Slidell Pressure Washing Company

For the majority of surfaces, an annual pressure washing should suffice. It does depend on the materials used to create/build the surface as well as the current condition of the surface, so you may need to increase the frequency of ppressure washings.

A do-it-yourself washer may set the pressure too high for the surface or hold the nozzle too close to it. This can result in chipped painting, damaged screens, and ruined siding. And though most power washing equipment you can rent has the same PSI as commercial-grade tools, it holds a minimal amount of water—making this project take days, not hours.

GPM is the gallons per minute. This flushes the contaminants pushed off by the PSI.

Both are very important. Some people do, however, prefer more PSI or more GPM depending on their needs. A farmer may want more GPM to flush contaminants away from the fresh soil; a business owner may want more PSI to get the grime off the exterior surface of his or her storefront.