Why does my artificial turf smell like rotten eggs?
A rotten-egg smell on artificial turf is hydrogen sulfide, produced by bacteria working without oxygen in soil or organic matter that has stayed waterlogged. On turf that almost always means the base underneath has no working drainage and has gone anaerobic in a low spot. A clean and flush helps and may clear a mild case confined to the infill, but a base with no drainage needs the turf lifted and the base rebuilt to fully stop it. TIMELESS Turf Restoration diagnoses which one you have.
Why sulfur specifically
Hydrogen sulfide is what certain bacteria produce when they break down organic matter in the total absence of oxygen, which is why the classic place to smell it is a swamp, a clogged storm drain or standing floodwater. On turf, that airless, waterlogged condition happens when a low spot or a poorly built base holds water against organic matter, whether that is old compacted infill, buried leaf litter, or soil, for days at a time with nowhere for air to get in. It is a different mechanism from the ammonia of urine or the musty compounds of surface mildew, and it points to standing water rather than a dirty surface.
How to check
Find the spot the smell is strongest and press your palm flat on the turf there an hour after a rain. Squelching, or water rising around your fingers, confirms saturation. Compare it to a normal area of the yard that only feels damp. If the smell is strongest at one low point that always holds water, and the ground around it drains fine, the base under that spot has settled or was never built with drainage. If the whole yard smells and squelches after rain, the infill and backing have clogged broadly, which is the more treatable case.
Brian prices it by square foot before any work starts, and every job ends blown clean.
What fixes it
Where the smell is spread across clogged, compacted infill, a deep clean that power-brushes and flushes the organic layer out, followed by infill replacement where it has bonded into a pan, restores drainage and usually stops the smell. Where it is one saturated low spot with a sound base everywhere else, cleaning will not reach the cause; the turf in that section needs lifting so the base can be regraded and rebuilt with drainage, which is a job for our sister company. We tell you which case you have before quoting anything.
Keeping it from coming back
Once drainage is working, keep debris off the turf so the infill does not clog again, and route any downspout or hose runoff away from low spots. A yard that smells of sulfur every summer despite a sound base is telling you the grading still needs work, and that is worth fixing once rather than living with.
Free quote, priced by square foot. You approve any add-on before we do it.
