Camera inspectionsSee the pipe before anyone digs
Cleaning and repairJetting, root cutting and section repair
Upfront pricingBy the job, not by the hour
Soos Creek owns the main. The side sewer is yours.
Maple Valley doesn’t have a city sewer department. Soos Creek Water and Sewer District serves nearly all of the city, and the city’s comprehensive plan describes how its system works: wastewater from most of Maple Valley flows to lift stations, which pump it into trunk sewers bound for King County’s regional treatment plant in Renton.
Your part is smaller, and it’s entirely yours. Every property has one pipe that connects the house to the district’s main. King County calls it the side sewer and says the property owner is responsible for maintaining it. When it fails, the repair isn’t the district’s job or the city’s. It’s the homeowner’s, and it’s the kind of work we do.
A sewer camera inspection before you buy, remodel or dig
A camera on a flexible cable goes in through a cleanout and sends back video of the inside of the pipe, with a distance reading for everything it passes. You watch the same screen we do.
King County recommends it in two situations that matter in a city where about 85 percent of households own their homes: when you’re buying a house, and before you remodel or landscape, so you know where the side sewer runs before a patio or a tree goes on top of it. It’s also the sensible first step any time a main line backs up more than once.
What goes wrong in a Maple Valley sewer line
King County notes that side sewers are often the age of the house. In Maple Valley, where the majority of homes were built between 1990 and 2010, that means lines roughly 15 to 35 years old. That’s young for a sewer, but not too young for trouble:
- Sags. Ground under a pipe can settle and leave a low spot that holds water and solids.
- Roots. The county says tree roots commonly enter sewer pipes. They need only a fitting or a joint that has opened slightly.
- Grease and wipes built up over years, narrowing the line until it stops.
- Damage from later work: a fence post, a deck footing or a new driveway placed over the line.
- Separated or offset joints where sections have shifted.
From inside the house, these all look alike: repeat backups at the lowest drain, several slow fixtures, gurgling, or a sewage smell near the cleanout. Only the camera tells them apart.
Clean it, repair a section or replace the line
When cleaning is enough
The pipe is intact and the trouble is what’s inside it: roots, grease or years of buildup. A drain machine or the hydro-jetter opens it up, roots are cut back where they’ve come in, and the camera goes through again to confirm the line is clear.
When the pipe needs work
The camera finds pipe that’s cracked through, crushed, or sagging enough to hold water. Cleaning buys a little time and nothing more. That section gets repaired or replaced, and because the camera gave us its location, the digging is limited to that spot.
Soos Creek Water and Sewer District publishes its own standards for side sewers, so before any repair we go over what the district requires for your job.
You’ll have the camera findings and an upfront price for each option, by the job, not by the hour, before anything is opened up. We stand behind the repair, and the warranty depends on the type of work performed.
Not sure it’s the sewer? One slow fixture is a kitchen or bathroom clog. A main line that has backed up once may only need drain cleaning. If it keeps coming back, start with the camera.
Sewer Line Services FAQs
Who owns the sewer line under my Maple Valley yard?
You do. Soos Creek Water and Sewer District owns the mains in the street. The pipe from your house to the main is your side sewer, and King County’s wastewater agency says its maintenance is the property owner’s responsibility. That includes the stretch under your lawn and driveway.
The Maple Valley house I’m buying was built in 2003. Is a sewer camera inspection overkill?
No. King County’s advice is to get a side sewer inspection every time you buy a house, and it doesn’t make an exception for newer ones. A line that age can still have a sag, a separated joint, roots at a fitting or damage from later work in the yard. A standard home inspection doesn’t look inside the pipe. A camera does.
Where does Maple Valley’s sewage go?
According to the city’s comprehensive plan, most of Maple Valley’s wastewater travels through Soos Creek’s lift stations into trunk sewers that carry it to King County’s regional treatment plant in Renton. For a homeowner, the practical point is that there are two owners downstream of your toilet: you, as far as the main, and the district after that.
Does Soos Creek have rules for side sewer repairs?
Yes. The district publishes its own side sewer standards for lines that connect to its mains, so a repair there isn’t only a matter between you and a plumber. When we price a side sewer repair, we’ll go over what the district requires for your job before any work starts.
We’re on septic outside the sewered part of Maple Valley. Can you still camera the line?
Yes. We can inspect and clear the line from the house toward the tank and tell you what we find. The tank and drainfield themselves are work for a King County certified septic professional, and we’ll tell you if the problem looks like it’s on that side.
When will I know what a sewer repair is going to cost?
Before it starts. After the camera inspection we show you what’s in the line, lay out the options and give you a price for each one. It’s priced by the job, not by the hour, and no cleaning, digging or repair begins until you’ve chosen.