how often should i clean out the coop and the run i have 8 hens. I have been told i clean it out to much and wasting money. I clean it out about every 2 weeks and the run about the same maybe 3 week at most. I live south of seattle so we get a lot of rain. i put woodchips in the coop and hay in the run to help keep the mud down. any info would help clean more or less thanks