Dena,

While Alk of 220 is no HUGE deal, I see no reason to manage your pool water outside of normally accepted ranges. Very high alkalinity will make adjusting your pH problematic if you ever need to do so.

I suggest you reread Ben's VERY detailed post on lowering alkalinity......it will work for you as it has for everyone who tries it......something in your procedure is not correct.

I think I saw your other post (you'd do better not to post the same problem in two places) and you indicated you pointed your return eyeballs upward....that's not aerating. Aerating is creating splash (and lot's of it) so that you are creating thousands of air bubbles. If you are not doing that...that may be the error in your method.