Wondering if there is a way to fix this issue? My coop is covered in pine shavings - however, sometimes the girls will bump into the waterer (or, I will) and water will spill. If I don't realize it right away - and if the pine gets wet, it smells like urine. 1) Is this normal? 2) How can I avoid this? 3) Do I have to clean out ALL of the pine shavings or do I just layer dry on top? HELP!?!?