Daily Schedule Assistance

soccerballbmw

Bronze Supporter
Jan 18, 2024
47
Saint augustine, Florida
Pool Size
11500
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
Hi all. I'm setting a daily schedule for my 14k gallon pool (pool company says 11,500, so somewhere in between the two numbers). I tested out various RPM numbers on my easy touch panel and the image below shows the data it returned. I'd like to run the pump 24/7. I live in Florida facing direct sun with zero shade over the pool, the UV is at 12 on sunny days, so I need the SWG running as much as possible. I have not been running for 24/7 previously and will test out the SWG percent over the next few days. But as for the schedule, is the screenshot below a reasonable one? More/less? Not exactly sure how to gauge this or what to shoot for.

Also side note. The SWG is a Fixed amount correct? Meaning, The flow speeds have no bearing on the SWG output, outside of the minimum for it to turn on.

Thanks in advance for your help!



Capture.JPG
 
Run the pump at an rpm needed to close the flow switch. Add 100 rpm to that level. See if that skims the pool efficiently. If so, leave it there.
 
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Do not worry about turnover - the amount of gallons you circulate daily.
You want to run your pump to skim and to make chlorine. Running 24/7 is a good start.
As you stated, the minimum RPM should be what activates your flow switch on the SWCG then at 200rpm to account for filter as it gets dirty.
So if that number is 1000 RPM + 200rpm then 1200 RPM is your baseline running speed.
Then adjust your % output of the SWCG to produce the desired amount of FC daily based on 24 hr operation.

Do you have PoolMath app? That has a feature in Effects of Adding where you can put in your SWCG model, select 24 hrs and then select for example 5ppm. It will tell you approximately what your % output should be for the SWCG.

Now having a variance of 11k to 14k in pool volume will cause some errors in these estimates so try to tighten that up.
 
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s,

It appears you are trying to figure out "turnovers"... If so, you are just peeing into the wind... :mrgreen:

The idea that you have to turnover x amount of water per day, is a just a myth and not true.. Chemicals keep your pool clear and sanitized.. Your filter is just there to capture the junks that falls into your pool and floats..

That said, I love running 24/7 at a low RPM... I love making a little chlorine all the time, and skimming all the time.. I also like the look of my pool when there is a little motion to the water.

Run 24/7 at the lowest speed that will turn on the SWCG plus 100 RPM and then only increase the speed for a reason that has nothing to do with turnovers.

Thanks,

Jim R.
 
Thank you all for your help. @HermanTX I do have the app. The flow light turns off below 800. As for the gallons... too much math for me lol 14x28 pool 3.5-6 feet deep, with a 12x5 sun shelf with corner stairs and a 12 foot long step along the length of the sun shelf of various depths lol. so i just average out those two numbers haha.
 
To figure out your pool volume, use Pool Math and set the number of gallons to 11,500 gallons. Then, adjust Ph, say from 7.8 and target it for 7.4. Pool Math will tell you how much Muriatic Acid to add. Add the recommended amount of acid and then test Ph again. If it lowered to the number you set, then the volume is correct. If it only lowered to, say 7.6, then you know your gallons are low.

Then keep playing with the number of gallons until you get the correct result and that will give you YOUR correct water volume.
 
Thank you all for your help. @HermanTX I do have the app. The flow light turns off below 800.
Great. Put IC40 in the SWCG field, put in 24 hrs and then input either FC ppm or % output depending on which one you want to calculate.

As for the gallons... too much math for me lol 14x28 pool 3.5-6 feet deep, with a 12x5 sun shelf with corner stairs and a 12 foot long step along the length of the sun shelf of various depths lol.
You didn't say if the sun shelf was included in the 14x28 rectangle. So just the 14x28 with average depth of 4.75ft calculates to almost 14,000 gals.
So once you set your SWCG, then monitor it over time and if needed adjust the volume of pool.
Another way is to measure pH - then add the desired amount - then test 30 mins later. If the predicted change (using PM app) is not achieved then adjust volume of pool to make it correct. Monitor over time.
 
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I'd like to run the pump 24/7
If your SWCG flow switch is closed (appears to work down to 800 RPM for you) and your skimmers work at 1,000 RPM, use that speed and operate 24/7. Should cost around $5/month. You'll need to increase the RPM when your using your heat pump to satisfy its flow/pressure switch.

The flow speeds have no bearing on the SWG output, outside of the minimum for it to turn on.
Correct.
 
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Again thank you all for the feedback, it's much appreciated!

@pjt Thanks for following up on the SWG question. I see in your signature you also have a heat pump/chiller and i imagine texas weather this time of year is comparable to Florida. Any tips on using the chiller without breaking the bank lol
 
Any tips on using the chiller without breaking the bank lol
I usually operate at night to get a head start on the following day. Our electricity is cheap (yours is too). After spending a lot of money, time, and effort building a pool, it makes sense to spend a few dollars to swim in cool, comfortable water.
 

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I usually operate at night to get a head start on the following day. Our electricity is cheap (yours is too). After spending a lot of money, time, and effort building a pool, it makes sense to spend a few dollars to swim in cool, comfortable water.
hear that haha. It was running me 25 bucks a day a few weeks ago just trying to keep it at 88 haha. I've gotta mess with it, thats the last piece of equipment i haven't spent much time looking into.
 
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That seems high. I have a variable speed HP, and on high speed it costs ~$13/day. On lower compressor speeds, it's much less.
 
Jumping back into this post. I didn't bring up that I have two skimmers and a main drain in my original post. I noticed when I lowered the RPM down that the pump wasn't fully filling with water and looked more like a jacuzzi (picture attached, don't know how to upload a video of it). So I turned off one of the skimmers, which seemed to work. But i just went outside and saw that the pump was bubbling up again. I have the RPM at 2,000 with only one skimmer and it is still doing this. Does anyone have a suggestion? Previously was running at 2,400 RPM with two skimmers form 8am to 10:30pm. I was planning to run it instead 24/7 at a much lower RPM as we discussed in the earlier posts. Still new to pool ownership, and not sure how the various things correlate to each other. Thanks in advance!

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went outside and saw that the pump was bubbling up again
It's common to have a small air bubble inside the pump at low RPMs. Nothing to worry about. I run a three minute schedule twice a day to momentarily increase my pump RPM and purge any air in the system.
 
Air comes from suction side leaks. So check and use Pool Lube on all connections on the suction side.
 
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