I have used MistKing pumps in my tanks at home and at the zoo I work for for years now. They have always worked flawlessly. But, recently one of my pumps at home stopped working. I contacted Marty and he replied straight away with some troubleshooting tips. The problem was very simple and easily solved. My pump now works like brand new. I would highly recommend going with MistKing for all your misting needs. Excellent products and customer service. Frank Payne Zookeeper and personal hobbyist