Wet & Forget Outdoor Frequently Asked Questions

How long will Wet & Forget Outdoor take to work?

It depends on the type of growth. Light growth may take a few days to a couple of weeks to see results. Otherwise, it may take 2-3 months to see improvement. In the very worst-case scenario, where contamination is extreme, it may take 6-12 months to work.

When is the best time to apply Wet & Forget?

Apply Wet and Forget on a cool and dry day with minimal wind. Make sure there is no rain in the forecast for 4-5 hours. Typically, the evening or early morning is the best time to apply because evaporation is minimal. This way, the treated surface stays wet with Wet & Forget for a longer period. Apply Wet & Forget Outdoor Concentrate and Wet & Forget Ready-To-Use when temperatures are above 32 degrees. Apply Wet & Forget Extreme Reach™ Hose End when temperatures are above 55 degrees.

Can Wet & Forget be used to treat any outside surface?

You can use Wet & Forget Outdoor on any outside surface, including: Driveways and Walkways, Patios, Pool Surrounds, Fiberglass, Bricks, Painted or Textured Surfaces, Tombstones and Grave Markers, Natural Stone, Ceramic Pots, Decks, AstroTurf, Tennis Courts, Canvas Awnings, Greenhouses, Boats, RV’s, Gutters, Siding (Vinyl, Aluminum and Wood and Stucco) and Roofs (Asphalt and Fiberglass, Steel, Clay, Shake and Tile).

What is the dilution rate of Wet & Forget Outdoor Concentrate?

Apply Wet & Forget Outdoor with a garden sprayer. Dilute 1 part Wet & Forget Outdoor to 5 parts water.

Will Wet & Forget affect my pets?

Keep pets off the surface applied to until it is dry to ensure they don’t ingest any of the Wet & Forget. Wet & Forget will take 4-5 hours to dry completely. If they accidentally walk in the treated area while wet, rinse your pet’s paws with fresh water as a precaution. Wet & Forget is safe for pets if it rains after the dry time.

Will Wet & Forget harm plants?

Protect landscaping from overspray by thoroughly rinsing with water before and after application or covering them during application. Do not spray Wet & Forget directly onto plants.

I applied Wet & Forget to a concrete surface & it turned an orange-brown color. Is this normal?

Yes, this is a normal and temporary color change that occurs on some concrete surfaces right after application. The color will disappear over time and indicates a good reaction between the organic growth and Wet & Forget.

What is the shelf life of Wet & Forget?

Wet & Forget has an unlimited shelf life. It is bleach-free and non-acidic. Wet & Forget can be stored in the original bottle as a concentrate or as a dilution in your garden sprayer. The product will not deteriorate after being diluted nor damage your garden sprayer. Always keep the cap tightly fastened and the product out of the reach of children. 

Can I paint or stain over Wet & Forget?

Once the surface has come completely clean, you can paint or stain right over Wet & Forget.

Can I use Wet & Forget near my pool?

Wet & Forget can be used around your pool. Any overspray will not affect the pH in your pool and it is still safe to swim.

Should I wash the surface before applying Wet & Forget?

Remove any excess debris, however it is not necessary to clean the surface before application. Make sure to apply Wet & Forget Outdoor to dry surfaces.

Can I apply Wet & Forget Outdoor Concentrate with a hose end sprayer or pressure washer?

We recommend applying Wet & Forget Outdoor Concentrate with a pump-up garden sprayer for best results. For large surfaces and high elevations, we recommend using Wet & Forget Xtreme Reach™ Hose End. NOTE: Most standard hose end sprayers do not have the correct dilution rate for Wet & Forget. If you use a pressure washer with Wet & Forget Outdoor Concentrate, only use pressure washers that can pull from a separate container with the pre-mixed solution of 5:1 otherwise, we do not recommend pressure washers as you will not get the proper dilution or results.

Can I store Wet & Forget in a place where the temperature drops below 32 degrees?

We do not recommend storing Wet & Forget areas that could freeze or have temperatures below 32 degrees.

Will Wet & Forget harm glass windows?

No, Wet & Forget will not etch the glass in windows. However, Wet & Forget may leave a residue on the glass. After the Wet & Forget has dried, you can wash the glass portion of the window with glass cleaner to remove any residue.

Can I use Wet & Forget Outdoor products Indoors?

Wet & Forget Outdoor products are specially formulated for outdoor use and requires exposure to the weather to work properly. For indoor use, we recommend using Wet & Forget Indoor Mold+Mildew Disinfectant Cleaner.