What is a cross-connection?
Jacksonville Duval County 904-346-1266
St Augustine St Johns County 904-824-7144
Orange Park Clay County 904-264-6444
Jacksonville Beaches Duval County 904-246-3969
Fernandina Nassau County 904-277-3040
Macclenny Baker County 904-259-5091
Palm Coast Flagler County 386-439-5290
Daytona Volusia County 386-253-4911
Serving all of Florida and Georgia at 904-346-1266
EMAIL LARRY@1STPROP.COM (feel free to email your bidding packages here)
QUESTION: What is a cross-connection?
ANSWER: A cross-connection is any temporary or permanent connection between a public water system or consumer’s potable (i.e., drinking) water system and any source or system containing nonpotable water or other substances. An example is the piping between a public water system or consumer’s potable water system and an auxiliary water system, cooling system, or irrigation system.
QUESTION: What is backflow?
ANSWER: Backflow is the undesirable reversal of flow of nonpotable water or other substances through a cross-connection and into the piping of a public water system or consumer’s potable water system. There are two types of backflow–backpressure backflow and backsiphonage.
QUESTION: What is backpressure backflow?
ANSWER: Backpressure backflow is backflow caused by a downstream pressure that is greater than the upstream or supply pressure in a public water system or consumer’s potable water system. Backpressure (i.e., downstream pressure that is greater than the potable water supply pressure) can result from an increase in downstream pressure, a reduction in the potable water supply pressure, or a combination of both. Increases in downstream pressure can be created by pumps, temperature increases in boilers, etc. Reductions in potable water supply pressure occur whenever the amount of water being used exceeds the amount of water being supplied, such as during water line flushing, fire fighting, or breaks in water mains.
QUESTION: What is backsiphonage?
ANSWER: Backsiphonage is backflow caused by a negative pressure (i.e., a vacuum or partial vacuum) in a public water system or consumer’s potable water system. The effect is similar to drinking water through a straw. Backsiphonage can occur when there is a stoppage of water supply due to nearby fire fighting, a break in a water main, etc.
QUESTION: Why do water suppliers need to control cross-connections and protect their public water systems against backflow?
ANSWER: Backflow into a public water system can pollute or contaminate the water in that system (i.e., backflow into a public water system can make the water in that system unusable or unsafe to drink), and each water supplier has a responsibility to provide water that is usable and safe to drink under all foreseeable circumstances. Furthermore, consumers generally have absolute faith that water delivered to them through a public water system is always safe to drink. For these reasons, each water supplier must take reasonable precautions to protect its public water system against backflow.
QUESTION: What should water suppliers do to control cross-connections and protect their public water systems against backflow?
ANSWER: Water suppliers usually do not have the authority or capability to repeatedly inspect every consumer’s premises for cross-connections and backflow protection. Alternatively, each water supplier should ensure that a proper backflow preventer is installed and maintained at the water service connection to each system or premises that poses a significant hazard to the public water system. Generally, this would include the water service connection to each dedicated fire protection system or irrigation piping system and the water service connection to each of the following types of premises: (1) premises with an auxiliary or reclaimed water system; (2) industrial, medical, laboratory, marine or other facilities where objectionable substances are handled in a way that could cause pollution or contamination of the public water system; (3) premises exempt from the State Plumbing Code and premises where an internal backflow preventer required under the State Plumbing Code is not properly installed or maintained; (4) classified or restricted facilities; and (5) tall buildings. Each water supplier should also ensure that a proper backflow preventer is installed and maintained at each water loading station owned or operated by the water supplier.
QUESTION: What is a backflow preventer?
ANSWER: A backflow preventer is a means or mechanism to prevent backflow. The basic means of preventing backflow is an air gap, which either eliminates a cross-connection or provides a barrier to backflow. The basic mechanism for preventing backflow is a mechanical backflow preventer, which provides a physical barrier to backflow. The principal types of mechanical backflow preventer are the reduced-pressure principle assembly, the pressure vacuum breaker assembly, and the double check valve assembly. A secondary type of mechanical backflow preventer is the residential dual check valve.
