Clean Core35 SWG at Closing?

calinb

Well-known member
Jul 18, 2018
121
N. Central, ID
I installed a Core35 at the beginning of the season. It has performed well and I've never seen the cell cleaning annunciator illuminate over all these months.

I just closed our pool and I removed the Core35, dumped out the water, and stored it in a warmer environment. I noticed that the cell has accumulated significant deposits (some of the numerous white chunks are about half the size of a ball point pen cap).

Despite the lack of any cleaning annunciator indication, Is there any reason that I should not follow the cleaning procedure described in the owner's manual now to make it optimally ready for use next season?

Thanks!
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
44,311
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
See if you can spray it out with a strong stream of water. Be careful of the flow switch if integral with the cell.

If still scale, use a 4 parts water 1 part acid solution to clean it. I am not familiar with that cell so check the manual on any precautions to take.

Keep your water chemistry such that the CSI is below 0 and above -0.3 to keep the cell from scaling.
 
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calinb

Well-known member
Jul 18, 2018
121
N. Central, ID
See if you can spray it out with a strong stream of water. Be careful of the flow switch if integral with the cell.

If still scale, use a 4 parts water 1 part acid solution to clean it. I am not familiar with that cell so check the manual on any precautions to take.

Keep your water chemistry such that the CSI is below 0 and above -0.3 to keep the cell from scaling.
Thanks, mknauss!

I'll clean it so it's ready for next year. My pool CSI is normally negative. The lowest it goes is in the winter when water temps near freezing bring it down to around -0.3.

I'll try water first but the manual says I can mix one part muriatic acid into ten parts water.. It also says it may take more than one cleaning to remove all the deposits.
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
44,311
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
Every time you clean a SWCG with acid you reduce it’s life span.
 
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