Brochure

Spray Hose in Sink
This type of cross-connection
is commonly found in the food
industry and in janitor’s sinks.
A hose has been connected to
the faucet on the sink. When
the faucet is left running, a loss
in pressure of the supply main
can siphon this used water
back into the potable
water system.
Submerged Inlets
In many industrial installations
that use chemically treated
baths, the make-up water line
runs directly into the tank. If
there is backsiphonage, the
toxic chemicals can be sucked
back into the potable
water system.
Hose Bibs
At first glance, a hose bib
seems innocuous, but it is the
things people do with the hose
that creates problems. In this
example, a man is trying to
blow a stoppage out in a sewer
line, but with a sudden drop in
line pressure, this contaminated
water can be backsiphoned
into the potable water system.
Typical
Cross-Connections
Potable
Water Line
Make-Up
Water Line
HNO
3
Solution
4