So my duck house and pen is located on our wood chips. the ducks love them because they can tunnel under them and get all the yummy bugs. they never try to eat the wood chips. but today i was trying to clean the woodchips and couldn't find an effective way to do it. any ideas? they are covered in duck poo. i took them out and sprayed them, soaked them and did everything i could think of but they were STILL dirty!! i know most of you are going to say, get more wood chips, but it would be easier to clean the dirty ones because we move the house and pen around and soon there will be no clean space.