Mid-West Backflow Test Kit Calibration/Repair Services here


We are an authorized repair and calibration service center for Mid-West Instrument.  This means we have been trained by Mid-West to calibrate, repair and do warranty work as needed.  Mid-West has manufactured gauges for Apollo, Wilkins, Febco, Flomatic and a few other companies.  

We have also started to calibrate the Arbiter Mako test kits.  This is still new for us but are pleased to offer this service.  Just list it on the form that it is a Mako!

We charge $105.00 + return shipping for the 845 and 835 series and $140.00 + return shipping for the 830 model.  Usually turnaround time is anywhere from 1-3 business days, depending on the time of year you send it in.  AS OF 6/5/24/24 WE ARE ABOUT 1-2 BUSINESS DAY TURNAROUND TIME!  IF YOU ARE CONCERNED ABOUT TURN AROUND TIME CALL BEFORE SENDING IT.  801-355-6736. If repair work needs to be done, we will contact you before we do anything to explain the issue and the cost before we proceed, with your approval.

No need to call us or get an authorization to send your gauge to us.  If you send it during the winter months please make sure you get as much water out of the gauge as you can and leave the valves open.  You may send it to us by UPS, FedEx or the US Post Office, whichever you prefer. 

How to get your Test Kit Calibrated/Repaired:

  • First, print and fill out the Form for Calibration
  • Second, package your kit and ship it to the address below
  • Third, if a repair is needed we will contact you, if not we will calibrate your kit and mail it back to you in 1-3 business days
  • Please include your phone number on the Calibration Form and we will contact you for payment once we receive your kit
  • We have the experience and knowledge to get it done right, the first time

Send it to:

Backflow Supply
151 W. Malvern Ave
Salt Lake City, UT 84115

Have a question? Give us a call or Contact us today and we would be happy to help. Check out these pages to purchase a Mid-West 845-5 or any of our Backflow Test Kits