Trap Siphoning Causes: A Garland Guide

2026-04-08

Plumbing Guide

When a drain trap loses its water, sewer gas comes up and the drain smells, and siphoning is the usual cause. The water seal is being pulled out by a venting or drainage problem.

Trap Siphoning Causes: A Garland Guide

The vent

A blocked or missing vent lets the draining water pull air through the trap, siphoning the seal out. hard water is common, and summer heat and shifting soils put pressure on underground lines In Garland, the vent and the trap are checked together.

The slope

A drain that is too steep can pull the water past the trap and siphon it, and the slope is corrected to fix it.

The long arm

A trap arm that is too long can let the drain siphon the trap, and shortening it or re-venting solves it.

The dry

A trap that dries from lack of use is not siphoning, but it has the same smell, and water or a primer fixes it.

The call

Find what is pulling the seal. Call 888-217-3585 and Garland Plumbing Pros will match you with a Garland pro.

Plumbing in Garland: what to know

In Garland, hard water is common, and summer heat and shifting soils put pressure on underground lines. Pros in our network know the local quirks and bring the right parts on the first visit.

Across Rockwall County — from Rowlett, Sachse and Richardson to ZIP codes like 75040, 75041, 75042 — homeowners deal with the same kinds of issues. The tips above apply locally, and when a job goes beyond a quick fix, a vetted local pro is only a call away.

Need a hand in Garland?

If a plumbing issue is beyond a quick fix, don't wait for it to get worse. Call 888-217-3585 and Garland Plumbing Pros will match you with a vetted local pro — usually within minutes. Learn more about plumbing help in Garland.

Plumbing emergency or urgent repair? Call now.

Call 888-217-3585 and we'll match you with a vetted plumbing pro in Garland — usually within minutes.

Emergency? Call Now888-217-3585
Emergency? Call Now888-217-3585