In my 24 years I have worked with four IS pumice machines. They are durable as claimed. I recommend them as best in class. I would caution the buyer to not rely on their rinsing. The high pressure rinse system uses a noisy pump with seals that can blow out and soak the entire machine with oil. Don't buy that option. The remaining rinse systems are minimally effective. I recommend you install a triple sump, rinse and dry system after, maybe something from ASI or Chemcut or equivalent. ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################