I think that the following links may be of assistance to any person in the power washing business. I find them personally very useful. The Lydia Frenzel Conference Series website offers free articles and has a weekly newsletter. Hope this will help.
www.advisorycouncil.org
www.waterjetting.org
www.lydiafrenzel.com
www.advisorycouncil.org
www.waterjetting.org
www.lydiafrenzel.com