FAQs | Wet & Forget Outdoor MAX With Xtreme Reach

No. Wet & Forget Outdoor MAX is the same original formula consumers have loved and used for years (Wet & Forget Outdoor), with a new name and updated label.

Outdoor MAX cleans moss, mold, mildew, and algae stains on outdoor surfaces.

Outdoor MAX delivers 2X the coverage and concentration^* and is made for large areas, tougher buildup, and higher/hard-to-cover surfaces. Outdoor Spaces is best for general outdoor cleaning at ground level.

Choose your format (Hose End or Concentrate), apply to a dry surface, thoroughly saturate the area, and let it air dry. No scrubbing, rinsing, or power washing.

Wet & Forget works over time with Mother Nature. Green algae stains typically clean up in a few weeks. Black stains from mold and moss can take a few months, depending on buildup and conditions.

No. Outdoor MAX is designed for no scrubbing, no rinsing, and no power washing.

Outdoor MAX’s hose-end sprayer reaches up to 30 feet, helping you treat higher areas from the ground.

Do not spray Wet & Forget directly onto plants. Protect landscaping from overspray by thoroughly rinsing with water before and after application or covering them during application. Turn your Xtreme Reach™ Hose End setting to water after your application and rinse down plants.

Standard dilution: 5:1
Stronger option for severe staining: 3:1

Apply when temperatures are 55°F or higher.

Keep people and pets off treated surfaces until fully dry - typically 4–5 hours.

Do not apply if rain is in the forecast.
Avoid extremely hot days or applying to hot surfaces, which can cause the product to evaporate too quickly and reduce results.

Rinse plants thoroughly with water as soon as possible.

Outdoor MAX can be used on many outdoor materials, including concrete, stone, brick, stucco, vinyl siding, fiber cement, painted/sealed wood, composite, and more. Always spot test first.

If it’s a routine, ground-level job, choose Outdoor Spaces. If it’s a big area, tough buildup, or you need more reach, choose Outdoor MAX.