How to Aerate for high alkalinity?

[waterbear]

Being a new guy, I don't want to argue, but are we sure that the aereation method is really permanent? If it's just adding CO2 to the water, that will only affect the alkalinity temporarily. Once the aeration is off, the CO2 will stabilize with the atmosphere and the alkalinity will (I thought) return to where it was before.

What is the problem with high alkalinity anyway?

TW

CHEMISTY NERD ALERT!
High alkalinity makes it difficult to adjust pH to the proper range and can contribute to cloudiness in the water and scaling. Alkalinity is the measure of the carbonate/bicarbonate/carbonic acid buffer system in the water. By lowering the pH you force the buffer system to more carbonic acid and less bicarbonate/carbonate and by then airating at the lowered pH you drive off the CO2 which lowers the amount of carbonic acid so the equilibrim moves toward the carbonate/bicarbonate side with the effect of the pH rising and the alkalinity lowering. Very little atmospheric CO2 dissolves at the water surface in a pool because of the normal pH and TA levels of a pool. IF the TA and pH are low then atmostpheric CO2 could have a greater impact