My run is VERY muddy today. And we're expecting 11 inches of rain on Sunday. I did my best to set up my run to divert the water, but there's not much I can do when faced with nearly a foot of water- haha!
For this current situation, I'm using wood pellets. They are doing a great job absorbing the water! I'm also laying on lots of pine shavings just to try to keep the biddies above the water.
We'll see how well that works on Sunday....
If the coop is getting muddy you're better off finding the source of the issue and fixing it. Putting in lime or another additive is just a bandaid, and doesn't address the core problem (leaks, drainage issue, coop location, etc.)
I don't know about limestone, but my farmer-friends tell me I can use food-grade lime (maybe the same stuff?) in my run. I haven't tried it, yet, mainly because they follow the recommendation with a warning to cover the lime with other bedding. Apparently direct contact of lime on chicken feet can cause irritation. Seems counter-productive to me!
I conquered the mud issue by adding pine needles and leaves to the floor of the run and building a small berm along the back end to block drainage. I also added some 3-6 inch high tree stump pieces so my birds could climb up if it gets wet again. So far, so good!
Thank you all!