Pentair intellichlor upgrade

[Smonahan0129]

I currently have a pentair CL20 that has gone bad and am going to replace it.

My question is would I benefit from moving up to a CL40 & can I still use my original control panel?

My pool is 18,000 gal so it's pushing the max of the CL20

Thank you in advance
Sean

[mas985]

The larger SWG should last twice as long and give you some head room so you can reduce run time if you want saving on pump energy.

[Smonahan0129]

Thank you.. Is it still okay to use the same power box I have or would I have to change that out as well..

Do you recommend running it on 40% as opposed to the 60% I was running it on with the CL20

[mas985]

To get the same chlorine level, you should run the 40 1/2 as much as the 20 because it generates twice the chlorine. So if you were running 60% and you have the correct chlorine level, then 30% should be sufficient.

The power box should support both cells but check the manual first.

[PoolDoc]

Pentair only has one power center for their IC series. It works OK with the 2 smaller units, but tends to overheat with the IC-60. I have a box fan resting in front of a bank of for power centers driving 4 IC-60 units . . . and the things still get hot.