Hydro Jetting in Ontario, CA

Is the clog in my line or the city's?

Ontario Municipal Utilities Company manages the City's gravity sewer lines, and the wastewater is treated by the Inland Empire Utilities Agency. The main in the street is a city matter; the building drain and lateral on your property are what a homeowner hires a plumber to clean. A quick test: if only your house is backing up, the problem is almost always on your side. If neighbors on the same street are having trouble at the same time, call OMUC customer service at (909) 395-2050 so the city can check its line.

Ontario's development history spreads housing across many decades. The city was founded in 1881 by the Chaffey brothers as an irrigated citrus colony, and the median home today was built around 1980. Newer neighborhoods in Ontario Ranch are recent construction. That range means you could have anything from cast iron and clay in older central blocks to plastic pipe in the newest tracts.

Why does my drain keep clogging after it was snaked?

A cable opens a channel through the blockage, but the grease, soap film or scale lining the pipe stays put, and new debris catches on it within weeks. Jetting removes that lining along the whole length of the pipe. In older lines, roots that a cable only trims are cut back across the full diameter. Ontario's own groundwater averages 124 mg/L hardness in the city's 2025 report, with some purchased groundwater harder still, so mineral film can be part of the coating in older drains.

Will jetting hurt an older pipe, and when is it not the answer?

In a sound pipe, jetting is safe, and plumbers lower the pressure and choose gentler nozzles for aging cast iron or clay. The risk is a pipe that is already cracked, separated or collapsed, which is why a camera inspection often comes first. If the camera shows a broken section, cleaning only buys time; the fix is a repair or replacement. Ontario's Building Department handles those permits, with applications submitted electronically through the City's Citizen Portal.

A note for Ontario homeowners

When you call the number on this page, mention the home's approximate age, which drains are affected and any earlier cleanings or camera reports. Until a plumber arrives, keep laundry, dishwashing and showers to a minimum so water does not back up further.