Do I Need a Permit for Backup Water Tank Installation? Ultimate Guide to Backup Water Tank Permits in SA

Table of Contents

1. Introduction

2. What Is a Backup Water Tank?

3. Do You Need a Permit?

   • Permits Under Municipal Water Bylaws

   • When a Permit Is Not Typically Required

4. Municipal Requirements in Tshwane, Ekurhuleni & Johannesburg

   • City of Tshwane Requirements

   • City of Ekurhuleni Requirements

   • City of Johannesburg Requirements

   • Key Differences Between the Cities

5. Bylaws: What They Require You to Do

   • Approval of Water Installations

   • Who Can Do the Work

   • Documentation & Certificates

6. Technical Standards: SANS & IOPSA

   • SANS Tank Standards

   • SANS 10252 & SANS 10400

   • IOPSA’s Role in Compliance

7. Step-by-Step Process: From Planning to Commissioning

8. Common Mistakes & Compliance Traps

9. Conclusion

10. FAQs

1. Introduction

As water supply reliability becomes an increasing concern in South African cities, many homeowners and businesses install backup water tanks to store potable water for outages, load shedding, or supply interruptions.

However, backup water tanks are not just a pipe and a plastic container — when they connect to municipal water reticulation or are part of a water installation, they can trigger regulatory and safety requirements under municipal bylaws and national technical standards. The key question is:

🧰 Do you need municipal approval (permit) to install a water tank?

The short answer: Often, yes — but it depends on how the tank is connected and how your municipality treats water installations.

2. What Is a Backup Water Tank?

A backup water tank is a storage vessel that holds water (often 2 500 L to 10 000 L or more) and is connected to your property’s water supply system so that, when municipal supply is interrupted, water is still available to your house or business.

Common reasons for installing one include:

• Load shedding preparation

• Frequent supply interruptions

• Pressure issues from the municipal system

• Rainwater harvesting and reuse

3. Do You Need a Permit?

This is where municipal law comes into play.

Permits Under Municipal Water Bylaws

Across South African cities, water services are regulated by municipal water or sanitation bylaws — often updated within the last few years. These bylaws typically require that installation work affecting water installations have written municipal approval if it is not trivial or purely internal.

For example, many bylaws state:

• Property owners must obtain municipal written approval for installation work on water systems except certain internal work.

• Applications must include drawings and sometimes certificates showing compliance with standards.

Backup water tanks are usually considered part of the “water installation” if they connect to municipal water piping or affect how water enters or exits the municipal distribution.

So: yes, in many cases a permit or written municipal approval is required before you install a backup tank that ties into your plumbing.

When a Permit Is Not Typically Required

Some municipalities provide exceptions for:

• Internal adjustments that don’t involve new installations tied to mains

• Repairs or replacement of existing fittings (not new installations)

But note: these exceptions are usually narrow and specific.

Important: Even if you think it’s “just a tank,” if the tank changes how municipal potable water flows into your property or can affect system pressures, the law likely considers it installation work triggering approval requirements.

4. Municipal Requirements in Tshwane, Ekurhuleni & Johannesburg

City of Tshwane (Pretoria)

The City of Tshwane’s water services bylaws follow the general pattern of requiring written municipal approval for installation work on water installations (including tanks) tied into the system.

Although the full Tshwane water services bylaw is not publicly searchable here, most South African municipal bylaws are based on “water installation approval” rules similar to those in other metros like Johannesburg’s — meaning that written approval and compliance with SANS is expected prior to work.

Action if you install without approval: The municipality may require compliance, halt work, or charge penalties.

City of Ekurhuleni (East Rand)

Draft water services bylaws in Ekurhuleni state that:

• A person may not install a cistern or tank for water storage unless the tank is constructed of suitable materials, watertight, vermin proof, ventilated, and approved.

• After completion of installations, inspections by qualified plumbers and a certificate of compliance COC must be submitted, and the city may require compliance certificates.

Interpretation: Ekurhuleni clearly treats water tanks as regulated parts of a water installation — requiring both municipal approval and compliance documentation.

