Sump Pump & Sewer Pump Service in Powder Springs, GA

Some of the hardest-working drains in a basement home are outdoors, and many of them depend on a sump pump. An exterior stairwell that steps down to a basement door has a drain at the bottom, and window wells around below-grade windows may have one too. Those drains often run to the sump pit or to a small pump basin of their own. In a Powder Springs home with a stairwell entry, a clogged stairwell drain or a pump that cannot keep up can send water straight under the door.

Where a stairwell drain goes

There are three common arrangements. Some stairwell drains connect to the footing drain around the foundation, which carries the water to the sump pit inside. Some run by gravity to an outlet lower on the lot, where the yard slopes enough to allow it. Others empty into a small pump basin dug beside or beneath the stairwell, with a pump that lifts the water to the surface. Knowing which one you have comes first, and a plumber can often tell by running water into the drain and watching where it shows up.

Why water comes in under the door

• Leaves, mulch and grit have clogged the grate or the pipe below it.
• The sump pump inside cannot handle the extra water a storm sends down the stairwell.
• The small stairwell pump has failed, or its float is buried in debris.
• The gravity line to the yard is crushed, full of roots or blocked at its outlet.
• Roof runoff from a gutter above pours into the stairwell during heavy rain.

Keeping the drain open

Most stairwell trouble starts with debris. Sweep the stairwell regularly, especially in fall, and lift the grate to clear whatever has collected beneath it. A domed or raised strainer resists clogging better than a flat grate. Make sure the gutter above the stairwell is clean and its downspout empties well away from the opening. If the stairwell can take a cover or awning, the amount of rain falling into it drops considerably. These small habits spare the pump a lot of work.

When the pump is the problem

If the stairwell drains into the main sump, a heavy storm can deliver water from the stairwell, the drain tile and the window wells all at once. A pump that copes on an ordinary day may fall behind then, and water backs up the drain line until it floods the stairwell. Timing how fast the pit fills during rain shows whether the pump is undersized. A dedicated stairwell pump, meanwhile, sits outdoors in a small basin exposed to leaves and silt, so its switch and intake need regular cleaning, and its cord and outlet must suit an outdoor location.

Repairs that may be needed

Clearing a clogged line with a drain cable often solves the problem. Recurring buildup deeper in the pipe can call for hydro jetting, while a buried line that is crushed or root-damaged may need to be dug up and replaced, which is where drain excavation comes in. On the pump side, the fix may be cleaning the basin, replacing a worn pump or float, upsizing the main sump pump or adding a second pump dedicated to the stairwell. If the main sump also gets a battery backup, Alpha's Georgia sump and sewer pump page explains how one takes over.

Powder Springs permit rules

Stairwell drain work that adds a pump basin or new piping is the kind of job to clear with the city first. Powder Springs generally expects a permit before a plumbing system is installed, altered or replaced, as its permitting page explains, and permits go to contractors who hold a license or to owners who live in the home.

Questions about stairwell drains in Powder Springs

Should a basement stairwell drain connect to the sump pit?

It can, and many do, but the sump then has to handle everything the stairwell collects in a downpour on top of its usual load. If the pump struggles during storms, a separate gravity line to a low point on the lot, or a dedicated stairwell pump, may work better. A plumber can compare how much water the stairwell gathers with what the current pump moves.

Why does the stairwell flood only in very heavy rain?

In ordinary rain the drain and pump keep up. In a downpour the stairwell collects water faster than a partly clogged grate can pass it, or the pump receiving it falls behind and the line backs up. Overflowing gutters above the stairwell make matters worse. Clearing the grate and gutter is the first step; if flooding continues, the line or the pump needs checking.

Can I pour water down the stairwell drain to test it?

Yes, that is a sensible test. Run a garden hose into the drain for several minutes and watch whether water pools or disappears steadily. If the drain connects to the sump, check that water arrives in the pit and the pump starts. Water that backs up almost at once points to a blockage close to the grate, while slow draining after a few minutes suggests a problem farther along.

Keeping water out of the stairwell

Note where the stairwell drain seems to go and how the pump behaved in the last heavy storm. If water keeps finding its way under a basement door in Powder Springs, let Alpha Plumbing and Sewer take a look; the number is (404) 409-4448.