Simple Green Oxy Solve Total Outdoor Cleaner Concentrate is the best deck cleaner for pressure washer for most buyers because its peroxide-based formula removes outdoor grime without chlorine bleach. It is a concentrated outdoor cleaner, so one bottle can make several gallons of working solution for decks, fences, patios, and other washable surfaces.
This guide is for homeowners cleaning wood, composite, or sealed decks before staining, hosting, or routine upkeep. The key factors are surface compatibility, dilution strength, and coverage per bottle. A formula that works across several materials can save time, but you still need to follow the label and rinse thoroughly. The 6 picks below are ranked with clear reasons and honest drawbacks for each, helping you match the cleaner to your surface, equipment, and cleanup job.
Quick Comparison
| # | Product | Best For | Price | |
|---|---|---|---|---|
| 1 | Simple Green Oxy Solve Total Outdoor Cleaner Concentrate | General Outdoor Stain Removal | ~$24 | View → |
| 2 | Simple Green Oxy Solve Deck & Fence Pressure Washer Cleaner | Pressure Washing Decks And Fences | ~$24 | View → |
| 3 | ZEP INC Deck/Fence Wash | Routine Wood Surface Cleaning | ~$13 | View → |
| 4 | Krud Kutter Multi-Purpose Pressure Washer Cleaner | Versatile Multi-Surface Washing | ~$16 | View → |
| 5 | Oxy Solve House & Siding Pressure Washer Cleaner | House Siding Maintenance | ~$20 | View → |
| 6 | Hourleey 14-Inch Pressure Washer Surface Cleaner | Driveway And Patio Cleaning | ~$36 | View → |
6 Top Deck Cleaner Picks
These six deck cleaners are ranked from sixth to first, counting down to the top pick.
6. Hourleey 14-Inch Pressure Washer Surface Cleaner
Best for: Driveway and patio cleaning
The Hourleey 14-inch pressure washer surface cleaner is a wheeled attachment for flat outdoor surfaces. Its stainless steel body covers a 14-inch wheel-to-wheel path, while four wheels help guide it across concrete, patios, sidewalks, decks, and pathways. A 1/4-inch quick connector fits compatible pressure-washer wands. It is rated for 2,000 to 4,000 PSI, with the manufacturer suggesting a washer rated at 2,500 PSI or higher for stronger cleaning.
The package includes two extension wands, two replacement nozzles, four O-rings, a nozzle-cleaning tool, and thread seal tape. Those spare parts can help when a seal wears out or a spray tip clogs. The stainless steel construction and heavy-duty bearing should provide better durability than a lightweight plastic attachment. Its added weight may also help it stay steady under pressure. Around $36, it offers a wide cleaning path for larger flat areas, though results depend on your pressure washer’s output and the surface condition.
Pros
- Four wheels make the cleaner easier to move across broad, flat areas.
- The 14-inch width covers more ground per pass than a narrow spray wand.
- Spare nozzles, O-rings, seal tape, and a cleaning tool add useful maintenance support.
Cons
- It works best with a pressure washer rated at 2,500 PSI or higher, limiting weaker machines.
- The attachment suits flat surfaces, not stairs, vertical walls, uneven stone, or tight corners.
5. Oxy Solve House & Siding Pressure Washer Cleaner
Best for: Cleaning large, stained exterior surfaces
Oxy Solve House and Siding Pressure Washer Cleaner is a 1-gallon concentrate for outdoor cleaning. It targets discoloration from mold, mildew, algae, and moss on vinyl, aluminum, wood, brick, and stucco. The formula uses peroxide to loosen grime, rather than relying on harsher chemical cleaners. The company also describes it as orally non-toxic, though it still requires careful handling around children, pets, plants, and food areas.
Coverage is the strongest practical feature here. One gallon can clean up to 6,400 square feet when mixed and used as directed, making it a better fit for full homes, long siding runs, and large patios than small ready-to-use bottles. At around $20, it also offers a relatively low-cost way to treat broad exterior areas. Results can vary with stain age, surface condition, and pressure washer settings. Deep growth or heavy buildup may need a second application and light scrubbing.
Pros
- Works across vinyl, aluminum, wood, brick, and stucco surfaces.
