What it means
ABS pipe is a rigid thermoplastic used for drain, waste, and vent (DWV) lines. It is joined with solvent cement and handles household wastewater well when installed correctly.
Unlike pressurized supply piping, ABS is rated for gravity drainage. Joints, supports, and transitions to other materials must follow code to prevent leaks and root intrusion.
Why it matters in Santa Cruz County
Santa Cruz County homes from the 1960s through 1980s often have ABS drain lines under slabs and in crawl spaces. Coastal humidity and hillside soil movement can stress joints over time, especially where pipes pass through foundations in Aptos, Capitola, and older Watsonville neighborhoods.
Homeowner tip
If you see cracked black pipe or recurring drain smells near a wall or slab, have a plumber inspect before a small leak becomes a major repair.
Related Wade's services
Related glossary terms
Also explore the Septic Glossary or call 831.225.4344 with questions about your property.