Dries without treatment are very effective. Yes harder to see but flies that sit deep in the surface can produce strikes that would not of happened with a perfectly floating on top dry fly presentation.
Earlier this week we got a tonne of rain, we are now releasing at the dam to compensate for this. Maybe by the weekend we will be back to normal. There is a good chance this will be the case. The dirty river algae bloom effect will still be here but at least the river flows will manageable.