Where laundry water comes from

A washer pushes its used water out fast through a drain hose into a standpipe or laundry sink. If the standpipe is partly clogged with lint, too short, or connected to a slow drain line, it overflows during the pump-out and floods the floor behind the machine. That water carries soap, lint and dirt from the laundry, so it is not clean.

Front-loading washers can leak around the door gasket if it is torn or clogged with debris, or when too much regular detergent makes excess suds. Top-loaders can overflow if the water level switch fails. And a cracked tub, a failing pump or a loose internal hose leaks only during a cycle. In older Englewood homes, laundry is often in a basement near a floor drain that may itself be slow or backing up.

Overflow versus burst supply hose

Drain overflowBurst supply hose
Happens during the drain or spin part of a cycleCan happen any time the valves are open
Water is soapy, gray or lintyWater is clear, often hot
Stops when the cycle endsKeeps going until a valve is closed
Standpipe or floor drain is slowHose is split or bulging
Clean as dirty waterUsually clean water at first

Cleaning up after an overflow

  1. Stop the machine and close the valves

    Cancel the cycle, unplug the washer if the outlet is dry and reachable, and close the hot and cold valves.

  2. Remove the water

    Use a wet vacuum or mop. Wear gloves, since drain water carries soap and dirt.

  3. Clean, do not just dry

    Wash hard floors and the lower walls with a household cleaner, then dry them. Carpet or rugs soaked by drain water usually need professional cleaning or replacement.

  4. Find the reason

    Check the standpipe height and drain speed, the drain hose for kinks, and how much detergent is being used. Run an empty rinse and watch.

  5. Look below

    If the laundry room is upstairs or on the main floor, check the ceiling below and any basement walls near the laundry.

Common questions

The floor drain backed up when the washer drained. Is that a sewer problem?

It often means the drain line is partly blocked between the laundry and the sewer. A plumber can clear it; if other drains back up too, the main sewer line may be the issue.

General information for Englewood, not a quote or professional advice. In an emergency, call 911.