RJ-60 PLUS pump running time

[quky]

Hi just became a proud owner of the rj60 plus and so far, very happy with it.
I am running home assistant and I can monitor the power consumption of the cell generator.
I have setup the SWG to 20% and noticed that the production of chlorine only happens twice
during the 4 hours that I run my pump as show bellow.

It produced chlorine for 35 or so minutes twice so the pump is running for 3 hours doing nothing.
Should I run the pump just twice for 1 hour to save in energy if so what would be the best time to run the pump right now is set from 08:00am to 12:00PM
Best regards

 

[Jimrahbe]

Q,

Guess what 20% of three hours is???

Salt cells are either on or off... To regulate the output they just control the amount of time the cell is on..

Thanks,

Jim R.

 

[quky]

and why not 20% of 4 hours
still looking for advice on running the pump twice for 1 hour.
best regards

 

[PoolStored]

Do you have pool math? Download it, configure your pool. Link-->PoolMath

Use "Effects of Adding" function, choose SWG, RJ-60.
Then you can play with SWG% and pump run time to get the amount of chlorine you need.
20% and 4 hours = 80% and 1 hour = 1.1FC in your pool.

 

[ajw22]

and why not 20% of 4 hours
still looking for advice on running the pump twice for 1 hour.
best regards

SWG Generation Cycle Times - Further Reading

www.troublefreepool.com

SWG have a hard coded cycle time during which they generate chlorine, rest, and then switch polarity.

Running the pump and SWG for short cycles can confuse the generation % and polarity switching of the cell.

 

[PoolStored]

I believe The RJ has a 200 minute duty cycle. If set at 20%, it will be on for 40 minutes and off for 160 minutes.

 

[Bperry]

and why not 20% of 4 hours
still looking for advice on running the pump twice for 1 hour.
best regards

It doesn’t work like that. If your concern is energy savings, you’de do well to switch to a variable speed pump and run it as slow as possible. You’de probably be able to run it 24x7 at slow speed for less money than you do now, (unless you only run it 2 hours per day)

If you only want to run your pump for 1 hour, you’ll need to turn the SWCG percentage way up.

 

[ajw22]

If you only want to run your pump for 1 hour, you’ll need to turn the SWCG percentage way up.

With 1 hour pump cycles the SWG will restart the generation cycle and polarity each time.

A 20% setting will generate for 40 minutes then the pump will turn off after 60 minutes. That will effectively be a 66% generation for each 1 hour pump cycle.

In addition the SWG cell will always be running on one polarity and have uneven wear between the cell plates.

 

[quky]

Do you have pool math? Download it, configure your pool. Link-->PoolMath

Use "Effects of Adding" function, choose SWG, RJ-60.
Then you can play with SWG% and pump run time to get the amount of chlorine you need.
20% and 4 hours = 80% and 1 hour = 1.1FC in your pool.

thanks, did have the app but obviously did not kwon how to used
which set should I used sorry new to this.

best regards

 

[ajw22]

I think the RJ60 claim of 3.1 lbs/day of FC is marketing puffery and optimistic.

Confirm the actual FC per day you are getting with daily testing and don't let your FC drop to algae region due to Circupools optimistic claims.

Most 60K cells generate 2 lbs/day.

Adjust the % to give you the FC you need.

 

[quky]

I think the RJ60 claim of 3.1 lbs/day of FC is marketing puffery and optimistic.

Confirm the actual FC per day you are getting with daily testing and don't let your FC drop to algae region due to Circupools optimistic claims.

Most 60K cells generate 2 lbs/day.

Adjust the % to give you the FC you need.

ok with 2 lbs/day and not the claimed 3.1 i should set the power to 30%
best regards

 

[PoolStored]

I would choose at least 4 hours of runtime or more to capture the reverse polarity.
with 200 minute duty cycle, at 20% it will run 40 minutes, rest 160, then reverse polarity and run another 40. That is 240 minutes or 4 hours.
with 200 minute duty cycle, at 30% it will run 60 minutes, rest 140, then reverse polarity and run another 60. That is 260 minutes or 4.33 hours.
You get the idea.

 

[Jimrahbe]

Q,

The key in my mind is to routinely test and adjust the actual FC up or down based on your test data.. The 30% output is just a guess...

Salt cells have no brain, they are dumb as a rock.. You need to be their brain and adjust the % of output, or the run time, to keep your FC where you want it..

Also.. I never try to keep my FC between the minimum and the Target.. I always try to keep my FC at my Target or higher.. It never hurts to run a little hot, while running a little too low can be painful..

Thanks,

Jim R.