Can anyone recommend a good quality brand of pressure washer that will last a few years.

Lots of info in this thread:

http://www.thaivisa.com/forum/topic/658591-advice-on-pressure-washers/

As per the other recent thread, Karcher and Zinsano are the two 'name' brands with the best support in Thailand - you won't go wrong with either of them.

The big question is, what size machine do you need, and what (if any) accessories might you want?

e.g. If needing to clean large areas of cement or sandwash, a 600L/hr Karcher with the T400 head can clean from black-to-new at about 300sqm/hr - with just a normal lance you'd be lucky to do 50-100sqm/hr.

Just remember, water blasters eat concrete, particularly if the concrete is old, badly mad or both. Do not use water blasters too often or two powerfully or goodbye to concrete or concrete surface finish. Vinegar & water plus a decent broom also works but wash down after with clean water. Vinegar eats concrete too if used carelessly. Do a google search "cleaning concrete floors" Baking soda works too. Same google search........ Sometimes low tech is best.