Backflow Prevention Assembly Information

Every customer who owns a backflow prevention assembly is required to have the assembly tested annually. Log into your Manatee County Utilities online account to find out when your backflow preventer was last tested and the result of your test.

Certified Backflow Preventer Testers

Testing must be completed by a contractor registered with the Cross Connection Control office. The contractor must possess a valid, up-to-date plumbing license, current insurance, backflow preventer testing certification, and currently calibrated test kit. For testing of fireline backflow preventers, the State's Fire Marshal certificate is required.

Prices vary between each company. We recommend getting multiple quotes.

If your assembly fails the annual test, you are responsible for repairing or replacing the assembly within 30 days. All replacements must be installed to Manatee County Utilities Standards and be the correct type of assembly based on the conditions on your property (see section below "Required Backflow Prevention Assemblies") . Furthermore, the assembly must meet the lead free requirement of Section 1417 of the Safe Drinking Water Act (42 U.S.C. 300g-6). If you are still out of compliance after the 30 days, all water services will be discontinued until the assembly is in compliance.

There are no time extensions for testing. You do not need to be present during the test. If your backflow preventer assembly is not tested in the allotted time, the County's contract tester will be scheduled to perform the inspection and a minimum charge of $40 per backflow preventer assembly will be charged to the property owner.

 

Who is required to have a backflow preventer?

Manatee County’s Cross Connection Control Program requires you to have a backflow preventer if any of the following conditions exist on your property*:
  • Swimming pool
  • In-ground irrigation system or underground sprinklers
  • Secondary source of water, such as reclaimed water or a well
  • Body of water, including river, bay, lake or pond on your property or bordering your property
  • Flood zone designation
  • Solar water heating system
  • Commercial, industrial, multistory or multifamily residential facility
  • Cross connection is found (any connection between your drinking water and another source of water that combines the two waters)
  • Fountain with a dedicated fill pipe
  • Fire sprinkler system

*Requirements apply to properties with houses built after 1987. If your home was built prior to 1987, you will be required to bring your property to current standards if a permit for property modification is issued (i.e. pool installation, plumbing modifications, installation of a well, etc.) or by January 1, 2026 whichever occurs first.

If you irrigate with potable water, you are required to have two backflow preventers, one at the meter and another one on the irrigation line at the point of connection. If you have two meters, potable and irrigation, you are also required to have two backflow preventers, one at each meter.

The Cross Connection Control Program is required by:

Regarding your backflow preventer

Letters
  • Annual Testing of Backflow Prevention Assembly(ies)
    You need to arrange for testing of your backflow preventer with a company from the County's Authorized Testers. The company will report your test results to us through the secured reporting website. Testing must be completed within 30 days from the date of the letter.
  • Final Notice for the Testing of your Backflow Prevention Assembly(ies)
    You have seven days to notify Cross Connection Control office whether your backflow preventer testing has been completed. If your backflow preventer is still out of compliance in seven days, the County's contract plumber will be scheduled to perform the inspection(s) and a fee of at least $40 per backflow preventer will be charged to the property owner.
  • Failed Backflow Prevention Assembly - BF#XXXXXXXX
    Your backflow preventer failed the annual inspection and needs to be repaired or replaced and re-certified within 30 days. Call an authorized plumber immediately and have the plumber contact the Cross Connection Control office.
  • Failed Backflow Prevention Assembly – Excessive Vegetation – BF #XXXXXXXX
    Your backflow preventer failed inspection due to excessive vegetation. Please trim back your plants and arrange for testing with a company from our authorized tester list. This must be completed within 30 days to avoid water service disruption.
Removing a backflow preventer
If conditions requiring backflow preventer are eliminated (i.e. in-ground irrigation system removed and no other conditions requiring backflow preventer exist at the property) you may submit a Petition to Remove a Backflow Prevention Assembly to the Cross Connection Control Office. Petitions can be mailed to 4520 66th St. W., Bradenton, FL 34210 or emailed to water.saver@mymanatee.org. You can also submit your Petition using a smart phone, tablet or computer by CLICKING HERE. Petitions will be reviewed within 30 days. Backflow preventer shall never be removed without approval.