QUESTION: What is an air gap?
ANSWER: An air gap is a vertical, physical separation between the end of a water supply outlet and the flood-level rim of a receiving vessel. This separation must be at least twice the diameter of the water supply outlet and never less than one inch. An air gap is considered the maximum protection available against backpressure backflow or backsiphonage but is not always practical and can easily be bypassed.
QUESTION: What is a reduced-pressure principle assembly (RP)?
ANSWER: An RP is a mechanical backflow preventer that consists of two independently acting, spring-loaded check valves with a hydraulically operating, mechanically independent, spring-loaded pressure differential relief valve between the check valves and below the first check valve. It includes shutoff valves at each end of the assembly and is equipped with test cocks. An RP is effective against backpressure backflow and backsiphonage and may be used to isolate health or nonhealth hazards.
QUESTION: What is a pressure vacuum breaker assembly (PVB)?
ANSWER: A PVB is a mechanical backflow preventer that consists of an independently acting, spring-loaded check valve and an independently acting, spring-loaded air inlet valve on the discharge side of the check valve. It includes shutoff valves at each end of the assembly and is equipped with test cocks. A PVB may be used to isolate health or nonhealth hazards but is effective against backsiphonage only.
QUESTION: What is a double check valve assembly (DC)?
ANSWER: A DC is a mechanical backflow preventer that consists of two independently acting, spring-loaded check valves. It includes shutoff valves at each end of the assembly and is equipped with test cocks. A DC is effective against backpressure backflow and backsiphonage but should be used to isolate only nonhealth hazards.
QUESTION: What is a residential dual check valve (rdc)?
ANSWER: An rdc is similar to a DC in that it is a mechanical backflow preventer consisting of two independently acting, spring-loaded check valves. However, it usually does not include shutoff valves, may or may not be equipped with test cocks or ports, and is generally less reliable than a DC. An rdc is effective against backpressure backflow and backsiphonage but should be used to isolate only nonhealth hazards and is intended for use only in water service connections to single-family homes.
QUESTION: Why do backflow preventers have to be tested periodically?
ANSWER: Mechanical backflow preventers have internal seals, springs, and moving parts that are subject to fouling, wear, or fatigue. Also, mechanical backflow preventers and air gaps can be bypassed. Therefore, all backflow preventers have to be tested periodically to ensure that they are functioning properly. A visual check of air gaps is sufficient, but mechanical backflow preventers have to be tested with properly calibrated gauge equipment.
NOW HIRING
apply for a job online at www.asapapply.com
CLICK BELOW AND PLACE A WORK ORDER
IN OUR AUTOMATED WORK ORDER SYSTEM
http://www.asap-plumbing.com/Submit_a_New_Work_Order/submit_a_new_work_order.php
Serving the entire Jacksonville area including the following communities:
