Oops! sorry I didn't catch that one. I'm not an expert at pool care yet!

If you are concerned with the ALK level, here are a couple of links you should check out:

http://www.poolsolutions.com/gd/total-alkalinity-in-swimming-pools.html

and

http://www.poolsolutions.com/gd/lowering-swimming-pool-alkalinity-step-by-step.html

Both are from the Pool guides section at the sister site to these forums. Actually, if you haven't gone there, why not take an hour or three and do some reading? I can assure you, it will help you out in caring for your pool. I know it helped me! Lots of great info there.

Hope you can get to swim over this weekend!

Charlie