Core TradesQuestion 89 of 700
A garden hose is left submerged in a utility sink filled with soapy water while the faucet is on. This creates a cross-connection hazard because:
a.The hose could burst
b.A drop in supply pressure could back-siphon contaminated water into the potable system
c.The water will get too hot
d.The sink could overflow
Explanation
A submerged hose forms a direct cross-connection; if supply pressure drops, back-siphonage can pull contaminated water into the potable piping. The remedy is an air gap or backflow prevention device. Bursting, temperature, and overflow are not the cross-connection contamination mechanism.
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