Submerged hoses
A hose left in a pool, bucket or laundry sink can siphon dirty water back when pressure drops.
Cross-connections
Cross-Connection Control for Residential Plumbing
A garden hose sitting in a bucket of weed killer is a cross-connection. So is a boiler fill line without protection. We find these weak points and correct them.
- Home plumbing survey
- Practical corrections
- City notice support
No heat, no hot water or a gas smell? Call any time, day or night.
WATER SERVICE ยท Schematic
- 24/7 emergency service
- Tri-Cities, Burnaby, Surrey, Pitt Meadows, Maple Ridge
- Clear quote before work starts
- Tidy, respectful work
- Furnaces and boilers
- Air conditioning
- Heat pumps
- Water heaters
- Book online in about a minute
Overview
What cross-connection control means at home
A cross-connection is any actual or potential link between your drinking water and a source of contamination. Cross-connection control is the set of rules and devices that stop contaminated water from flowing back into the supply. Municipal water systems in BC are required to protect the public supply, and many Metro Vancouver cities run cross-connection control programs that apply to commercial buildings and, increasingly, to homes with irrigation or fire sprinklers.
Where backflow prevention is about the devices, cross-connection control is about finding every place a device is needed in the first place. Inside a home those spots are surprisingly common: laundry sink hoses, water softener and filter drains, hydronic heating fills, hot tub top-ups, submerged hose ends and older toilet fill valves. Able Pro surveys the plumbing, explains the risk of each connection and recommends the simplest correct fix.
Common household cross-connections
Most homeowners have at least one of these and do not know it.
Hydronic heating fill
Boiler water containing glycol or inhibitors needs a proper backflow device on the make-up line.
Irrigation systems
Buried sprinkler heads sit in soil and fertilizer, so they must be isolated from house water.
Drain connections
Equipment drain lines must discharge with an air gap, not piped directly into a drain.
Hot tubs and ponds
Fill points for spas and water features need an air gap or approved assembly.
Outdoor taps
Hose bibbs without a vacuum breaker are a frequent unprotected connection.
Included
What our cross-connection survey covers
- Water service entry and main shut-off area
- Boiler, hydronic and radiant floor fill lines
- Irrigation connection and any existing assembly
- Outdoor hose bibbs and vacuum breakers
- Laundry, utility sink and equipment drains for air gaps
- Water treatment equipment and their discharge lines
- Hot tub, pool or pond fill arrangements
How it works
From survey to safe plumbing
- 1
Walk the system
We trace the plumbing from the meter to every fixture and connection point.
- 2
Rate each hazard
Each cross-connection is classed by risk so you know what is urgent and what is minor.
- 3
Recommend the fix
Air gaps, vacuum breakers or testable assemblies, matched to the hazard and local rules.
- 4
Correct and document
We install what is needed and give you a list of devices that require ongoing testing.
Why Able Pro for cross-connection work
Plumbing and heating together
Boilers and hydronic systems are a top source of home cross-connections, and we service both.
Hazard-based advice
We match protection to the real risk, avoiding both shortcuts and overkill.
Clear written findings
You get a simple list of what was found and what was done.
Easy to schedule
Call (236) 222-2222 or book online at a time that suits you.
Related services
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Questions homeowners ask us
Still unsure? Call (236) 222-2222 and talk it through with us.
Is cross-connection the same as backflow?
They are related. A cross-connection is the link between clean water and a contaminant; backflow is the reverse flow that can carry the contaminant through that link. Cross-connection control finds the links, and backflow preventers close them.
What is an air gap?
An air gap is a physical open space between the end of a water outlet and the flood level of whatever it fills. Because water cannot jump across air, it is the most reliable protection, which is why codes require it for many drain and fill connections.
Does my city require a cross-connection inspection?
Requirements vary by municipality. Most residential obligations come into play when you have irrigation, fire sprinklers or similar systems, or during renovations. Check any notice from your city, and we can help you understand it.
Can a cross-connection really make someone sick?
Yes. Documented backflow incidents have introduced fertilizers, boiler chemicals and bacteria into drinking water. The risk in one home may be small, but the consequences can affect neighbours on the same main.
Will fixing cross-connections change my water pressure?
Simple fixes such as vacuum breakers and air gaps have no noticeable effect. Testable assemblies cause a small pressure drop, which we account for when choosing and sizing the device.
Book your visit
Find the weak spots in your plumbing
Book a cross-connection survey online or call (236) 222-2222 to protect your family's water.
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