New VSP run schedule suggestions?

[CEPE7A]

Hi,

New user here and yes I did read the forum before making the post.
This season I’m seeing sat scaling on titanium plates of the cell. I had it cleaned in HF acid twice but then reading some comments it might damage the plates. Anyways, my specs are within normal range, posting chemistry results link for those interested. I do have 4300 ppm salt, maybe too much salt in the pool? I also had a new VS pump installed and it’s been running two scheduled run times with about 5 hour stop in between. The cell stays on but says “no flow” when pump isn’t running. Maybe that’s what’s causing deposits.
Anyways, it would be helpful if you would provide some suggestions or ideas on what could be happening.

Thank you


Pool data

 

[mknauss]

Your latest Poolmath logs show a CSI of 0.37. Lower that to between -0.3 and 0.0. Easiest way will be to reduce TA to 70 and maintain pH in the 7's.

 

[CEPE7A]

Your latest Poolmath logs show a CSI of 0.37. Lower that to between -0.3 and 0.0. Easiest way will be to reduce TA to 70 and maintain pH in the 7's.

I haven’t been able to drop TA. Tried lowering ph without any drop in TA. Recently I accidentally added twice the amount of suggested HCL acid which lowered ph to 6 so I had to use soda ash to balance ph which caused TA to go up. I’m my pool ph constantly wants to raise.
Any suggestions?

 

[ajw22]

Running the SWG in two blocks of pump runtime bypasses the polarity switching whose purpose is to clean scale that develops on the plates. Run your SWG in one block to generate the chlorine you need for the day.

The Jandy Aquapure Ei has a 10 minute cycle time and a 5 hour time to reverse polarity. For example at 40% the cell will run four (4) min. every ten (10) min.

The Jandy AquaPure Ei is a reversable polarity cell which means that for every five (5) hours of operation the cell will switch its polarity to help prevent any build up of calcium on the cell plates. This is sometimes referred to as the automated cell cleaning feature. During the transition between changing its polarity there is a five (5) minute wait time when the cell will not produce any chlorine. Once it has changed polarity it will continue to make chlorine.

NOTE: ‘CLEANING’ will be displayed on the screen during the five (5) minute ‘WAIT’ period. The output level indicator will remain as set during the cleaning period).

 

[CEPE7A]

Running the SWG in two blocks of pump runtime bypasses the polarity switching whose purpose is to clean scale that develops on the plates. Run your SWG in one block to generate the chlorine you need for the day.

The Jandy Aquapure Ei has a 10 minute cycle time and a 5 hour time to reverse polarity. For example at 40% the cell will run four (4) min. every ten (10) min.

The Jandy AquaPure Ei is a reversable polarity cell which means that for every five (5) hours of operation the cell will switch its polarity to help prevent any build up of calcium on the cell plates. This is sometimes referred to as the automated cell cleaning feature. During the transition between changing its polarity there is a five (5) minute wait time when the cell will not produce any chlorine. Once it has changed polarity it will continue to make chlorine.

NOTE: ‘CLEANING’ will be displayed on the screen during the five (5) minute ‘WAIT’ period. The output level indicator will remain as set during the cleaning period).

Here is my current schedule:
8am to 4 pm 1200 rpm
5pm to 4 am 1275 rpm

As you telling me I should just run it as one block… say 24/7 at 1200 rpm without stops?

 

[ajw22]

Here is the correct schedule:
8am to 4 pm 1200 rpm
5pm to 4 am 1275 rpm

As you telling me I should just run it as one block… say 24/7 at 1200 rpm without stops?

Yes.

And your SWG should not be powered when the pump is off. You run the risk of the cell exploding.

 

[CEPE7A]

Yes.

And your SWG should not be powered when the pump is off. You run the risk of the cell exploding.



View attachment 448045

Very helpful response. Now do you know if there is a way to wire so it would turn off automatically when the pump is off? Right now when the pump stops, the cell displays “no flow”. I do have a timer installed that cuts off both the cell and the pump but it’s a dumb timer without any remote access.

 

[ajw22]

Very helpful response. Now do you know if there is a way to wire so it would turn off automatically when the pump is off? Right now when the pump stops, the cell displays “no flow”. I do have a timer installed that cuts off both the cell and the pump but it’s a dumb timer without any remote access.

The VS pump should be connected to continuous power and not through the timer.

The SWG should be connected to the same breaker as the pump power but through the timer.

You then set the SWG timer to turn the SWG on and off inside the times the pump runs using the programs in its control panel.

If you turn off the pump manually then you need to turn off the SWG.

This is the best you can do without Aqualink automation or if your pump is one of the new Jandy pumps that has relays in it.

 

[CEPE7A]

I

The VS pump should be connected to continuous power and not through the timer.

The SWG should be connected to the same breaker as the pump power but through the timer.

You then set the SWG timer to turn the SWG on and off inside the times the pump runs using the programs in its control panel.

If you turn off the pump manually then you need to turn off the SWG.

This is the best you can do without Aqualink automation or if your pump is one of the new Jandy pumps that has relays in it.

It’s a new pump with relays.

 

[ajw22]

I

It’s a new pump with relays.

Then connect the SWG power through the pump relay to control it.

 

[blackout]

+1 for running 24/7. As Jim always says, run the pump for a purpose. I found my purpose, and that was to not have 16 hours a day where chlorine wasn’t being produced, where water wasn’t flowing through a high chlorine area in the salt cell.

I had followed TFP methods since the first day I (ever) owned my pool. However, I would too often have my FC go from good/high to 0, especially early in the season with all the junk falling in. Kids #1 and #2 in the pool maybe/probably, too. But regardless, same community of kids this year, and having only changed from 8 to 24 hour run time, same FC production and calculation method, my pool is at last TF.

I’ll never not run 24/7 from here on out. At a power demand of about 0.140 kWh and a power cost of about $0.17/kWh, it’s 2.38 cents per hour to run. Wish I had done it sooner.