Aluminum Enclosures and Concrete Pads: Total Security and Confidence

If you’re looking for security and assurance in your backflow preventer and aluminum enclosure, you’re not just installing above ground, you’re putting it under a Safe-T-Cover enclosure and on a concrete pad. In many jurisdictions, a concrete pad is required and is also recommended for nearly all installations of our products. Let’s take a quick look at the importance of combining aluminum with concrete when it comes to backflow equipment.


Our aluminum enclosures are braced with California redwood and built to be rugged in all conditions. But even our industry-leading enclosures are only as good as what they’re installed on. Take a look at this story from KERO in Bakersfield, California and notice what’s missing, well, aside from the backflow preventer and enclosure.

Even in this instance, an enclosure would have no concrete pad to anchor to, leaving the backflow equipment just as susceptible to vandalism or theft. (And their recommendation of installing a cage? We know better.) Installing a standard or custom enclosure on a concrete pad with appropriate depth (see below) provides a rock solid base for protection from thieves and nature alike. Speaking of nature…


Life finds a way. Without installing an aluminum enclosure on a solid concrete pad, wildlife can find their way into just about any space.

An unsecured enclosure might as well be a vault. We’ve heard stories of rodents, snakes and other creatures worming their way into unanchored enclosures, creating an unpleasant surprise for anyone accessing the equipment inside, not to mention the risk of damage to equipment.

You wouldn’t use an upside down laundry basket as a dog kennel; an unanchored enclosure isn’t much better.


Gushing water damages the ground around it, and anywhere there is a need for backflow prevention, there is real risk for sinkhole development. For this reason alone, in-ground vaults for waterworks or backflow preventers represent increased danger to the surrounding environment. Simply bringing the equipment above ground isn’t enough. 

A concrete pad provides a firm footing for your waterworks and your enclosure alike, providing maximum stability and security against sinkhole compromise or other damage, regardless of what’s below the surface.

Standards of Installation

In many municipalities and a growing number of states, a concrete pad of four-inch thickness is the standard, and will work for installing a Safe-T-Cover enclosure. We recommend going beyond what’s required, though. Will you need to account for deep snow or potential areal flooding?

Four inches may be what’s necessary, but your property may dictate going further. Always check with your local codes and ordinances when looking to install concrete for a RPZ or other waterworks enclosure.

Safe-T-Cover encourages installing our enclosures on concrete: included with every order is the concrete drill bit you need to install mounting anchors on your pad, and the entire mounting and installation process is quicker and easier than you think. Concrete is a minimal cost for maximum protection. Combined with a Safe-T-Cover enclosure, you will enjoy superior confidence in your waterworks equipment.

Don't be content at 90%

You’ve already made the smart choice by moving your backflow preventer outside, and a smarter choice by opting to install above ground with a Safe-T-Cover enclosure. You might even have that enclosure set to match your building’s color palette or designed with custom graphics that turn an enclosure into something worth looking at. But if all of that isn’t set on and secured to a proper and compliant concrete pad, all that investment will be a sunk cost.

Don’t make all the right decisions only to make one wrong one: anchor your Safe-T-Cover enclosure to concrete and know that you’ve done everything you can to protect your water and your property alike.

Related Posts

From the Field: The Benefits of Genuine California Redwood Bracing in Safe-T-Cover Enclosures

Winterize Your Backflow In Eight Steps (or One)

Choosing a Pump Cover: Clamshell Fiberglass vs. Aluminum Pump Covers

LEEDing the Way: Enclosures and How LEED Can Benefit You

Built to Prevent Enclosure Color Fading: The Science of Safe-T-Cover

Low Price, High Cost: Fiberglass Enclosures Are Built to Fail

Everything But the Bow: Custom Wrapped Graphic Solutions for Enclosures

Lighting and Your Aluminum Enclosure

Beyond Aluminum Enclosures: Our Commitment to Corporate Responsibility

One Step Ahead: A Look at High-Hazard Cross-Connections and Compliance

IoT Takes Backflow Prevention To Another Level

Protection from Sound and Fury: Safe-T-Cover Enclosures and Noise Dampening

3 Reasons Why a Backflow Cover Must Have Heat

From the Field: Tips for Safe-T-Cover Enclosures and Protective PVC Coating

Why RPZ Valves Are Required and How to Install One

Aluminum Pump Enclosures vs. Pump Packages


From the Field – National Backflow Prevention Day

Standing out by blending in: Safe-T-Cover enclosures made to order

Forward thinking in Arlington, Texas: Leading the way with public health and backflow preventers

Introducing the MUNI-LOK from Safe-T-Cover

Air Cooler Enclosure Solves End-User Problem

Installing Fire Dept Connection & Backflow Prevention Valve for Safety

Follow This Custom Enclosure Design Checklist To Protect Your Equipment

Selecting the Right Heater for a Backflow Cover

The Drawbacks to Using a Backflow Valve Cage

Finding The Right Style Enclosure For A Small Pump Package

How To Keep Your Pump Cover Cool In Warm Weather

5 Ways Panel Design Equipment Covers Offer Superior Flexibility


Quintessential List of Backflow Preventer Enclosure FAILS

Project Engineer vs. Maintenance - A Valve & Pump Covers Tug-of-War

Chicago Backflow Incident of 1933

Three Reasons Why You Should Choose an N-Type Device

The Right Backflow Insulation Cover & Heater For You | Backflow Cover

Infographic: Backflow Preventer Design Done Right

How To Size A Custom Backflow Enclosure

How Do You Hide A Backflow Enclosure?

How Does a Backflow Preventer Work?

Why You Need An Irrigation Pump Cover

What Features Should Every Pump Cover Have?

How To Ensure Your Insulated Backflow Enclosure Stays Warm

This is How You Cut Backflow Preventer Installation Costs

This is How A Backflow Preventer Installation Should Be Done

Above-Ground-Backflow Assemblies Are a Big Winner in Las Vegas

A Backflow Preventer in a Utility Vault Can Be Deadly

How to Find the Perfect Enclosure for Backflow Prevention

How to Decide If You Should Repair or Replace Your Backflow Preventer

VIDEO: Safe-T-Cover Hopes To Change The Way You Think About Backflow

What You Need to Know About Backflow Prevention and Flood Risks

How to design & Buy a Pump Enclosure

Get the free, editable checklist.



Have a question about a backflow preventer enclosure?
Click the contact us button below and one of our experts will be able to help with your specific enclosure needs.