http://www.powerwashnetwork.com/showthread.php?threadid=2351
Russ Spence Commercial Pressure Wash Expert Feb 1, 2007 #1 http://www.powerwashnetwork.com/showthread.php?threadid=2351
Russ Spence Commercial Pressure Wash Expert Feb 1, 2007 #2 caustic http://www.powerwashnetwork.com/showthread.php?s=&threadid=1066
Ron Musgraves Exterior Restoration Specialist Staff member Feb 25, 2007 #3 The caustic thread years later my opinion differs alittle. Its the process and not any chemical.
