Washing machine shut off valve not completely turning off when hose is removed. Customer agreed to our quote to replace the washing machine box.I cut a roughly 8 inch by 12. Inch hole directly beneath the washing machine box and removed. After draining down the house, I reinstalled a new washing machine box with hammer arresters. Turn the water back onto the house and primed air out of the lines and checked for leaks. No, leaks.Thank you for choosing and trusting TE for your plumbing needs