Question:I am designing a septage holding system for temporary accommodation during the Olympics. The building is a modular unit placed on a paved parking lot. It will be in use for three months. My plan is to plunk down a big plastic holding tank and install a pump vault under the home. My problem is: What about freezing? I am considering wrapping the unit with 2-inch blueboard. Do you see any flaws in my plan? I know it will be ugly, and so does the customer, but they declined to go with my more appealing but more expensive options. For
