8 Signs Your Sump or Sewage Pump Is Failing (Houston Homeowner's Guide)

These two pumps look similar in the basin. They do very different jobs, and the wrong advice can cost you.

A sump pump moves groundwater only. It handles clean water and cannot pass solids. A sewage ejector pump moves waste and gray water from fixtures that sit below your sewer line. That includes toilets, showers, and laundry drains on a lower level. The two discharge to entirely different places — one to grade or storm drainage, one to the sanitary sewer.

Around Houston, you will usually find one of these in a few places:

• A basin serving a below-grade bathroom added to an older home
• An elevator pit in a townhome or mid-rise
• A crawlspace under a pier-and-beam house
• A yard basin tied to a French drain system

Putting the wrong pump in the wrong basin causes real trouble. A sump pump asked to move waste will clog and burn out. That leads to backups and unsanitary conditions in your home.

Here is a 30-second check. Look at what drains into the basin. If a toilet, shower, or laundry line feeds it, you have a sewage ejector pump. If only groundwater or a drain line feeds it, you have a sump pump.

Each sign below points to a different problem inside the pump or the line it feeds.

1. The motor hums but water does not move. You hear the pump running, yet the level in the basin stays put. That usually means a clogged intake screen, a stuck impeller, or a blocked discharge pipe.
2. The pump runs nonstop. A pump that never shuts off may have a failed check valve letting water drain back into the basin. A float stuck in the on position does the same thing. Sometimes the pump is simply too small for the water coming in.
3. It clicks on and off every few minutes. Short cycling wears out the motor fast. The float may be set wrong, or the basin may be too small for the pump.
4. You hear grinding or rattling. A healthy pump runs with a low, steady hum. Grinding, rattling, or a new loud noise points to worn bearings, a damaged impeller, or debris caught inside.
5. The breaker keeps tripping. A pump that trips a breaker is drawing too much power. Causes include a failing motor, moisture in the wiring, or a jammed impeller. Do not keep resetting it. Repeated resets create a fire risk.
6. You see rust or orange sludge. Orange, gel-like buildup comes from iron bacteria feeding on minerals in the water. It coats the float and clogs the intake. Rust around the motor base means corrosion is already underway.
7. Water pools while the pump runs. If water sits on the floor with the pump working, the pump is losing the race. The discharge line may be blocked, or the pump may be undersized.
8. The pump is past seven years old. Age alone is not a failure. Age plus any sign above means you are running on borrowed time.

A sewer smell near the basin is not a nuisance. It means the system is open to your home.

That odor usually points to a broken lid seal, a basin filled past its normal level, or a pump that has stopped moving waste out. Sewer gas carries hydrogen sulfide, which is a health concern at higher levels. Do not treat the smell as something to air out and ignore.

Watch for these signs alongside the odor:

• Gurgling from a nearby drain each time the pump cycles
• Slow drainage at the toilet, shower, or laundry the pump serves
• Waste water rising in the basin instead of clearing
• Any backup at a lower-level fixture

Here is one call we see often. A homeowner reports a sewer smell and assumes the pump is dead. The pump turns out to be fine. A failed check valve was letting waste flow back into the basin after every cycle. The fix was small, but only because they called before the basin overflowed.

Shut off power to the pump if you can reach the switch safely. Stop using the fixtures that drain into that basin. Then call us.

For clogs and backups tied to the line itself, see our clogged drain repair. If waste is already backing up into your home, our 24/7 emergency plumbers in Houston can help the same day.

Pumps here live a harder life than the manufacturer planned for.

In much of the country, a sump pump runs steadily through a wet season. Around Houston, it sits idle for weeks and then works flat out during a storm. That stop-start pattern is hard on motors and floats. A pump that rarely runs also loses life, because seals dry out and grit settles around the impeller.

Our water and soil add to the problem:

• Hard water leaves mineral scale on floats and switches, so they stick
• Clay soil pushes silt and grit into the basin, which wears the impeller early
• Storm outages cut power at the exact moment the pump matters most
• Flood-mitigation basins added after past storms often sit unused for years

Battery backups are part of this too. Many homeowners install one and never test it. A backup battery loses capacity slowly, so it can look fine and still fail under load. Test it once a year and replace it on schedule, not on failure.

We see this pattern across The Woodlands, Kingwood, Spring, Humble, Atascocita, and Jersey Village. Older homes and newer ones both have it. The basin gets covered, forgotten, and then asked to perform during the worst weather of the year.

You do not need tools to find out if your pump still works. You need a bucket and five minutes.

Do this twice a year. Do it again before hurricane season starts.

• Clear the area first. Move anything stored around the basin. Make sure the cord is dry and plugged into a working outlet.
• Lift the lid carefully. Keep your hands out of the basin. If you need to reach inside for any reason, cut power at the breaker first.
• Pour water in slowly. Use five to ten gallons. Pour until the float lifts.
• Watch what happens. The pump should start on its own within a few seconds.
• Listen at the discharge line. You should hear water leaving the pipe. A running motor with a silent discharge line means water is not going anywhere.
• Watch it shut off. The pump should empty the basin, then stop cleanly on its own.

A pass looks simple. The pump starts, the level drops, the pump stops. A fail looks like a motor that hums without moving water, a pump that will not start, or one that keeps running after the basin is empty.

For a sewage ejector pump, run water through the fixture it serves instead of pouring into the basin. Never open a sewage basin to test it.

This test tells you whether the pump runs. It does not tell you how much life is left. When we inspect a pump, we check the amp draw against the rating, test the check valve for backflow, and trace the discharge line to where it terminates. Those three checks catch failures that a bucket test cannot.

Both sump pumps and sewage ejector pumps run about seven to ten years. Good care can stretch that. Heavy use and grit cut it short.

Some problems are worth fixing. Others tell you the pump is done.

Here is the practical rule we use. Age by itself is not a reason to replace a working pump. Age plus a second symptom is.

A six-year-old pump with a sticky float is a repair. A nine-year-old pump making grinding noises is a replacement waiting to happen. Fixing one part on a worn pump often just moves the failure to the next part.

We repair and service sump pumps and sewage ejector pumps from all major manufacturers. Our technicians work on the equipment you already have, whatever brand sits in your basin. If replacement makes more sense, we explain why before any work starts.

Track the install date. Write it on the lid or keep it with your home records. Then you are not guessing when a symptom shows up.

A failing pump rarely picks a convenient time. It quits during the storm, not the week before.

We have served Houston homeowners since 2003. Our licensed, background-checked technicians handle sump pumps and sewage ejector pumps across The Woodlands, Kingwood, Spring, Humble, Atascocita, Jersey Village, Tomball, Conroe, Magnolia, and Porter.

Our team answers the phone 24 hours a day, every day of the year, including holidays. Same-day service is available across the Houston metro area. If waste is backing up or water is on your floor, tell us when you call and we will prioritize the visit.

Business Address: 4001 Kendrick Plaza Dr, Houston, TX 77032

Phone: (713) 812-7070

Open 24 Hours, Including Holidays