- Peroxide-based formula lifts stains from mold, mildew, algae, and moss.
- Up to 6,400 square feet of coverage from one gallon.
Cons
- It is a concentrate, so buyers must mix it correctly before use.
- A pressure washer is needed for the intended application, adding equipment cost if you do not own one.
4. Krud Kutter Multi-Purpose Pressure Washer Cleaner
Best for: Large outdoor surface cleanups
This one-gallon concentrate targets dirt, oil, grease, bird droppings, tree sap, and other outdoor grime. It works with a pressure washer or through manual application, making it useful for siding, concrete, decks, brick, stone, gutters, stucco, roofing shingles, patio furniture, RVs, boats, and equipment. At around $16, it offers a low-cost option for broad cleaning jobs.
The concentrate makes up to 20 gallons of ready-to-use solution and covers as much as 5,800 square feet. That makes it practical for driveways, walkways, pool areas, and larger home exteriors. After application, the cleaner should sit for 3 to 5 minutes before rinsing. Its bleach-free, biodegradable formula may suit buyers who want a strong exterior cleaner without chlorine. The formula claims to reduce or remove scrubbing for many jobs, but heavily stained surfaces may still need extra attention.
Pros
- One gallon produces up to 20 gallons of cleaning solution.
- Covers up to 5,800 square feet for large outdoor projects.
- Works across wood, vinyl, aluminum, concrete, brick, stone, and masonry.
Cons
- The 3-to-5-minute dwell time adds a waiting step before rinsing.
- Deep oil stains and older grime may still require brushing or repeated applications.
3. ZEP INC Deck/Fence Wash
Best for: Large decks and fence-cleaning projects
ZEP INC Deck/Fence Wash comes in a 128-ounce container and lists a total yield of 20 gallons. That makes it a practical option for larger outdoor cleaning jobs, such as washing several fence sections or a full deck. The size also gives buyers a clear way to compare coverage against smaller bottles. At around $13, the cost per mixed gallon is low on paper, though the final value depends on the surface size and how much solution each job uses.
The main standout is the stated yield. One 128-ounce container produces 20 gallons of wash, so you can prepare a larger batch without buying multiple small containers. That may reduce package waste and simplify supply planning for seasonal cleanup. Still, the listing provides no details about ingredients, required mixing steps, compatible surfaces, or contact time. Those gaps matter if your deck uses a specialty finish, painted boards, or older wood. Check the label before use, and plan to measure the product rather than treating the jug as a ready-to-use cleaner.
Pros
- Produces up to 20 gallons from one container.
- The 128-ounce size suits larger outdoor cleaning jobs.
- Around $13, it offers a low stated cost per mixed gallon.
Cons
- A 128-ounce container may be excessive for one small fence or deck.
- The listing does not specify ingredients, mixing directions, or compatible surfaces.
2. Simple Green Oxy Solve Deck & Fence Pressure Washer Cleaner
Best for: Pressure-washing large outdoor wood surfaces
Simple Green Oxy Solve Deck and Fence Pressure Washer Cleaner is a 128-fluid-ounce concentrate for decks, fences, pergolas, gazebos, carports, and similar outdoor structures. It uses peroxide to loosen grime, oils, grease, tree sap, and stains without relying on harsher cleaning chemicals. The liquid is colorless to pale straw and unscented, which suits buyers who dislike strong fragrance during outdoor cleanup.
The main draw is coverage. One container can clean up to 6,400 square feet when mixed and used as directed, making it practical for a large deck or several smaller structures. Results will depend on buildup, surface condition, and dilution, so heavily stained boards may need extra work. At around $24, it costs more upfront than a small ready-to-use bottle, but the concentrate can make sense for recurring seasonal maintenance.
Pros
- Covers up to 6,400 square feet per container.
- Targets grime, grease, oils, tree sap, and stains.
- Unscented formula avoids a strong cleaning odor.
Cons
- Requires a pressure washer and proper mixing, so it is not ready to use.
- Actual coverage can drop when surfaces have heavy buildup or deep stains.
