why did my skimmer overflow?

[doch]

Last night the level in my collection CIO was about an inch. This morning it'a full and overflowing. I adjust the valves and I can't get the level to go down. I don't see any issues , any ideas?

[FishyFishy!]

Could it have been due to a water level increase or decrease in the sump? Did you dose or add anything to the system? Feed something different?

I find when my water level lowers or raises if my ATO resevoir is low, or my herbie is being problematic, thats when I get overflows from my skimmer.

[daplatapus]

Did you use any reef epoxy? Makes my skimmer go nuts every time.

[wmcinnes]

^ +1

This happened to me last night!

[Seriak]

Mine overflows if I don't change my filter sock before it overflows.

[doch]

No changes in level, dosing, food or epoxy. Like I said though, when I turned the level adjust valve to lower the level in the Skimmer it did nothing. I can't get it to come down at all. I removed the collection cup and am just letting it overflow into the sump.