Pressure washing pavers with polymeric jointing sand requires meticulous attention to detail to ensure the sand remains intact and the pavers are cleaned effectively. This comprehensive guide will delve into the technical specifications, best practices, and essential considerations to help you navigate the process seamlessly.
Can I Pressure Wash Pavers with Polymeric Jointing Sand?
Yes, you can pressure wash pavers with polymeric jointing sand, but it is crucial to follow the proper techniques and guidelines to avoid damaging the sand. The joints should be 1/4″ wide and as deep as the pavers, and the sand should be properly compacted and cured before pressure washing.
Recommended PSI for Pressure Washing Pavers
It is recommended to use a pressure washer with a PSI between 1600 and 2000 for cleaning the surface of the pavers. However, if you need to remove existing polymeric sand from the joints, a higher PSI may be required. It’s important to note that the specific PSI range may vary depending on the manufacturer’s recommendations and the condition of the pavers.
| PSI Range | Application |
|---|---|
| 1600-2000 PSI | Cleaning the surface of pavers |
| Higher PSI | Removing existing polymeric sand from joints |
Preventing Blowout of Polymeric Sand
To avoid blowing out the polymeric sand, ensure that the joints are properly filled and compacted, and the sand has been allowed to cure. When pressure washing, use a wide fan tip and keep the nozzle at least 12 inches away from the pavers. Additionally, use a lower PSI and avoid using a turbo nozzle or surface cleaner, as they can dislodge the sand.
Proper Technique for Pressure Washing Pavers with Polymeric Sand
- Ensure the joints are properly filled and compacted, and the sand has been allowed to cure.
- Use a pressure washer with a PSI between 1600 and 2000.
- Use a wide fan tip and keep the nozzle at least 12 inches away from the pavers.
- Avoid using a turbo nozzle or surface cleaner, as they can dislodge the sand.
- Maintain a consistent, sweeping motion to clean the pavers without focusing on one area for too long.
Technical Specifications for Pressure Washing Pavers with Polymeric Sand
- PSI Range: 1600-2000 PSI for cleaning the surface, higher PSI for removing existing polymeric sand from joints.
- Nozzle Distance: At least 12 inches away from the pavers.
- Nozzle Type: Wide fan tip, avoid turbo nozzles and surface cleaners.
- Joint Width and Depth: 1/4″ wide and as deep as the pavers.
- Compaction and Curing: Ensure proper compaction and curing of the polymeric sand before pressure washing.
Factors to Consider
- Paver Material: The type of paver material (e.g., concrete, natural stone, brick) may require adjustments to the pressure washing technique and PSI.
- Paver Condition: The condition of the pavers, such as the presence of stains or efflorescence, may necessitate additional cleaning steps or a higher PSI.
- Polymeric Sand Quality: The quality and composition of the polymeric sand can impact its resistance to pressure washing.
- Weather Conditions: Pressure washing in hot, dry conditions may cause the polymeric sand to dry out and become more susceptible to blowout.
Conclusion
Pressure washing pavers with polymeric jointing sand requires a delicate balance of technique and technical specifications to ensure the sand remains intact and the pavers are cleaned effectively. By following the guidelines outlined in this comprehensive guide, you can achieve the desired results while protecting the integrity of your paver installation.
References:
- https://www.reddit.com/r/pressurewashing/comments/19a50ga/how_often_to_resand_pavers/
- https://ecocleannj.com/re-sand-paver-patio/
- https://diy.stackexchange.com/questions/190524/can-pavers-set-with-polymeric-jointing-sand-be-powerwashed
- https://www.youtube.com/watch?v=-sqZ9r1cDQg