1. Simple Green Oxy Solve Total Outdoor Cleaner Concentrate
Best for: weekend outdoor surface cleaning
Simple Green Oxy Solve Total Outdoor Cleaner is a concentrated, peroxide-based formula for pressure washers or manual application. It is made for exterior surfaces such as wood decks, vinyl siding, concrete driveways, brick, composite materials, patios, fences, and outdoor furniture. The EPA Safer Choice certification gives households a recognized ingredient-screening standard, which may appeal to families with children or pets around the yard.
One bottle covers up to 6,400 square feet, a useful amount for spring cleanup, property staging, or regular storefront maintenance. It can help tackle outdoor grime before a barbecue, open house, or contractor handoff. Around $24, the concentrate costs less upfront than many professional cleaning visits, although your actual savings depend on water access, equipment, and surface condition. It still requires mixing and storage before use.
Pros
- Works with pressure washers or manual cleaning methods.
- Covers up to 6,400 square feet per bottle.
- Suitable for wood, vinyl, concrete, brick, and composite surfaces.
Cons
- It is not ready to use, so buyers must follow dilution directions and mix it before cleaning.
- Heavy buildup or set-in stains may require spot testing, repeat applications, or extra scrubbing.
Buying Guide
The key factor is pressure-washer compatibility, because the wrong formula can damage seals, pumps, or deck boards. Choose a cleaner labeled for your machine’s detergent tank, downstream injector, or siphon hose.
- Surface compatibility: Select a product specifically labeled for wood, composite, or both. Use a wood-safe formula on cedar, pine, and other soft boards.
- Dilution ratio: Look for clear mixing directions, such as 4 ounces per gallon or a 1:10 concentrate ratio. Avoid products with vague instructions.
- Coverage: Compare the stated coverage with your deck size. A 32-ounce bottle covering 500 square feet may suit a small platform, while a 1-gallon jug often fits larger decks.
- Cleaning strength: For light dirt, a mild detergent may work. For algae, mildew, or gray weathering, choose a formula that specifically names that problem and provides a required dwell time, often 5 to 15 minutes.
- Rinsing and safety: Choose a cleaner that rinses away with water and lists protective gloves and eye protection. Keep children and pets away until the surface dries, usually for 2 to 4 hours.
If you cannot have everything, prioritize surface compatibility, since protecting the deck and washer matters more than maximum cleaning strength.
Frequently Asked Questions
How do you choose a deck cleaner for a pressure washer?
Choose a deck cleaner labeled for pressure-washer use and matched to your deck’s material, such as wood, composite, or PVC. Check the dilution directions, avoid products meant only for pump sprayers, and select a formula that addresses your main problem, such as algae, mildew, or dirt. A concentrate commonly mixes with water at a stated ratio, so measure it instead of guessing.
What is the safest pressure washer detergent for a wooden deck?
The safest choice is a wood-safe detergent with a clear pressure-washer dilution rate and no harsh ingredients that can strip the finish. Look for labels that identify cedar, pine, or treated lumber, then follow the stated dwell time, often 5 to 10 minutes. Keep the surface wet while the cleaner works.
Can I use any deck cleaner in a pressure washer?
No, use only a cleaner approved for pressure washers, because thick, solvent-based, or bleach-heavy formulas can damage equipment or leave residue. Read the bottle for injector or downstream-use instructions, and dilute exactly as directed. Some products require a separate pump sprayer, not the washer’s detergent tank.
Are pressure washer deck cleaners safe for plants and pets?
They can be safe for plants and pets when the label permits it and you prevent contact during application. Cover nearby plants, move bowls and toys, and rinse landscaping with clean water before and after washing. Keep people and animals away until the deck is rinsed and fully dry, often for several hours.
Conclusion
Simple Green Oxy Solve Total Outdoor Cleaner Concentrate is the top recommendation for homeowners who want one concentrated cleaner for routine deck washing and occasional outdoor cleanup without paying for a large specialty bottle. If convenience matters more than dilution flexibility, pick a ready-to-use cleaner instead, since it reduces measuring and setup before you connect the pressure washer. Before buying, double-check the container size, whether its formula is compatible with your washer’s detergent inlet or downstream injector, how many applications the stated quantity may cover, the cleaner’s dilution directions for your deck material, and the current price, since concentrates can look cheaper until you compare usable volume.