In called Dave at Areo-Stream and told him my air compressor was not blowing air. He told me that the motor only lasts 4 to 5 years old. I had also paid for a Free refurbish on motor and would only have to pat shipping to then and $20.00 shipping back to me. He sent me the information and I printed it off in my computer. I mailed it out same day. Took a week for them tom receive the motor. After receiving the unit it was refurbished and sent out next day. I received it in 3 days. Looked like new and runs like new. Great job workers. I have been using this unit for over 4 years. Before I bought this unit I had to have septic tank pumped out 2 times a year. Now no problems at all works wonders' My place was built in 1972. Great product and great service. Thanks for Dave for being so helpful . You have a great team. Highly recommend this product.