Instruct: Classify Amazon reviews into positive or negative sentiment
Query: defective

I am a contractor and have purchased 6 or 8 of these pumps. They are very inexpensive and put out a good amount of water. A 1,5 h.p. failed after 15 minutes and my pump repairman said it was due to manufacture defect and could not be repaired. This glitch caused me quite a bit of time and money on that project. But I just bought another, a 2 h.p. because of the price.