Instruction Manual
PURIFICATION SYSTEMS
 FLOW MASTER Programing Example
1. Below is an example of how to program the Flowmaster for the Tall Boy with KDF85. We will 
 program a capacity of 15,000 gallons for this example.
2. Press the “Filter” button. Press the “Setting” button. Press the ”Filter” button until the lower right hand 
 side of the display flashes “Gallon x 10”. Press the “Setting” button three times, until the second digit
 from the left flashes. Press the “Filter” button until it reads “5”. Press the “Setting” button so the far 
 left digit flashes. Press the “Filter” button until it reads “1”. The four digits should now read “1500”. 
 The “Gallon x 10” readout also be visible in the lower right hand corner. You have now successfully 
 programmed your Flowmaster for 15,000 gallons. Once it reaches that capacity, it will beep, alerting 
 you to replace the filters and reset the Flowmaster.
Hydro-Logic Purification Systems
 370 Encinal Street, Suite 150
 Santa Cruz, CA 95060
 ph: 888.426.5644
 fax: 831.336.9840
www.hydrologicsystems.com
Setting 
Button
 WARNING: 
1. This product is pressure sensitive. Changes in water pressure can cause damage. 
 Install the Flowmaster on product (purified water) line only! 
2. Make sure the flow of water is going in the direction of the arrows on the Flowmaster.
3. DO NOT remove battery while LCD screen is active.
4. Begin by running a low flow of water through the Flowmaster until the entire
 unit fills with water. Do not start with a high flow rate.
5. The 3/8” Flowmaster is designed to operate between 0.2 - 2.0 Gallons Per Minute 


