Wet & Forget. Frequently Asked Questions.

How long will Wet & Forget take to work?

It depends on the intensity of the contamination. If it is really light you will see results within days. Otherwise, it may take 2-3 months to see improvement. Your concrete may turn reddish brown when Wet & Forget is applied. This is normal and shows you have a good reaction. The discoloration will dissipate over a short period of time and is not permanent. The good news is when you use Wet & Forget the following season the cleanup will occur within weeks. 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 & Forget on a cool, dry, windless day, when no rain is expected for 4-5 hours. Often the evening or early morning is the best time to apply; when evaporation is minimal. This way, the treated surface stays wet with Wet & Forget for an extended period of time.

How long can Wet & Forget be stored?

Wet & Forget has an unlimited shelf life. It's non-caustic 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.

Will Wet & Forget affect my pets?

Not under normal circumstances. However, after application, keep your pets off the surface until it is dry to ensure they don't ingest any of the Wet & Forget. 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 damage my plants?

Only if Wet & Forget is sprayed directly onto a plant. Protect plants from overspray by rinsing with water before and after application or covering them during application.

Will Wet & Forget remove the contamination off my decks?

Most definitely! It will clean any type of decking. If your deck is older and black with contamination, wait a month after applying Wet & Forget and then give the area a light brush with a scrub brush and warm water. You will need to reapply Wet & Forget after this scrub but the good news is you should only have to do this once and then the maintenance becomes easy.

Can Wet & Forget be used on any outside surface?

Absolutely, you can use Wet & Forget on any outside surface, including: Concrete Driveways and Walkways, Patio's, Pool Surrounds, Asphalt Driveways, Fiberglass, Brick, Painted Textured Surfaces, Tombstones, Natural Stone, Ceramic Pots, Wood Decks, Astro Turf, 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).

Can I use Wet & forget for commercial applications?

You sure can, Wet & Forget is used worldwide at some of the most recognized structures and theme parks. For instance, it is so safe and gentle, it is the only product used to clean the exterior of the Sydney Opera House.

Additional commercial applications include: Theme Parks, Airports, Local Governments, Cemeteries, Freeways, Gardens, Hospitals, Hotels, Landscapers, Marina's, Motels, Power Stations, Prisons, Retirement Communities, Schools, Stadiums, Shopping Malls, Sail Makers and Zoos.

Is Wet & Forget a new company?

It is new to the United States, but Wet & Forget is a tried and tested product that has been used residentially and commercially for over 30 years in New Zealand and Australia.

What is the dilution rate of Wet & Forget?

Dilute Wet & Forget concentrate 1 part Wet & Forget to 5 parts water.

Wet & Forget Concentrate Fill Garden Sprayer With Water To
2 1/2 cups (20 oz.) 1 gallon mark
5 cups (40 oz.) 2 gallon mark

What is the coverage area of Wet & Forget?

The coverage of Wet & Forget depends on the porosity of the surface. For example, porous surfaces will readily absorb the product and painted surfaces will use less product.

Wet & Forget Concentrate Makes Coverage Area
.50 gallons (64 oz.) 3 gallons 375–1,125 sq. ft.
.75 gallons (96 oz.) 4.5 gallons 550–1,700 sq. ft.
1.00 gallon (128 oz.) 6 gallons 750–2,250 sq. ft.
1.50 gallons (192 oz.) 9 gallons 1,100–3,400 sq. ft.

Can I paint or stain over Wet & Forget?

Once the surface has come clean, you can paint or stain right over Wet & Forget. Its great for extending the life of the surface as it not only removes moss, mold, mildew and algae, but also the surfactant action helps remove dirt and other residue. Spraying your house annually with Wet & Forget will extend the life of your paint.

How soon after application can we start painting?

Thoroughly saturate the surface with Wet & Forget on a cool dry day. Late in the day is best. Leave the growth to start decomposing for 2-3 weeks (the longer the better) then prior to painting or staining, gently pressure wash the surface. Growth, dirt and residue will come off faster and easier. The surface will also be sterile reducing possible contamination of the new paint with algae and fungi.

Can I use Wet & Forget on my pool surround?

Wet & forget is ideal to use around your pool. Any over spray will not affect the PH in your pool.

Should the dilution rate be changed for Wet & Forget?

No, Wet & Forget works best when the dilution rate is 1 part Wet & Forget to 5 parts water.

Should I sweep or wash the surface before applying Wet & Forget?

Ideally, remove any excess debris. It's not necessary to wash the surface prior to application. Wet & Forget must be applied to a dry surface.

Can I apply Wet & Forget with a hose end sprayer?

No. Most hose end sprayers do not have the correct dilution rate for Wet & Forget. We recommend a pump-up garden sprayer.

Can I apply Wet & Forget with a pressure washer?

We recommend applying Wet & Forget with a pump-up garden sprayer, or a low-pressure agricultural sprayer.

Can you use Wet & Forget to clean the grout in exterior tiles?

Yes! It will remove the moss, mold, mildew and algae stains.

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

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

Will Wet & Forget harm the glass in my windows?

No, Wet & Forget is a gentle product and 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.

I just applied Wet & Forget to a concrete surface and it turned an orangey 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 change indicates you have a good reaction between the organic growth and the Wet & Forget. The color will disappear over time.