Failed inspection due to excessive vegetation

The standards for backflow preventer require a 3' clearance to prevent damage of the assembly from overgrowth and accommodate room for the tester to safely inspect the backflow preventer. Please trim back your plants and arrange for testing with a company from our certified tester list. This must be completed within 30 days to avoid water service disruption.

Required Backflow Prevention Assemblies

Approved Backflow Prevention Assemblies

Manufacturers and models of approved backflow prevention assemblies for each type of assembly, double check (DC) or Reduced Pressure (RP), are listed in the document “List of Approved Backflow Prevention Assemblies” distributed by Foundation for Cross-Connection and Hydraulic Research, University of Southern California.

Potable Water Service 

An approved backflow prevention assembly must be installed on each potable water service connection to any premises containing specific types of facilities. Listed below are examples of facilities and the minimum protection required to be installed for each type of facility. This list represents the minimum requirements and should not be construed as a complete record of all facilities. The minimum approved backflow prevention assembly for unlisted facilities will be determined on a case-by-case basis by the Cross Connection Control Program.

 Type of Facility  Minimum Protection 
 Commercial  RP
 Industrial   RP
 Sewage Pumping Station (lift station)  RP
 Multistory  RP
 Multifamily Residential   determined by degree of hazard 
 Single-Family Residential
 determined by degree of hazard 

In addition to the specific facilities listed above, an approved backflow prevention assembly must be installed on each potable water service connection to any premises containing an actual or potential hazard. Listed below are examples of hazards and the minimum protection required to be installed for each type of hazard. The minimum approved backflow prevention assembly for unlisted hazards will be determined on a case-by-case basis by the Cross Connection Control Program. 

Type of Hazard at Premises  Minimum Protection 
 Any type of well  RP
 Flood hazard area (if only condition) DC
Auxiliary water system not connected to public water system 
RP
 Cooling system using chemical water conditioner   RP
 Fire Sprinkler System  RP
 Fountain with dedicated fill pipe   RP
 Hot water heating system using chemical water conditioner   RP
 If cross connection is found   RP
 Irrigation system  RP
 Property abuts or includes body of water (i.e., river, bay, lake or pond)   RP
 Reclaimed water (assembly at potable water meter)   RP
 Self-draining yard hydrant, fountain, hose, box or similar assembly   RP
 Solar water heating system  RP
 Steam boiler using chemical water conditioner   RP
 Swimming pool   RP
 Water storage tank, reservoir, pond or similar appurtenance   RP

Fire Protection Service 

An approved backflow prevention assembly must be installed on each fire protection service to any premises where the fire protection system contains any of the components listed below, unless the Cross Connection Control Program determines that no actual or potential hazard to the public water system exists. Fire systems are divided into six (6) general classes. Listed below are descriptions of the classes and the minimum protection to be provided for each class. 

Class 
 Description  Minimum Protection  
1 Closed automatic fire system with no pump connection (i.e., 20 heads or less)  None
2 Closed automatic fire system with pump connection  DC
3 Closed automatic fire system with pump connection and auxiliary water supply on or available to premises or located within 1,700 feet from pump connection  RP
4 Closed automatic fire system with closed pressure tank supply (jockey pump may be interconnected with domestic water supply and/or air compressor connection)  RP
5 Closed automatic sprinkler system interconnected with auxiliary water system  RP
6 Fire system used for combined purpose of supplying automatic sprinklers, hose lines, fire hydrants and standpipes and domestic water for industrial purposes:  RP
6(A) Self-draining fire hydrant on premises presenting health or system hazard (i.e., bulk storage yard, chemical plant, fuel storage plant, sewage treatment plant, stockyard or similar facility)  RP
6 (B) Self-draining fire hydrant on premises presenting pollution hazard (i.e., multi-family residential building, fabrication plant, office building or similar facility  DC

