What to do about mouse dropings left behind in the walls and insulation?
Check the side of the pipe. The size is probably on there. A couple of options for you. Unscrew the pipe, stick a piece of paper up there and trace the size of the pipe on to the paper. Get a piece of string and wrap it around the pipe. Mark the string. When you go to the store just match up the tracing on the paper or the marks on the string.
False - if the employee has access to both the records and assets, they could falsify the records to cover their theft or misuse of the assets. Say hi to your teacher for me.
The top of your drain pipe needs to be at least as high as the top of your washer or the water will overflow it. It may be clogged also, they make an attachment that goes onto the end of a garden hose that when you attach it and push it down the pipe and turn the water on the hose the attachment expands to block the pipe and it forces the clog down the drain. A snake may work for you also.