Instruction manual
Hallett 15xs Instruction Manual 
Released on 20-Sept-12 – H800003P  Page 24  UV Pure Technologies Inc. © 2012 
Step 1: Turn off the unit by unplugging it. 
Step 2: Shut off the water supply and relieve the water pressure by opening a 
faucet. 
Step 3: Remove the filter from its housing and fill the housing with bleach.  
Step 4: Re-mount the housing (but not the filter) and plug in the Hallett to turn it 
on. 
Step 5: Once the Hallett is operating, turn on the water supply and run water to 
all faucets (hot and cold), toilets, the washing machine and other water-using 
appliances – the bleach must fill every inch of plumbing. The Treatment Alarm 
may arise due to low UVT after the introduction of bleach. If this occurs, use the 
manual override on the solenoid valve to keep valve open during procedure. 
Return override to auto position afterward. 
Step 6: When you detect the odor of chlorine at each spot, stop running the 
water and let the bleach remain in the lines for at least 12 hours – turn off the 
Hallett unit. 
Step 7: After the waiting period is over, plug in the unit. Once stable, flush every 
line for at least five minutes or until the odor of chlorine is gone. See local 
regulations for proper disposal of chlorine residual, especially in the case of 
discharge into a septic system. 
Step 8: Now that the disinfection procedure is complete you will need to return 
the filter to its housing. Shut off the water supply, relieve water pressure by 
opening a faucet, and return the filter to the housing. Allow a few days after a 
disinfection procedure before getting a sample since residual chlorine may affect 
the results. 
Have the water tested by a local recognized testing agency prior to any water 
consumption. UV Pure partners with water testing organizations in select 
locations throughout North America. Contact UV Pure for potential water testing 
partners: 1-888-407-9997. The testing should be performed on a regular basis as 
required by local regulations. 
Caution: Do not allow corrosive chemicals to remain in the unit for more 
than 12 hours – Do not operate unit during this time period as heating the 
water will increase corrosive nature of chemicals. 
4. MENU AND TROUBLESHOOTING 
The Hallett will run unattended until an alarm, or fault, arises. If an alarm does 
occur, the solenoid valve (optional) will close, preventing water from flowing. The 
green light will go out, the red light will illuminate, the audio alarm will beep, the 
remote will beep and an alarm message is displayed on the Hallett. The fault 
should be corrected to return the unit to normal operation and have the water 
flow again. When an alarm occurs, navigate to the “Alarm Condition Exists” 










