Everything you need to know about Backflow prevention in Wellington.

When it comes to protecting Wellington’s water supply, backflow prevention isn’t just a choice—it’s a necessity. Backflow can lead to contaminated water entering the town’s main supply, posing serious health and safety risks. That’s why LB White is here to provide professional installation, testing, and maintenance of backflow prevention systems across Lower Hutt and Wellington.

We Make It Easy!

At LB White,we know keeping track of annual backflow certifications can be a hassle. That’swhy we’ve created an easy annual reminder system to help you stay ontrack with your legal requirements. Once you’re signed up, we’ll notify youahead of your certification deadline, so you never have to worry aboutforgetting or falling out of compliance. With us, protecting your water supplyis simple and stress-free.

What Is Backflow, and Why Is It a Risk?

Backflow occurs when water flows in the opposite direction, carrying contaminants likechemicals, bacteria, or debris into the clean water supply. This can happen due to:

• Back-Siphonage: When water pressure drops below atmospheric pressure, often caused by events like firefighting or water main breaks.
• Back pressure: When the pressure in a system (e.g., from pumps or elevation changes) exceeds the supply pressure.

Without proper protection, backflow can harm not only your household but the entire city’s water supply.

Do You Need a Backflow Prevention Device?

In New Zealand, installing a backflow prevention device is compulsory for systems at risk of causing contamination. These include:

• Irrigation systems
• Commercial kitchens or industrial sites
• Swimming pools and spas
• Properties with cross-connections between potable and non-potable water

If you're unsure, LB White can assess your property and recommend the right device tokeep your system compliant and safe.

What Happens If You Don’t Have a Backflow Preventer?

Without a backflow prevention system:

• Contaminated water from your property could flow back into the city supply, affecting not just your home but your neighbours and the wider community.
• Events like a sudden drop in water pressure or misuse of hoses can introduce harmful chemicals, fertilisers, or sewage into the water.
• You may face regulatory non-compliance, resulting in fines or service disconnections.

How Often Should a Backflow Device Be Checked?

After installation, backflow prevention devices must be tested by a certified technician every 12 months. Regular testing ensures:

• Your device works as intended.
• You remain compliant with New Zealand regulations.
• Your household and the city water supply are safeguarded.

Sign up forLB White’s annual reminder service, and we’ll notify you when your backflow test is due—making compliance effortless.

Backflow Prevention Devices: Which One Do You Need?

The type of device required depends on the level of hazard your system poses:

• Air Gap: A physical separation, ideal for the highest level of protection.
• Reduced Pressure Zone Assembly (RPZ): Best for high-hazard applications, offering multiple layers of protection.
• Double Check Valve Assembly (DCV): Suitable for medium hazard risks.
• Pressure Vacuum Breaker (PVB): Designed to prevent back-siphonage.
• Atmospheric Vacuum Breaker (AVB): Cost-effective protection for low-risk systems.

Our Comprehensive Backflow Services

At LB White, we offer a full range of backflow services, including:

• Backflow Device Testing (IQP): Ensuring your device meets all safety and performance standards.
• Installation and Supply: Supplying and installing the right backflow preventers for your property.
• Servicing and Repairs: Keeping your system in top condition with regular maintenance.
• Risk Surveys: Assessing your property’s backflow risks and recommending solutions.

We work with top brands like Zurn Wilkins and Watts, ensuring you receive the best products and service.

Why Choose LB White for Backflow Prevention?

• Certified Technicians: Our experts are qualified to handle all backflow-related needs, from testing to repairs.
• Community Commitment: We’re dedicated to safeguarding Wellington’s water supply and ensuring your compliance.
• Convenient Service: Sign up for our annual testing reminders so you’ll never miss a test.
• Proven Reliability: Trusted by homes and businesses across Lower Hutt and Wellington.

Protect Your Water Supply Today 💧

Backflow prevention is vital for protecting the health of your family, your customers, and the wider community. With LB White, you can rest assured knowingyour water system is in safe hands.

Call us today on 04 587 1023 to book your backflow inspection, testing, or installation.

Email us at office@lbwhite.co.nz or visit us at 42 Victoria Street, Alicetown, Lower Hutt.