New VS Pump Suggestion

dielseman

Well-known member
Jul 1, 2017
300
GA
Pool Size
8500
Surface
Plaster
Chlorine
Salt Water Generator
Hi all

Recently installed a Jandy Variable Speed pump and would like to a schedule for the warmer and cooler months. I would also like to know your suggestions for run time and what speed to run the pump at. I have been running it for about 20 hour a day at 2,400 rpm. Would like to know if that should stay the same or can be adjusted.

Pool size 8,500
Jandy VS 2.7 HP
Jandy SWG
 
The main reason to run the pump is to create your chlorine. So when the SWCG is operating, the minimum rpm is that which satisfies the flow switch on the SWCG. Plus 100-200 rpm for the filter getting dirty. Time to run depends on how much chlorine you need each day.
Second reason is to skim the surface. You have to determine what rpm is needed (if different than the minimum for the SWCG) and the time each day you need to skim.

In the winter, when the SWCG stops generating chlorine, you switch to skimming parameters only. Add liquid chlorine as necessary when the pump is running.
 
The main reason to run the pump is to create your chlorine. So when the SWCG is operating, the minimum rpm is that which satisfies the flow switch on the SWCG. Plus 100-200 rpm for the filter getting dirty. Time to run depends on how much chlorine you need each day.
Second reason is to skim the surface. You have to determine what rpm is needed (if different than the minimum for the SWCG) and the time each day you need to skim.

In the winter, when the SWCG stops generating chlorine, you switch to skimming parameters only. Add liquid chlorine as necessary when the pump is running.
How do I determine this? I’ve read some run their pump 24/7. While others run as little as a couple hours. I’ve also read to run it between 2000-3000 rpm between 6-10 hours. What is the best way to determine the most energy efficient way of doing this.
 
I detailed what to determine.
Reduce rpm until the no flow light comes on the SWCG. Then increase rpm by 200 ppm. That is minimum.
Run the pump long enough to create the chlorine you need. Use PoolMath
Skim, that is up to your observations.
 
This is my schedule, which depends on your pool's specific needs.

For Warmer Months (Spring/Summer):

7:00 AM - 9:00 AM: High speed (for pool cleaning or vacuuming) — 3,000 RPM
9:00 AM - 6:00 PM: Low speed (for filtration) — 1,800 RPM
6:00 PM - 7:00 PM: High speed (for pool cleaning or spa usage) — 3,000 RPM
7:00 PM - 10:00 PM: Low speed (for filtration) — 1,800 RPM

For Cooler Months (Fall/Winter):

7:00 AM - 7:00 PM: Low speed (for filtration) — 1,500 RPM
 
Last edited:
I detailed what to determine.
Reduce rpm until the no flow light comes on the SWCG. Then increase rpm by 200 ppm. That is minimum.
Run the pump long enough to create the chlorine you need. Use PoolMath
Skim, that is up to your observations.
So the first step is to make sure the SWG is generating enough chlorine, PPM. Then reduce as you observe. Is there not a formula that can be used based on the volume of the pool and RPMs of the pump?
 
This is my schedule, which depends on your pool's specific needs.

For Warmer Months (Spring/Summer):

7:00 AM - 9:00 AM: High speed (for pool cleaning or vacuuming) — 3,000 RPM
9:00 AM - 6:00 PM: Low speed (for filtration) — 1,800 RPM
6:00 PM - 7:00 PM: High speed (for pool cleaning or spa usage) — 3,000 RPM
7:00 PM - 10:00 PM: Low speed (for filtration) — 1,800 RPM

For Cooler Months (Fall/Winter):

7:00 AM - 7:00 PM: Low speed (for filtration) — 1,500 RPM
Have you tried higher speeds in 2500-2750 RPM for 6-8 hours? Curious which is more efficient for KWh usage.
 
The SWCG generates the same amount of chlorine regardless of rpm, as long as you are above your minimum.

Typical FC loss during swim season is 2-4 ppm per day. Less in the shoulder seasons.
You do not indicate what SWCG you have in your signature. So I cannot suggest a starting point for your % generation. And I would need to know how long each day you would like to run the pump. Or are you looking to minimize.
 
Jandy SWG
Add the exact model to your signature.

Is there not a formula that can be used based on the volume of the pool and RPMs of the pump?
The SWCG flow switch is binary. It will be either be open or closed. For chlorine production, the RPM of the pump doesn't matter as long as the flow switch is closed.

Curious which is more efficient for KWh usage.
Run the pump as slow as possible while still achieving your requirements (SWCG and skimmers working, etc.). I operate 24/7 at slow speed (1000 RPM). This consumes ~70 Watts and costs $5/month in electricity. I like the constant skimming, chlorination, filtration, and circulation.
 

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Add the exact model to your signature.


The SWCG flow switch is binary. It will be either be open or closed. For chlorine production, the RPM of the pump doesn't matter as long as the flow switch is closed.


Run the pump as slow as possible while still achieving your requirements (SWCG and skimmers working, etc.). I operate 24/7 at slow speed (1000 RPM). This consumes ~70 Watts and costs $5/month in electricity. I like the constant skimming, chlorination, filtration, and circulation.
It appears as though it is far more beneficial to operate at a lower speed for a longer period of time. Rather than operating at a shorter period of time at a higher rpm. Signature has been updated. I have a Jandy Natur2 SWG. What is your suggestion for the summer and winter?
 
This is typical usage for a VSP...
View attachment 618352
It appears as though it is far more beneficial to operate at a lower speed for a longer period of time. Rather than operating at a shorter period of time at a higher rpm. Signature has been updated. I have a Jandy Natur2 SWG. What is your suggestion for the summer and winter?
 
It appears as though it is far more beneficial to operate at a lower speed for a longer period of time.
Yes, if your pool is setup appropriately. I can operate continuously year-round for $5/month.

Signature has been updated.
Your signature disappeared. I don't see anything right now.

What is your suggestion for the summer and winter?
Since you're in GA, I'm assuming you leave your pool open in the winter. I would operate year-round 24/7. When the water is very cold, your SWCG will stop producing so you'll need a little LC. Winter FC demand is almost nothing. Last winter I used a grand total of two gallons of LC for the entire winter season.
 
Yes, if your pool is setup appropriately. I can operate continuously year-round for $5/month.


Your signature disappeared. I don't see anything right now.


Since you're in GA, I'm assuming you leave your pool open in the winter. I would operate year-round 24/7. When the water is very cold, your SWCG will stop producing so you'll need a little LC. Winter FC demand is almost nothing. Last winter I used a grand total of two gallons of LC for the entire winter season.
Signature is updated. What is your suggestion. I would like to set the RPM to a higher speed for a bit to help with skimming for now. How do I set multiple RPMs with the pump in the iAqualink app? I currently have this set to 6 hours at 2500 RPM.
 
I would like to set the RPM to a higher speed for a bit to help with skimming for now. How do I set multiple RPMs with the pump in the iAqualink app? I currently have this set to 6 hours at 2500 RPM.
The Wiki describes how to setup a VS pump in Aqualink…


Post your VSP Speed Setup page.
 
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Signature is updated. What is your suggestion. I would like to set the RPM to a higher speed for a bit to help with skimming for now. How do I set multiple RPMs with the pump in the iAqualink app? I currently have this set to 6 hours at 2500 RPM.

I set my SWG speed as my "Pool" speed. 1500 rpms. I set that for 23:55 hour runtime during the season. Then I set higher speeds when I want more skimmer action usually 3000 (another speed in the speed setup for the pump). I schedule that for 45 minutes every morning. When the 45 minutes is up, it simply reverts to the "Pool" speed.
 
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