonga, CA
Pool Size
18735
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
CircuPool RJ-45
Do you also run your pump longer in the summer? How many hours?
During the peak summer months, my SWG needs around 8-10 hours per day to make up for daily FC loss. Since I'm on a time of use power plan through SCE (with solar), I generally run most of those hours overnight. I run a couple hours during the late afternoon hours to skim the surface of wind-blown debris. If I didn't have an SWG, I would probably run around 6-8 hours per day.
 
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