– Alachua County – Jackson County – Seminole County – Calhoun County – Manatee County – Franklin County – Orange County – DeSoto County – Alachua County – Lake County – Duval County – Palm Beach County – Polk County – Miami-Dade County – Highlands County – Duval County – Miami-Dade County – Polk County – Jackson County – Miami-Dade County – Orange County – Gilchrist County – Pinellas County – Pinellas County – Pinellas County – Pinellas County – Palm Beach County – Orange County – Marion County – Flagler County – Miami-Dade County – Calhoun County – Palm Beach County – Holmes County – Lee County – Hardee County – Palm Beach County – Manatee County – Manatee County – Hillsborough County – Suwannee County – Palm Beach County – Liberty County – Levy County – Bradford County – Hernando County Flagler County – Sumter County – Nassau County – Bay County – Jackson County – Brevard County – Lee County – Franklin County – Washington County – Seminole County – Bay County – Levy County – Sumter County – Escambia County – Gadsden County – Levy County – Washington County – Okaloosa County – Pinellas County – Lake County – Hendry County – Palm Beach County – Brevard County -Brevard County – Broward County – Miami-Dade County – Sumter County – Broward County – Miami-Dade County – Broward County – Jackson County – Putnam County – Okaloosa County – Dixie County – Citrus County – Pasco County – Broward County – Polk County – Broward County – Volusia County – Volusia County – Volusia County – Broward County – Walton County – Volusia County – Palm Beach County – Volusia County – Okaloosa County – Polk County – Pinellas County – Marion County – Polk County – Orange County Washington County – Volusia County – Orange County – Holmes County – Lake County – Collier County – Gilchrist / Levy County – Indian River County – Nassau County – Flagler County – Miami-Dade County – Broward County – Polk County – Lee County – Lee County – St. Lucie County – Okaloosa County – Columbia County – Walton County – Polk County – Lake County – Alachua County – Palm Beach County – Baker County – Miami-Dade County – Palm Beach County – Jackson County – Jackson County – Palm Beach County – Clay County – Gadsden County – Madison County – Jackson County – Gadsden County – Lake County – Santa Rosa County – Pinellas County – Palm Beach County – Polk County – Broward County – Bradford County – St. Johns County – Gadsden County – Palm Beach County – Alachua County – Miami-Dade County – Miami-Dade County – Alachua County – Palm Beach County – Polk County – Polk County – Broward County – Volusia County – Broward County – Manatee County – Miami-Dade County – Dixie County – Lake County – Palm Beach County – Brevard County – Miami-Dade County – Brevard County – Indian River County – Pinellas County – Pinellas County – Levy County – Putnam County – Citrus County – Miami-Dade County – Jackson County – Duval County – Duval County – Hamilton County – Santa Rosa County – Hamilton County – Palm Beach County – Palm Beach County – Palm Beach County – Martin County – Pinellas County – Miami-Dade County – Monroe County – Monroe County – Clay County – Osceola County – Alachua County Lake County – Polk County – Orange County – Union County – Columbia County – Palm Beach County – Polk County – Volusia County – Seminole County – Palm Beach County – Highlands County – Polk County – Palm Beach County – Polk County – Palm Beach County – Pinellas County – Broward County – Broward County – Broward County – Okaloosa County – Bradford County – Monroe County – Broward County – Madison County – Lake County – Broward County – Suwannee County – Sarasota County – Seminole County – Pasco County -Bay County – Baker County – Pinellas County – Madison County – Orange County – Brevard County – Jackson County – Palm Beach County – Palm Beach County – Monroe County – Collier County – Broward County – Jackson County – Okaloosa County – Lake County – Lafayette County – Marion County – Miami-Dade County – Brevard County – Brevard County – Brevard County – Bay County – Miami-Dade County – Miami-Dade County – Miami-Dade County -Miami-Dade County – Miami-Dade County – Alachua County – Gadsden County – Santa Rosa County – Lake County – Broward County – Jefferson County – Lake County – Glades County – Lake County – Polk County – Collier County – Duval County – Alachua County – Pasco County – Volusia County – Okaloosa County – Holmes County – Miami-Dade County – Broward County – Miami-Dade County – Miami-Dade County – Palm Beach County – Sarasota County – Pinellas County – Volusia County – Orange County – Broward County – Marion County – Martin County – Palm Beach County – Orange County – Okeechobee County – Pinellas County – Miami-Dade County – Volusia County – Clay County – Indian River County – Orange County – Volusia County – Levy County – Seminole County – Palm Beach County – Putnam County – Brevard County – Palm Beach County – Palm Beach County – Palm Beach County – Flagler County Pinellas County – Brevard County – Palm Beach County – Manatee County – Bay County – Bay County – Bay County – Broward County – Walton County – Broward County – Broward County – Clay County – Escambia County – Taylor County – Volusia County – Miami-Dade County – Pinellas County – Broward County – Hillsborough County – Polk County – Putnam County – Putnam County – Holmes County – Volusia County – Volusia County – Pasco County – Gulf County – St. Lucie County – Charlotte County – Gadsden County – Union County – Marion County – Pinellas County – Pinellas County – Palm Beach County – Brevard County – Palm Beach County – Pinellas County – Pasco County – Seminole County – Lee County – Sarasota County – Brevard County – Broward County – Indian River County – Highlands County – Pinellas County – Martin County – Okaloosa County – Jackson County – Wakulla County – Palm Beach County – Volusia County – Miami-Dade County – Palm Beach County – Pinellas County – Broward County – Bay County – St. Johns County – St. Johns Beach – Osceola County – Pasco County – St. Lucie County – Wakulla County – Pinellas County – Pinellas County – Bradford County – Martin County – Miami-Dade County – Broward County – Miami-Dade County – Miami-Dade County – Leon County – Broward County – Hillsborough County – Pinellas County – Lake County – Hillsborough County – Palm Beach County – Brevard County – Pinellas County – Gilchrist County – Lake County – Okaloosa County – Sarasota County – Washington County – Indian River County – Miami-Dade County – Alachua County – Hardee County – Washington County – Sumter County – Hernando County – Putnam County – Palm Beach County – Brevard County – Miami-Dade County – Palm Beach County – Broward County – Holmes County – Gulf County – Hamilton County – Sumter County – Levy County – Broward County – Orange County – Orange County – Polk County – Orange County – Seminole County – Union County – Levy County – Pasco CountyZolfo Springs- Hardee County
Florida City County List
Alachua
Alford
Altamonte Springs
Altha
Anna Maria
Apalachicola
Apopka
Arcadia
Archer
Astatula
Atlantic Beach
Atlantis
Auburndale
Aventura
Avon Park
Baldwin
Bal Harbour
Bartow
Bascom
Bay Harbor Islands
Bay Lake
Bell
Belleair
Belleair Beach
Belleiar Bluffs
Belleair Shore
Belle Glade
Belle Isle
Belleview
Beverly Beach
Biscayne Park
Blounstown
Boca Raton
Bonifay
Bonita Springs
Bowling Green
Boynton Beach
Bradenton
Bradenton Beach
Brandon
Branford
Briny Breezes
Bristol
Bronson
Brooker
Brooksville
Bunnell –
Bushnell
Callahan
Callaway
Campbellton
Cape Canaveral
Cape Coral
Carrabelle
Caryville
Casselberry
Cedar Grove
Cedar Key
Center Hill
Century
Chattahoochee
Chiefland
Chipley
Cinco Bayou
Clearwater
Clemont
Clewiston
Cloud Lake
Cocoa
Cocoa Beach
Coconut Creek
Coconut Grove
Coleman
Cooper City
Coral Gables
Coral Springs
Cottondale
Crescent City
Crestview
Cross City
Crystal River
Dade City
Dania Beach
Davenport
Davie
Daytona Beach
