Backflow Devices & Connection Devices
You may not be aware that under certain conditions, water from irrigation systems, hot tubs, and other fixtures can force its way back into the main water supply, contaminating the public water. This occurs if there is a “cross connection” between the public water system and any liquid that could contaminate the water system and the contaminated liquid “backflows” into the drinking water. The way to prevent a cross connection is to install an effective backflow device. Backflow devices are mandated by both State and local law (WAC 246-290-490 and Mercer Island Ordinance A-38) on all irrigation systems, boilers and fire systems. A permit and inspection is also required for all new installations. As an added precaution, State and local law requires yearly testing of all new and existing backflow prevention devices by a State-certified backflow tester.
Mercer Island Backflow Program
Mercer Island keeps a database of the water or irrigation systems that have backflow devices. We follow the State law by sending out an annual letter requesting an inspection of the backflow device. Yearly inspections by a State certified backflow tester are required by State law. A list of certified testers is included below for your reference.
State Certified Backflow Assembly Testers
This list was complied for your convenience, these businesses all have a City of Mercer Island Business Licenses.
|
Name of Business |
Phone Number |
|
$35 Backflow Testing |
206-369-6178 |
|
A-1 Fire Equipment |
253-852-1962 |
|
AAA Fire & Safety |
206-284-1721 |
|
AACRA Backflow Assembly Testing |
425-334-4507 |
|
ABC Water Specialty, Inc. |
425-355-9826 |
|
Advanced Irrigation |
206-467-6419 |
|
Affordable Backflow Testing |
206-369-6178 |
|
Always Testing |
425-672-4345 |
|
Anderson Backflow Testing |
425-844-4069 |
|
Aqua Containment Co. Inc. |
425-392-1523 |
|
Aqua Tech Services |
425-481-2919 |
|
Aquasense |
425-881-8600 |
|
Archer Construction, Inc. |
253-872-7277 |
|
Auburn Mechanical |
253-838-9780 |
|
Backflow Northwest |
425-277-2888 |
|
BATman Testing |
206-228-1618 |
|
Blake Plumbing |
425-531-0805 |
|
Blue Sky Landscape Services, Inc. |
253-845-2222 |
|
BTS (Backflow Testing & Service) |
425-334-3350 |
|
C & R Backflow |
206-369-6178 |
|
Cascade Alarm LLC |
253-630-3949 |
|
Certified Backflow Testing, Inc. |
206-601-5550 |
|
Custom Sprinkler Corporation |
425-413-9225 |
|
Dennis McLauglin’s Backflow Service |
206-364-9531 |
|
Fire Systems West |
253-833-1248 |
|
French Landscape Irrigation |
425-745-8898 |
|
French Touch Yard Services |
206-236-2264 |
|
Guardian Security |
206-622-6545 |
|
Green Effects |
253-891-9777 |
|
GS Backflow, LLC |
425-681-4048 |
|
Haagen’s H20 Designs |
425-483-2684 |
|
Highridge Irrigation Inc |
425-391-7779 |
|
Hubert Landscaping Service |
206-232-4361 |
|
Infinity Fire Protection |
425-793-8788 |
|
Lifestyle Landscapes Inc |
206-621-2626 |
|
MacDonald-Miller Facility Solutions |
206-763-6773 |
|
Malone’s Landscape & Nursery |
888-837-1938 |
|
McKinstry Company |
206-762-5900 |
|
Merit Mechanical (Commercial Only) |
425-883-9224 |
|
Miller Brothers Landscaping |
360-668-3829 |
|
Mis’ter Rain |
425-454-1190 |
|
MRP Services |
253-606-4648 |
|
Northern Waters Irrigation & Landscape |
425-672-9242 |
|
Northwest Mechanical |
206-782-7520 |
|
Olympic Landscape & Irrigation Co |
253-922-7075 |
|
Pacific Landscaping, Inc. |
206-522-1830 |
|
Pat’s Plumbing |
800-491-4081 |
|
Phoenix Landscape Maintenance |
425-687-6368 |
|
Queen City Plumbing |
425-486-1442 |
|
R.A. Brown Backflow Testing |
425-821-6801 |
|
Redwood Backflow |
425-495-1939 |
|
Roto-Rooter |
425-670-8442 |
|
R&R Irrigation |
425-483-0223 |
|
Smith Fire System Management, LLC |
253-926-1880 |
|
The Plumbing Joint |
425-453-9006 |
|
The Safety Team |
206-762-1450 |
|
Trugreen Landcare |
425-246-0066 |
|
Turfco Services |
206-634-2461 |
|
University Mechanical Contractors, Inc |
206-364-9910 |
|
Western States Fire Protection |
425-881-0100 |
|
Williams Mechanical, Inc |
425-303-0828 |
|
Whisker Waite’s Backflow Prevention |
360-794-5671 |
Please ask the tester to send the results to:
City of Mercer Island
Re: Backflow
9611 SE 36th ST
Mercer Island, WA. 9804
 | |
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