dwc drain?

I don't believe i have ideal dissolved oxygen levels, and no money to purchase more air pumps

however i have the ability to drain my dwc buckets very easily, for any amount of time. (down to 1 second)

I could literally have the buckets drain, and immediately fill back up, leaving the roots without contact of water for about 45 seconds.

I would have to think this would be beneficial for oxygen levels in cases where you don't have enough air pumps
what do you all think?

sounds strange kind of like a constant dwc or flood and drain. You could just set your buckets up as a flood and drain with 15 minute fills every 3 hrs.