How to Become a Certified Backflow Preventer Tester

To register with Manatee County please complete and submit the Certified Backflow Prevention Assembly Service Provider Registration Checklist to the Cross Connection Control office. Contractors must possess a valid, up-to-date plumbing license, current insurance, backflow preventer testing certification, and current test kit calibration report. For testing of fireline backflow preventers, the State's Fire Marshal certificate is required. 
 
Registered contractors are required to record backflow test result through the Backflow Prevention Assembly Testing and Inventory application within 15 days of test. Any reports submitted through mail, e-mail or fax will not be accepted.

Additional Resources

Below are links to other sites that provide more information about cross connection control and backflow prevention:

Documents

Below are documents related to cross connection control and backflow prevention:

Journal Articles

Below are journal articles related to cross connections control and backflow prevention published by industry leading organizations:

CONTACT US +

  • Cross Connection Control, Utilities Department
  • (941) 792-8811 ext. 5267 or ext. 5283
  • Email Us

List of Certified Backflow Preventer Testers

CERTIFIED POTABLE BACKFLOW PREVENTION ASSEMBLY SERVICE PROVIDERS

Company Name Phone City Timely Filing Percentage Number of Tests Performed
A-Tru Plumbing LLC 941-706-6922 Bradenton 98 127
ABC Southwest Company Inc 941-474-4474 Englewood 100 17
About Time Plumbing & Drain Cleaning Inc 813-929-7778 Wesley Chapel N/A N/A
Accurate Backflow Testing, Inc.* 941-518-6030 Bradenton 99 40,062
Advanced Plumbing Commercial & Residential Inc 727-894-0136 St. Petersburg 100 9
Advanced Plumbing Solutions 941-284-4739 Nokomis 100 27
Air Clean of Florida 941-927-3828 Sarasota 100 2,173
All Aspects Plumbing LLC 941-237-8630 Venice 100 1
Alliance Fire and Safety* 941-485-5402 Venice 85 725
Alvarez Plumbing Co. 813-655-7520 Tampa 99 299
American Backflow & Fire Service 877-393-5544 Clermont 100 143
Anthony Gennaro Plumbing 813-920-4050 Land O'Lakes 100 24
Aqua Duck Plumbing, LLC 814-671-2418 North Port 94 68
Aqua Plumbing & Air Services, Inc. 941-366-7676 Sarasota 73 1,500
Arctic Air & Plumbing Services Inc 941-747-8800 Sarasota 87 900
Armstrong Bros. Plumbing 941-747-4645 Palmetto 99 921
Arrow Plumbing Services, Inc. 941-365-0778 Sarasota 87 78
B&I Contractors 239-344-2718 Ft Myers N/A N/A
Babes Plumbing, Inc.* 941-488-6074 Venice 99 506
Badger Bob's Plumbing 941-924-1920 Sarasota 99 558
Bill the Plumber, Inc. 941-924-8418 Sarasota 98 97
Blanton Plumbing, Inc. 941-371-4802 Sarasota 100 42
Blue Ribbon Plumbing Service, Inc. 941-923-9443 Sarasota 78 39
Bob Anderson Plumbing, Inc. 941-322-4510 Myakka City 100 23
Bootz Plumbing Inc 941-376-0109 Myakka City 100 1
Bravado Plumbing, LLC 941-896-4595 Bradenton 97 91
Bullseye Home Services 941-348-2000 Bradenton 97 83
Casey's Plumbing 941-739-6582 Bradenton 98 57,057
Circle Plumbing, Inc. 941-377-1444 Venice 100 19
C.J's Plumbing By Cucci, Inc. 941-722-2702 Ellenton 53 137
Coggins Plumbing 813-643-7173 Brandon 100 1
Complete Plumbing and Drain LLC 813-699-0684 Brandon N/A N/A
Countryside Plumbing 941-776-2404 Parrish 100 1,414
