SWG Edge40 says FC 1-3…?

[Floop]

I’m sure this has been asked many times but I couldn’t find an exact answer.

Recently added SWG Edge40 and loooove it. But I’m confused about balancing. Manual says FC 1-3 and CYA 30-50. TFP says FC 5-7 and CYA 70-80. Is there a benefit to either/or?

Obviously I trust TFP more than anyone else bc duh! Just fyi — I’m in Phoenix where it’s over 100 degrees outside so pools can get into trouble quickly here, if that affects the recommendation in any way. Thanks!

 

[PoolStored]

The higher CYA level reduces FC demand and extends the life of the cell.

In AZ, when you are confident you can maintain your FC within range, I wouldn't hesitate to run CYA at 80-90 and run FC at 10-12. I do that here in Ohio to extend the life of my cell.

 

[Floop]

Oh wow thank you so much bc I knew nothing about how to preserve the cell! And I’m screenshoting the chart, that’s really helpful.

I think I have to wait a bit to really get it balanced properly bc the salinity is through the roof — I don’t know if installer added too much salt or if it’s bc he left the generator turned all the way up. And I think he only thing I can do for salinity is drain some water, is that correct?

 

[PoolStored]

Yes, replacing water lower salt levels. He likely didn't test for existing salt before adding salt. Common error.

 

[mknauss]

How are you testing your salinity of the pool water?

 

[Floop]

I’m using the Taylor test that has 2 bottles — one larger and one smaller. I think I bought it bc it was recommended here, but now I can’t remember! Is this the correct test?

 

[mknauss]

I’m using the Taylor test that has 2 bottles — one larger and one smaller. I think I bought it bc it was recommended here, but now I can’t remember! Is this the correct test?

That is correct test.
If the salinity is too high, you will need to drain and add some fresh water.

 

[Floop]

Can you explain the higher chlorine levels and how it preserves the cell? In my head I would think it would put more demand on the cell but I know that’s not correct. I can’t figure it out so I thought I better understand the settings better in case I need to adjust later.

On the higher FC does that bother you when in the pool?

 

[mknauss]

Read Pool Care Basics

FC/CYA ratio from 5 to 40% of CYA is safe to swim in. You will not be bothered by FC within those levels.

If you maintain the CYA in the TFPC appropriate level, with the FC within the appropriate level for the CYA, you will use less FC per day.

 

[PoolStored]

Can you explain the higher chlorine levels and how it preserves the cell? In my head I would think it would put more demand on the cell but I know that’s not correct.

Higher CYA requires a high level of FC to be maintained. Higher CYA reduces FC demand (how much is used up each day). If you need to make less, the cell lasts longer.

 

[Floop]

Ahah — got it now! Thanks!