FAQ

Q: Will the roof algae/moss become slippery after applying Spray & Forget?
A: Yes, our product will immediately begin removing the root structure of the algae and/or moss stains which
results in the surface becoming slippery. For roof surfaces, always apply from the gutter edge to the rooftop and
rinse, if necessary, from the rooftop to the gutter edge with a low-pressure washer. We recommend hiring a
professional if you are not experienced with walking on roofs, heights or using a pressure washer.
Q: Can I use a pressure washer to apply and rinse Spray & Forget?
A: Yes, for most shingles, you can rinse with a pressure washer but make sure that you use 500 PSI or less to
prevent damaging the shingles and consult with us first if you are not sure if it is safe for your type of shingle. DO
NOT USE HIGH PRESSURE ON YOUR ROOF! You can NOT use the injector on your pressure washer to apply
Spray & Forget as it is meant for applying detergents only and will not get the right mix ratio.
Q: What is the rapid result method, mixture ratio, and application technique?
A: Although we recommend using our “no rinse” application method since it is far safer, easier and less labor
intensive, you can get rapid results using Spray & Forget. You would apply a 5 parts water to 1 part Spray &
Forget concentrate mixture to the surface to be treated. Make sure that you apply to a dry surface with at least 24
hours before any heavy rainfall (check your weather forecast). Wait at least 12 hours after applying Spray &
Forget and rinse with a pressure washer using low to medium pressure (~100-500 PSI).
Q: Can I use Spray & Forget on my tub or shower?
A: We do not market Spray & Forget for indoor use. Therefore, we do not have any data to confirm or deny how
Spray & Forget will work on indoor surfaces.
Q: Will Spray & Forget work in my crawl space?
A: We do not have any data on using Spray & Forget in crawl spaces. Spray & Forget was designed to eliminate
stains caused by biological growth but requires some pressure and/or brushing to actually remove the biological
growth where the surface is not accessible to rain fall.
Q: What if I apply Spray & Forget and it does not rain for several weeks.
A: It is all right if you do not get rain for several weeks. In contrast, it is NOT all right if you get rain within 24
hours after applying Spray & Forget.
Q: Does the temperature affect Spray & Forget?
A: No, temperature does not affect Spray & Forget. However, you should apply it when the temperature is above
freezing.
Q: What is the best mixture to use for the Spray & Forget method?
A: We recommend 5 parts water to 1 part Spray & Forget concentrate for all initial cleaning applications and 9
parts water to 1 part Spray & Forget concentrate for all preventive applications.
Q: Can I spray the surface down with water every few days to make it work quicker?
A: We do not recommend this! We have no data to support that this technique will expedite the removal process
and it may have a negative impact.
Q: Can I use Spray & Forget on Efis and Drivit?
A: Yes, Spray & Forget works very well on these surfaces. You will have to use the “no rinse” application as
using any pressure on these surfaces may cause damage. For stubborn stains on highly textured surfaces, you
may need to slightly brush the surface with a soft to medium bristled brush while the surface is still wet, after
application, and then rinse with a garden hose or use a pressure washer with low to medium pressure.
Q: Will the run off from Spray & Forget hurt my pets?
A: No. As a caution, you should put pets inside while applying Spray & Forget and wait until the initial