Budster,

Sounds normal to me for a low alkalinity pond that has a low buffering capability and diurnal shifts in PH. I think you will find low alkalinity when you get your tests back. I do know this is typical in some Texas ponds.

I will differ to Eric et al that have more experience with ponds in your region, but from what I hear they usually add lime to bring up the alkalinity.

If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.