We have helped thousands of people repair Coulter Counters with just a phone call. The next time you have a problem, question or concern, give us a try. 573-642-2593 Within 10 to 20 minutes you will know where the problem is and how to fix it. If you need a part we can process your order immediately and you will have the new part tomorrow. We will be available to assist you to install the new part and test the unit if needed.