That run is going to be saturated with wet whether you have DL or not, the only difference is that the DL will wick it down, the soil under it is loose enough to absorb all the moisture due to being covered with DL..... and the alternative is a wet, slick, stinking moonscape with potholes filled with poopy, dirty water and mud galore. Perfect petri dish for harmful pathogens to grow in. And then they track that stuff right back into the coop and it winds up on the eggs. Ick.
Edited by Beekissed - 10/11/15 at 9:15am