Inconsistent Phosphates

[straightrazorguy]

Originally Posted by toytech

Might want to change out the sand too , could be full of crud . I reused my sand and my skimmers been pulling nasty gunk for 5 months now with no bioload.

I'm about to do an upgrade, and I will be replacing the sand.

Still, has anybody encountered this level of inconsistency? From 0.05 to 0.5 within a couple of weeks? And then back to below 0.1 ppm?