Daytona Beach Shores
DeBary
Deerfield Beach
DeFuniak Springs
DeLand
Delray Beach
Deltona
Destin
Dundee
Dunedin
Dunnellon
Eagle Lake
Eatonville
Ebro –
Edgewater
Edgewood
El Portal
Eustis
Everglades City
Fanning Springs
Fellenfere
Fernandina Beach
Flagler Beach
Florida City
Fort Lauderdale
Fort Meade
Fort Myers
Fort Myers Beach
Fort Pierce
Fort Walton Beach
Fort White
Freeport
Frostproof
Fruitland Park
Gainesville
Glen Ridge
Glen St. Mary
Golden Beach
Golf
Graceville
Grand Ridge
Greenacres
Green Cove Springs
Greensboro
Greenville
Greenwood
Gretna
Groveland
Gulf Breeze
Gulfport
Gulf Stream
Haines City
Hallandale Beach
Hampton
Hastings
Havana
Haverhill
Hawthorne
Hialeah
Hialeah Gardens
High Springs
Highland Beach
Highland Park
Hillcrest Heights
Hillsboro Beach
Holly Hill
Hollywood
Holmes Beach
Homestead
Horseshoe Beach
Howey-in-the-Hills
Hypoluxo
Indialantic
Indian Creek
Indian Harbour Beach
Indian River Shores
Indian Rocks Beach
Indian Shores
Inglis
Interlachen
Inverness
Islandia
Jacob City
Jacksonville
Jacksonville Beach
Jasper
Jay
Jennings
Juno Beach
Jupiter
Jupiter Inlet Colony
Jupiter Island
Kenneth City
Key Biscayne
Key Colony Beach
Key West
Keystone Heights
Kissimmee
La Crosse
Lady Lake –
Lake Alfred
Lake Buena Vista
Lake Butler
Lake City
Lake Clarke Shores
Lake Hamilton
Lake Helen
Lake Mary
Lake Park
Lake Placid
Lake Wales
Lake Worth
Lakeland
Lantana
Largo
Lauderdale Lakes
Lauderdale by the Sea
Lauderhill
Laurel Hill
Lawtey
Layton
Lazy Lake
Lee
Leesburg
Lighthouse Point
Live Oak
Longboat Key
Longwood
Lutz
Lynn Haven
Macclenny
Madeira Beach
Madison
Maitland
Malabar
Malone
Manalapan
Mangonia Park
Marathon
Marco Island
Margate
Marianna
Mary Esther
Mascotte
Mayo
McIntosh
Medley
Melbourne
Melbourne Beach
Melbourne Village
Mexico Beach
Miami
Miami Beach
Miami Lakes
Miami Shores Village
Miami Springs
Micanopy
Midway
Milton
Minneola
Miramar
Monticello
Montiverde
Moore Haven
Mount Dora
Mulberry
Naples
Neptune Beach
Newberry
New Port Richey
New Smyrna Beach
Niceville
Noma
North Bay Village
North Lauderdale
North Miami
North Miami Beach
North Palm Beach
North Port
North Redington Beach
Oak Hill
Oakland
Oakland Park
Ocala
Ocean Breeze Park
Ocean Ridge
Ocoee
Okeechobee
Oldsmar
Opa-Locka
Orange City
Orange Park
Orchid
Orlando
Ormond Beach
Otter Creek
Oviedo
Pahokee
Palatka
Palm Bay
Palm Beach
Palm Beach Gardens
Palm Beach Shores
Palm Coast
Palm Harbor –
Palm Shores
Palm Springs
Palmetto
Panama City
Panama City Beach
Parker
Parkland
Paxton
Pembroke Park
Pembroke Pines
Penney Farms
Pensacola
Perry
Pierson
Pinecrest
Pinellas Park
Plantation
Plant City
Polk City
Pomona Park
Pompano Beach
Ponce De Leon
Ponce Inlet
Port Orange
Port Richey
Port St. Joe
Port St. Lucie
Punta Gorda
Quincy
Raiford
Reddick
Redington Beach
Redington Shores
Riviera Beach
Rockledge
Royal Palm Beach
Safety Harbor
San Antonio
Sanford
Sanibel
Sarasota
Satellite Beach
Sea Ranch Lakes
Sebastian
Sebring
Seminole
Sewall’s Point
Shalimar
Sneads
Sopchoppy
South Bay
South Daytona
South Miami
South Palm Beach
South Pasadena
Southwest Ranches
Springfield
St. Augustine
St. Augustine Beach
St. Cloud
St. Leo
St. Lucie Village
St. Marks
St. Pete Beach
St. Petersburg
Starke
Stuart
Sunny Isles Beach
Sunrise
Surfside
Sweetwater
Tallahassee
Tamarac
Tampa
Tarpon Springs
Tavares
Temple Terrace
Tequesta
Titusville
Treasure Island
Trenton
Umatilla
Valparaiso
Venice
Vernon
Vero Beach
Virginia Gardens
Waldo
Wauchula
Wausau
Webster
Weeki Wachee
Welaka
Wellington
West Melbourne
West Miami
West Palm Beach
Weston
Westville
Wewahitchka
White Springs
Wildwood
Williston
Wilton Manors
Windemere
Winter Garden
Winter Haven
Winter Park
Winter Springs
Worthington Springs
Yankeetown
Zephyrhills
other websites we recommend you look at