Upon arrival, customer informed me when the washing machine runs water comes under the adjacent walls in the garage and bathroom/living room area. As the first step, gave customer price to search for concealed leak. Cut open the drywall around the washing machine box. Made customer aware that Chen Plumbing isn’t responsible for repairs made to cuts to access plumbing. Found that the line is backing up and leaking under the washing machine box. Gave customer the following quote for the job description: Price is to furnish and install new washing machine box and install new Ptrap. Made customer aware of the age and condition of the cast that there is a possibility the cast tee can break on the 2 inch. If this happens, additional pricing will need to be given to replace a section of the 3 inch cast vertical to tie in. Also if the drain is backing up in the 3 inch additional cleaning options will need to be given. Cleaned the work area, put the washing machine back, and tested the drain