Plumbing tips · November 7, 2026
When the laundry box overflows
A washer pumps a lot of water out fast. If the drain behind it cannot keep up, the water comes back up out of the pipe and onto the floor.
Lint and fibers
Every load sends lint, hair and bits of fabric down the drain. Over time they build up in the standpipe and the trap below it, along with soap, until the drain slows. This is the most common reason.
A drain that is too small or too short
Older laundry drains are often a smaller pipe than a modern washer needs, or the standpipe is too short to hold the surge. Newer high-efficiency machines pump hard and fast and show the problem.
When it is more than the laundry
If the tub or shower gurgles or backs up when the washer drains, or the toilet bubbles, the clog is further down in the main line. That needs the line cleaned, not just the laundry drain.
Stop it before it floods
Turn the washer off as soon as you see water at the box. Do not run another load until the drain is cleared, and check the floor and the wall behind the machine for water.
Questions we get asked
Should I put a lint trap on the washer hose?
Yes. A mesh lint catcher on the end of the drain hose catches most of it. Empty or replace it often so it does not become the clog.Why does it only back up on a big load?
A partly clogged drain can handle a slow trickle but not the full pump-out of a large load. That is a sign the line needs clearing soon.Can I push the drain hose deeper into the standpipe?
No. The hose needs an air gap around it. Sealing it in or pushing it too deep can siphon water back out of the washer.Plumbing questions we answer
Where we go
Parker, Wise and Tarrant County, out of the shop in Springtown. Springtown, Weatherford, Azle, Boyd, Decatur, Newark, Millsap, Fort Worth and the country in between.
Call 817-487-8866