I want to buy a powerwasher to learn with. I have used them to clean equipment and driveways but thats about it. I would like to take a season to learn how to correctly spray houses. That being said, I have been searching for a used PW. I found this today... 3200 PSI 4.0 GPM 9HP 1yr old Low hours They want 350 obo. Is this something I should jump at?