Can I flush the toilet during a septic backup?

No. Every flush adds water that has nowhere to go. Hold off on all water use until a septic company has found and fixed the problem.

Why did my system back up after heavy rain?

Saturated soil can stop a drain field from absorbing water, and surface water can seep into tanks and lids. The system may recover as the ground dries, but repeated problems after rain point to a drain field or drainage issue that should be inspected.

Should I call a plumber or a septic company?

If only one fixture is slow, a plumber may clear the clog. If several drains are slow or backing up, or there is an alarm or odor near the tank, call a septic company.

Is SepticTank.com the company that comes out?

No. SepticTank.com connects you with an independent local septic company that serves Mattawa. That company provides the service and sets its own prices and availability.

Septic Backup or Alarm in Mattawa? Get Help Fast

When a septic system fails suddenly, homeowners in Mattawa need two things: to keep the problem from spreading and to get a qualified crew on site. Most emergencies trace back to a full tank, a clogged line or a failed pump.

A local company that works across Grant County can find the cause, pump the tank if needed and get your plumbing working again.

First steps in a septic emergency

Turn off or stop using every source of water you can: no showers, laundry, dishwasher or flushing. Keep children and pets away from any sewage, indoors or out, and do not try to open the tank yourself. If an alarm is sounding, silence it and leave the breaker on unless it keeps tripping.

Common causes of septic emergencies

A tank that is overdue for pumping is the most common cause. Other frequent culprits include a clogged line between the house and the tank or a blocked outlet baffle or filter. A failed pump or a drain field that can no longer absorb water can also cause a sudden backup. Heavy rain can make a struggling drain field fail suddenly. Tree roots, crushed pipes and items like wipes or grease also cause blockages.

If your septic alarm is going off

An alarm on a pump chamber or aerobic unit usually means the water level is too high. Many alarms have a silence button; press it, then cut back on water use. Check that the pump's breaker has not tripped. If the alarm comes back on after a few hours, the pump, float switch or control panel may have failed and needs service. Do not open the pump chamber yourself, since it contains wastewater and electrical equipment.

What the septic company will do

Expect the crew to ask questions first, then locate the tank and check the water level. If the tank is full, they will pump it so the house can drain. With the tank open, they can see whether the outlet, filter or baffles are blocked, and whether water is flowing back from the drain field, which points to a field problem. For pump systems they will test the pump, float and panel. You should get a clear explanation of the cause and your options.

Preventing the next emergency

Most emergencies are preventable. Pump the tank on a regular schedule, have the effluent filter cleaned, and keep grease, wipes and chemicals out of the drains. Spread laundry across the week rather than doing many loads in one day. Keep vehicles and heavy equipment off the tank and drain field, and direct roof and yard drainage away from them. If you have a pump system, test the alarm now and then.

Questions to ask when you call

Ask how soon a crew can arrive and whether there is an extra charge for after-hours service. Ask whether they can pump and diagnose on the same trip. Confirm they work on your type of system, especially if you have a pump, aerobic unit or mound. After the visit, ask for a written summary of what failed, what was done and what still needs attention.

Emergency septic help around Mattawa

Septic emergencies in Mattawa and nearby towns such as Royal City are often handled by the same local companies that do routine pumping, and many keep a truck available after hours. When you call, give the address, describe what is backing up and mention any alarm so they bring the right equipment.

Local conditions behind septic emergencies in Mattawa

Most mapped soils near Mattawa are rated very limited for septic absorption, so a drain field that is already working hard can back up quickly when something else goes wrong. With only about 11 inches of precipitation a year, rain is rarely the trigger here. Heavy water use and clogs are more common causes. About 2 months below freezing each year also bring the risk of frozen lines, especially in shallow pipes or homes left empty.

Local conditions in Mattawa that affect emergency septic service

Among the mapped soils within about two miles of central Mattawa, the USDA soil survey rates 77% as very limited for septic absorption fields, 3% as somewhat limited and 21% as not limited. The most common drainage class is somewhat excessively drained. Soils like these often call for careful system design, such as a larger drain field, a mound or another engineered system, and a site evaluation before any new installation or replacement.

Mattawa averages about 11 inches of precipitation a year, and December is usually the wettest month. Average temperatures stay below freezing for about 2 months a year, with December averaging 31°F, so tank lids and shallow lines benefit from a layer of snow or mulch rather than being cleared bare.

Sources: USDA NRCS Soil Survey (SSURGO), Soil Data Access; NASA POWER long-term climatology. Soil ratings describe mapped soil types near the city center and do not replace a site evaluation of your property.

What the soil around Mattawa means for emergency septic service

By drainage class, the USDA soil survey maps the land around Mattawa as 45% somewhat excessively drained, 33% well drained, 22% excessively drained. Backups and wet spots are most common after heavy rain, so it helps to know where your tank lid and cleanout are before you need them.

Source: USDA NRCS Soil Survey (SSURGO), Soil Data Access

Septic companies near Mattawa

These are the septic companies in our directory closest to Mattawa, with straight-line distance. Call any of them directly, or send one request and we will pass it to the best match.

Septic Design Specialists LLC, Selah, WA, 28.9 mi
Allstate Septic, Sunnyside, WA, 29.6 mi
Bill's Septic Service, Union Gap, WA, 30.0 mi
Acme Septic Service, Union Gap, WA, 30.0 mi
Cliff's Septic, Union Gap, WA, 30.0 mi
Lowrie Glenn Backhoe, Selah, WA, 30.6 mi

Emergency Septic Service in nearby towns

We also cover emergency septic service in these towns near Mattawa:

Royal City, 17.7 mi

About Mattawa, WA

Mattawa is in Grant County, Washington. About 3,761 people live there, across 1.0 square miles of land (about 3,757 per square mile).

Emergency Septic Service questions in Mattawa

Can I flush the toilet during a septic backup?: No. Every flush adds water that has nowhere to go. Hold off on all water use until a septic company has found and fixed the problem.
Why did my system back up after heavy rain?: Saturated soil can stop a drain field from absorbing water, and surface water can seep into tanks and lids. The system may recover as the ground dries, but repeated problems after rain point to a drain field or drainage issue that should be inspected.
Should I call a plumber or a septic company?: If only one fixture is slow, a plumber may clear the clog. If several drains are slow or backing up, or there is an alarm or odor near the tank, call a septic company.
Is SepticTank.com the company that comes out?: No. SepticTank.com connects you with an independent local septic company that serves Mattawa. That company provides the service and sets its own prices and availability.