The short answer: no, you should not pressure wash artificial grass.
Here's why — and what to do instead.
Pressure washers deliver 1,500–3,000 PSI of water pressure. Artificial turf fibers are designed to withstand foot traffic and weather — not direct high-pressure streams. Here's what happens when you pressure wash turf:
1. Fiber damage: High pressure frays and splits the synthetic blades. Once fibers are frayed, they matte down permanently and can't be restored.
2. Infill displacement: The pressure blasts infill out of the turf base. Infill is what weighs the turf down and provides cushioning. Without it, the turf wrinkles, shifts, and becomes a trip hazard.
3. Backing damage: The backing layer that holds the fibers and provides drainage can delaminate under pressure. Once the backing is compromised, the turf is done.
4. Drainage disruption: Pressure washing forces water sideways through the infill, redistributing contamination rather than removing it. You end up with the same amount of bacteria and odor — just in different locations.
5. Warranty void: Most turf manufacturers explicitly state that pressure washing voids the warranty. If you damage the turf, you're paying for replacement out of pocket.
Yes — and some of them cause serious damage. The videos that show 'great results' usually feature: - Brand new turf with no infill (nothing to displace) - Low pressure settings (800 PSI, which is basically a hose) - Wide fan nozzles (which spread the pressure) - Turf that looks clean in the video but mats down within weeks
Even when done 'carefully,' pressure washing addresses only the surface. It doesn't penetrate the infill layer where odor and bacteria live. You get a yard that looks clean for a week and smells again the next weekend.
What About Power Brooms? Power brooms (rotating brush machines) are different from pressure washers. They use mechanical brushing, not water pressure. When used correctly by professionals, power brooms are safe and effective for fiber restoration and infill grooming.
However, consumer-grade power brooms can still damage turf if used too aggressively. Professional equipment has adjustable settings and trained operators who know the right pressure for each turf type.
The right method for cleaning artificial turf:
1. Low-pressure rinse: Garden hose pressure (40–60 PSI) is plenty for surface flushing 2. Enzyme treatment: Breaks down organic contamination in the infill — the actual source of odor and bacteria 3. Mechanical brushing: Stiff-bristle brooming or professional power brushing restores fibers without damaging them 4. Infill maintenance: Periodic infill leveling and top-up to maintain proper support
This approach cleans the turf thoroughly without risking damage. It's what professional turf cleaners use — and it's what turf manufacturers recommend.
The choice is pretty clear.
Even heavily contaminated turf doesn't need pressure washing. The contamination is in the infill, not on the surface. Pressure washing the surface doesn't help — enzyme treatment that penetrates the infill is the solution.
If your turf has visible staining (food spills, oil, etc.), spot cleaning with a mild detergent and soft brush is safe. For full-yard contamination and odor, professional enzyme treatment is the right call.
Pressure washing artificial turf is like using a sledgehammer to clean a window. It might remove some dirt, but the damage it causes is far worse than the problem you're trying to solve.
Stick with gentle rinsing, enzyme treatment, and professional cleaning. Your turf (and your wallet) will thank you.
Questions About Your Turf? Call or text (858) 275-9259. Free assessment and honest advice. Serving all of San Diego County.