Customer wishes to have customer supplied washer and dryer installed. Appears to be a drain on backside of where they wish to have washer installed but explained it may be for the roof drains and not a sewer drain. Recommended performing a proper camera inspection to try and map our sewer drain locations. Will submit estimate for hooking up to exisiring drain if they desire, as well as an estimate for performing camera inspection to determine closest sewer drain to connect to