13649 N. Meyer Road, Rathdrum ID 83858
208-687-6593 (ph) 208-687-6597 (fax)
Office Hours:  6:00 a.m. - 4:30 p.m. Mon.- Thurs. 
Phones:  6:00 a.m. - 4:20 p.m.
In the event of an after hours emergency, please call our answering service at 208-769-3565.

CLOSED: FRIDAYS, SATURDAYS & SUNDAYS

Backflow Prevention

All Lawn Irrigation Systems Require Backflow Prevention!

All backflow prevention assemblies must be tested annually at spring start up for proper operation and protection.

Why?

Lawn irrigation systems make watering lawns and gardens easier, save you time, and can be designed to be water efficient. However, water contaminated by weed killers, fertilizers, and animal waste can backflow into your drinking water. To protect your drinking water from potential contamination, it is important to have an approved backflow protection assembly on your irrigation system. Lawn irrigation systems do require special equipment to prevent contaminated water from siphoning back into your home plumbing and public water systems.

  • A Backflow Assembly
    • Double Check Valve
    • Pressure Vacuum Breaker
    • Atmospheric Vacuum Breaker

A lawn irrigation system not protected by an approved backflow prevention assembly endangers the health of a household, neighborhood, and community!

All lawn irrigation systems - new or existing - must be equipped with an Idaho State approved backflow prevention assembly. Only an Idaho state and plumbing code approved backflow prevention assembly properly installed will meet the state plumbing code requirements and provide proper protection for the health of your family and neighbors.

How does backflow happen?

Backflow is water flow in reverse direction from the normal direction of flow in a piping system. This occurs due to different pressures existing between two different points within a piping system; water of a higher pressure flowing to water of lower pressure.

Backflow may occur due to either backsiphonage or backpressure.

Backsiphonage - is caused by negative pressure in the piping system.

  • A water line repair or break that is lower than a water service point.
  • A lower water main pressure due to a high water usage rate such as in fire fighting or water main flushing.
  • Reduced water supply pressure on the suction side of a water booster pump.

Backpressure - occurs when the water supply piping is connected to a piping system or plumbing fixture which exceeds the operating pressure of the water supply piping.

  • Booster pumps
  • Water supply line connections to a boiler or other heating systems where thermal expansion is possible
  • Connecting to a water system that operates at a higher pressure

The following list is for informational purposes only.

Backflow Testing Services:

1st Choice Prop Maintenance
208-664-4308  Lakeside Landscape
208-762-0735
Accurate Backflow Testing
208-755-2887 Les' Services
208-818-4869
Advanced Sprinklers
208-687-1955

Agrownomix LLC

208-660-2002
North Idaho Sprinklers
208-773-2796
All Scapes/Night Rain Sprnk
208-772-6300 Northstar Landscape/Irrigation
208-772-5550
Auto Rain/CDA Sprinkler
866-338-4112
Pete Maland
208-662-4404
Backflow Preventions
208-704-1770
Premier Landscaping NW
208-659-5560


Prestige Landscape Maint.
208-699-9231
Building Ground Landscape
208-699-3307
R&J Landscaping
208-762-9367
CE Oakland Plumbing/Heating
208-667-4006
Rocky's Landscape/Sprinklers
208-640-0284
CAP Smart Water Irrigation
208-620-1935


CBC Enterprises
208-661-5047
Sprinklers Northwest
208-818-8838
D&M Management
208-262-2222
Taylor Made Landscaping
208-818-9945
DC Sprinkler Service
208-818-5022
The Sprinkler Doctor
208-755-2162
Darnall Sprinklers
208-777-7688
Three Trees Landscaping
208-457-9902
Diamond Cut Lawn Care
208-889-8525
Water Wizard Sprinklers
208-627-2885
Done Rite
208-704-8104


Fred's Plumbing
208-772-2846


Hard to Scape
208-755-4830


JC Sprinklers
208-665-7150


Kyle Marine
208-255-9534












   

The following firms also offer fire protection systems testing:

Advanced Fire Protection 509-489-5040
Cascade Fire Protection 509-466-6096
Fire Control Sprinkler Systems 509-489-1444
Oxarc Fire Equipment 509-533-1017
Patriot Fire Protection 509-926-3428
Simplex-Grinnell 509-534-6055
Western States Fire Protection 509-922-8890

Backflow Prevention Assembly Forms

Download an EDITABLE MS Word form or PDF of the Backflow Prevention Assembly Form.

* Requires MS Word 2007 or higher. When you download the .docx file, you will find that the document is "locked" EXCEPT for the fields that need to be filled in or checked. Once you have completed the form, you can email it as an attachment to the recipient, OR print as usual and distribute as needed.