Crisp Plumbing, Inc. 941-927-9700 Sarasota 100 6
Custom Air & Plumbing 941-371-0833 Sarasota 95 250
Cy Blue Plumbing, Inc. (Commercial only) 941-924-1153 Sarasota 87 63
Daniel's Plumbing Service, Inc.* 941-926-7272 Sarasota 100 285
Danny Via Plumbing, Inc. 941-924-0640 Sarasota 99 260
Dolphin Fire Sprinklers, Inc.* 941-378-9493 Sarasota 96 207
DRH Plumbing 941-921-3232 Sarasota 100 1,905
Elite Custom Plumbing, Inc. 941-377-6962 Bradenton 100 445
Exact Plumbing Inc. 407-688-2317 Sanford 0 3
FCS Incorporated 727-576-1111 Clearwater 20 10
Fire & Life Safety America * 813-513-9331 Sanford 71 102
Flat Rate Plumbing 941-371-3111 Sarasota 100 55
Florida Fire and Backflow * 772-492-8141 Vero Beach 50 13
Gallo Plumbing Services, Inc. 941-921-4600 Sarasota 90 49
Grays Backflow Services* 407-592-2365 Orlando 91 189
Greater Bay Plumbing, Inc. 941-809-5849 Sarasota 100 35
Griggs Plumbing Co. (Commercial only) 941-748-2151 Bradenton 96 802
Harper Limbach LLC 813-682-6452 Tampa N/A N/A
Howie's Plumbing Inc 813-633-8923 Sun City Center N/A N/A
Howz It Flowin Agin 941-567-6220 Bradenton 100 33,127
James W Scott Jr Plumbing Inc (CT Fire) 239-694-2490 Ft Myers 90 79
JC Plumbing Enterprises Inc 352-275-8521 Bradenton 100 63
LaPensee Plumbing 941-778-5622 Holmes Beach 98 22,565
Lew & Sons Plumbing 941-753-6681 Oneco 100 499
Logan Plumbing, Inc. 941-812-6297 Bradenton 99 269
LT Plumbing LLC 941-729-1111 Palmetto 99 1,127
Master Plumbers & Septic 941-747-9700 Bradenton 93 65
McDonough Plumbing* 941-753-6436 Sarasota 88 2,649
Meares Plumbing, Inc. 727-863-8815 Spring Hill 100 658
Mike Douglas Plumbing Inc. 941-473-2344 Englewood 100 15
Monroe Plumbing Inc. 941-479-7923 Palmetto 100 400
North River Plumbing & Gas Works 813-743-8576 Parrish 100 46
Palmetto Plumbing, Inc. 941-722-2812 Palmetto 98 644
Patriot Plumbing 941-613-6785 Port Charlotte 100 1
Plumbing by George, Inc. 941-746-0593 Bradenton 97 103
Plumbing Connection Service Inc 727-804-9018 Indian Rocks Beach N/A N/A
Plumbing Express, Inc. 941-355-8422 Sarasota 100 150
Plumbing Today 941-921-5581 Sarasota 99 1,208
Pro-Team Plumbing 813-442-5599 Tampa 95 145
Quick Response Fire Protection * 407-469-2134 Groveland 52 918
Randy Mask Plumbing, Inc. 941-926-1624 Sarasota 78 157
Richards Plumbing Repair, Inc. 941-748-2275 Bradenton 98 3,245
RJ Kielty Plumbing 813-661-0707x2001 Brandon 70 481
Ron Horn Plumbing 941-924-3057 Sarasota 100 22
Ryan's Plumbing LLC 941-256-5580 Sarasota 90 104
Scott Wycherly 727-919-5197 New Port Richey 100 12
Sewell's Plumbing Services, Inc. 941-794-6497 Bradenton 95 242
Southern Utility Service Inc 863-287-3905 Winterhaven 100 12
Strode Plumbing LLC 941-953-3086 Sarasota 100 10
Tampa Bay Plumbing LLC 727-223-6400 Clearwater N/A 0
Terry's Plumbing Service 941-955-5362 Sarasota 81 283
The People's Plumber 941-423-7473 Sarasota N/A N/A
The Plumbing Connection 941-747-2727 Bradenton 100 39
The Waterworks Plumbing 941-794-6668 Bradenton 96 9,025
Tom Barriere Plumbing Inc 941-423-8223 Sarasota 100 75
Ty Clark Plumbing Inc 941-322-2419 Sarasota 60 15
Veterans Plumbing 941-812-1516 Nokomis 99 1,125
Wayne Automatic Fire Sprinklers Inc * 813-379-5587 Tampa 90 369
Wolf Plumbing & Construction 941-773-3934 Sarasota 99 595
Wyman Plumbing Inc. 941-755-1595 Bradenton 74 529

