SWG Operation - Lessons Learned

[PatL34]

Thanks Katy for your response.

Your PB is correct in running longer at 50%, and once you have gotten used to the SWCG, you may be able to lower that setting.

The etching you mention could be a function of very low pH, if you are adding Muriatic Acid too much. pH should be between 7.2 - 7.6.

I still have not been able to understand why vinyl pools maintain a steadier pH than plaster pools. Plaster pools will always raise pH because of leaching from the walls, and particularly for new pools that are still being cured. How soon did you add salt after filling?

I waited at least a month before adding salt, after a replaster with Diamond Brite. Another possiblity is if sand was included in the plaster mix. This can be a reason for etching. That's why I had to replaster. The current pool plasterer demonstrated what happens when you don't have sand, by pouring 2 gallons of raw muriatic acid on the steps as the pool was filling up. If there had been any sand, it would have etched immediately.

Hope this helps.

Pat