Installed the new pump for this season. Old pump was a single speed whisper flow. My pool has a salt cell. I’m filtering for the same number of hours as however at a lower speed. So I’m noticing my chlorine is dropping quickly. I’m assuming that’s because lower speed means less water movement and ultimately less chlorine output. Are there rules of thumb on this?
New Variable speed pump
- Thread starter Janhillatx
- Start date
Oly
Gold Supporter
If....your salt cell is producing at the same generation % for the same number of hours as your old pump then the amount of FC produced is the same regardless of the new pump speed / flow rate.
Daily FC demand is increasing as days are getting longer and pool use increases. I suggest you diagnose your FC loss by trying an Overnight Chlorine Loss Test to determine first if you have an algae issue.
If no algae or high organic demand then your cells production may have declined and/or you need to increase your generation time to meet daily FC demand. If your FC is now low then use liquid chlorine to raise FC quickly and stay well within the proper range and well above the minimum for your CYA. FC/CYA Levels
Daily FC demand is increasing as days are getting longer and pool use increases. I suggest you diagnose your FC loss by trying an Overnight Chlorine Loss Test to determine first if you have an algae issue.
If no algae or high organic demand then your cells production may have declined and/or you need to increase your generation time to meet daily FC demand. If your FC is now low then use liquid chlorine to raise FC quickly and stay well within the proper range and well above the minimum for your CYA. FC/CYA Levels
- May 3, 2014
- 58,717
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
That is not true. As long as the flow switch for the SWCG is satisfied the unit produces the same amount of chlorine regardless of flow rate.
Thanks for the clarification. My salt cell controller thinks I have low salt even though test kit says I’m at 3200. I think that’s creating my low chlorine condition. Will inspect clean cell to see if controller corrects.
- May 3, 2014
- 58,717
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Once I cleaned the cell the controller registers the salt level accurately. Thank you all for setting me on right path. The low salt reading shutting down the cell chlorine generation
- May 3, 2014
- 58,717
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Your water chemistry can be controlled to essentially eliminate calcium scale build up in your SWCG. Keep the CSI between 0 and -0.3