CERTIFIED FIRELINE BACKFLOW PREVENTION ASSEMBLY SERVICE PROVIDERS

Company Name Phone City Timely Filing Percentage Number of Tests Performed
A Total Solution Inc 727-942-1993 Tarpon Spring 71 7
Access Fire Protection 941-355-3473 Sarasota 90 850
Accurate Backflow Testing* 941-518-6030 Bradenton 99 40,062
Alliance Fire and Safety* 941-485-5402 Venice 85 725
Babes Plumbing* 941-488-6074 Venice 99 506
Century Fire Protection 770-506-2388 Duluth, GA 60 17
Cintas Fire Protection 813-621-6094 Tampa 95 195
Commercial Fire & Communications, Inc. 727-530-4521 Largo 80 24
Critical Systems Solutions LLC 727-209-5122 St. Petersburg 60 5
CT Fire Protection, Inc. 239-694-2490 Ft. Myers 90 79
Daniels Plumbing Service Inc.* 941-926-7272 Sarasota 100 285
Dolphin Fire Sprinklers, Inc.* 941-378-9493 Sarasota 96 207
Dynafire Inc 407-754-6643 Orlando 94 135
Fire & Life Safety America Inc * 813-513-9331 Sanford 71 102
Florida Fire and Backflow * 772-696-0538 Vero Beach 50 13
Florida Fire Services 813-662-3473 Valrico 66 8
Gold Coast Fire & Security 239-337-4142 Ft Myers 0 2
Gray's Backflow Service LLC* 407-592-2365 Orlando 91 189
Impact Fire Services 800-626-6129 Orlando N/A N/A
McDonough Plumbing* 941-753-6436 Sarasota 88 2,649
Piper Fire Protection Inc 727 581-9339 Clearwater 100 117
Pye Barker Fire & Safety LLC 727-842-1714 Tampa 60 97
Quick Response Fire Protection * 407-469-2134 Groveland 52 918
Red Hawk Fire & Security 813-925-1007 Oldsmar 0 0
Rodan Fire Sprinklers Inc 813-621-1357 Tampa N/A N/A
South Florida Fire Protection 941-228-4901 Sarasota 100 9
Sprinklermatic Fire Protection Systems Inc. 813-508-2776 Tampa 100 17
Superior Fire & Life Safety Inc 239-246-7979 Cape Coral 22 18
Thompkins Contracting Inc (Eagle Fire) 239-303-0648 LeHigh Acres N/A N/A
United Fire Protection 727-471-0860 St. Petersburg 0 1
Universal Fire Systems 813-662-9200 Tampa 0 1
VSC Fire & Security Inc 727-456-5200 Largo 0 25
Wayne Automatic Fire Sprinklers, Inc. * 813-630-0303 Tampa 90 369
Wiginton Fire Systems 813-623-2333 Tampa 88 192