| Device | Common location | Typical repair | |--------|----------------|----------------| | RPZ (Reduced Pressure Zone) | In-ground box, garage, or external enclosure | Replace 1st/2nd check valve, relief valve, or o-rings | | DCV (Double Check Valve) | Water meter pit or low-profile box | Replace rubber seals, springs, or complete check module | | PVB (Pressure Vacuum Breaker) | Above ground on irrigation lines | Replace poppet, seat, or bonnet assembly |
Ensuring your property has functional backflow prevention is a critical safety and legal requirement for residents and businesses in Leppington. Backflow occurs when contaminated water—containing chemicals, bacteria, or waste—reverses its flow and enters the clean drinking water supply.
| Device | Common location | Typical repair | |--------|----------------|----------------| | RPZ (Reduced Pressure Zone) | In-ground box, garage, or external enclosure | Replace 1st/2nd check valve, relief valve, or o-rings | | DCV (Double Check Valve) | Water meter pit or low-profile box | Replace rubber seals, springs, or complete check module | | PVB (Pressure Vacuum Breaker) | Above ground on irrigation lines | Replace poppet, seat, or bonnet assembly |
Ensuring your property has functional backflow prevention is a critical safety and legal requirement for residents and businesses in Leppington. Backflow occurs when contaminated water—containing chemicals, bacteria, or waste—reverses its flow and enters the clean drinking water supply. backflow repair leppington
