Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Pressure pump replacememnt fiasco

Although Solo sells a replacement pressure pump for the 425 and 475 backpack sprayers, this part is not replaceable even by someone with above average skills and experience. The repair shops refuse to work on these sprayers or want to charge more than a new sprayer costs. A good sprayer, but not repairable except for easily accessed o-rings and washers. Sorry Solo. I need something for the long haul.