pH keeps creeping up

[mariner09]

I've also been experiencing pH creep. Over the last week, it's been hovering up around 7.8 - 8.0. To try something, I bought a bottle of pH down at Wal-Mart. I added about 24oz and got it down to 7.6. A few days later it was back up. Just finished the bottle this morning, 3 lbs of pH down in less than a week???

My TA is around 160.

I guess my bigger question is, is it OK to keep the pH up around 7.8?

We have had some big storms last week and more wind this week than usual, nice cold front came through in the middle of the week.

Come to think of it, one of my jets is pointed towards the surface and I have seen bubbles, maybe I need to lube the O-ring on the pump and re-prime..