The washing machine, dryer, water heater, breaker panel and additional storage will be designed into the small space. In this video I plumb in all the waste lines, that's the drains to all the fixtures that run down into the sewer, or in some cases, a septic tank. I'm using a combination of pipe sizes such as 1.5, 2 and 3 inch PVC. Most of the pipe is in the bathroom/laundry room walls with the remaining lines in the crawl space that hook to the sewer