"Household plumbing" refers to the system of pipes, fixtures, and fittings that deliver water into a house and remove waste water, allowing for essential activities like using the toilet, washing dishes, and taking showers. Full definition
Whether a fluid is flowing through household plumbing or industrial oil and gas pipelines, when it runs slowly its flow is smooth, but when it runs quickly its flow is more chaotic. (sciencedaily.com)
Say your book focuses on every day tips to fix household plumbing. (diggypod.com)