City of Johannesburg (CoJ)

The City of Johannesburg Metropolitan Municipality’s Water Services Bylaws similarly impose requirements:

• All water installations (which include storage elements like tanks) must comply with SANS 10252 Part 1 and you must obtain municipal approval.

• Installation or use of any pipe or fitting must be approved/authorized by the council.

Johannesburg’s approach: You need written permission and compliance with municipal technical schedules before installation.

Key Differences Between Cities

5. Bylaws: What They Require You to Do

Approval of Water Installations

Most municipal bylaws require that:

1. Owners apply for written approval prior to installation.

2. The application is submitted on a prescribed form with drawings that comply with relevant SANS standards.

3. A compliance certificate may be required after work is done.

Non-compliance can result in enforcement actions, including orders to stop work or rectify.

Who Can Do the Work

Only qualified plumbers or persons working under a qualified plumber are allowed to do installation work on water installations.

This means DIY underground connections or plumbing from municipal mains is usually not lawful unless supervised.

Documentation & Certificates

After completion:

• Municipal inspectors can require certificates confirming compliance with bylaws and standards.

• Without certificates, inspectors can require corrective work or stop installation.

6. Technical Standards: SANS & IOPSA

Even once you have municipal approval, your installation must comply with national technical standards — especially when dealing with potable water.

SANS Tank Standards

• SANS 1731:2017 applies to polyethylene tanks and governs construction criteria like UV stability, wall thickness, traceability, etc.

• If you buy a tank, ask for the SANS 1731 certificate from your supplier — only certified tanks are guaranteed compliant.

SANS 10252 & SANS 10400

Backup tanks that form part of a water installation must comply with:

• SANS 10252 (Water supply and drainage for buildings): Sets design, installation, and testing requirements for water systems.

• SANS 10400 (National Building Regulations – P for plumbing): Governs how plumbing interacts with building structures.

This ensures:

• Adequate connection methods

• Prevention of contamination

• Proper overflow and venting

• Safe placement and accessibility

Municipal bylaws usually reference these standards as the criteria for approval.

IOPSA’s Role

IOPSA (Institute of Plumbing SA) is not a law-making body, but it:

• Interprets how SANS standards apply in practice

• Issues compliance tables and guidelines for professional installers

• Helps plumbers understand their legal obligations to comply with SANS when certifying installations

Plumbers often need to provide a Certificate of Compliance (like PIRB certificates) to demonstrate that their work meets SANS requirements.

7. Step-by-Step Process: From Planning to Commissioning

Here’s how a compliant backup tank installation project typically goes:

1. Site Assessment – Determine tank size, location, impact on water lines.

2. Design & Drawings – Prepare layout showing connections to water supply and compliance with standards.

3. Application Submission – Submit to your municipality with drawings and fees.

4. Municipal Review – Municipality reviews and issues approval or queries.

5. Qualified Installation – Only a licensed plumber does the work.

6. Inspection & Certification – Municipal or third-party inspection and Certificate of Compliance issued.

7. Record Keeping – Keep all permits and certificates for future sale or audits.

8. Common Mistakes & Compliance Traps

• Skipping approval: Installing without approval can lead to fines or de-installation orders.

• DIY major plumbing: Municipal bylaws often prohibit unqualified persons from doing this work.

• Non-SANS tanks: Cheaper, non-certified tanks may not meet legal requirements.

• Ignoring backflow prevention: Improper installation can cause contamination and violate bylaws.

9. Conclusion

Yes—in most cases you need municipal approval (a permit) to install a backup water tank that interacts with your property’s water installation in Tshwane, Ekurhuleni, and Johannesburg. This involves submitting drawings, complying with SANS standards, and use of qualified installers.

With correct planning and compliance, you gain:

• Legal protection

• Safe, potable water delivery

• Long-term reliability and structural integrity

10. FAQs

Q: Do I need a permit if my tank just stores rainwater and isn’t connected to municipal mains?
A: Rainwater systems still often require approval if they connect to pressure lines or could mix with potable water — check local bylaws.

Q: How long does approval take?
A: It varies by municipality but prepare for several weeks in most cases.

Q: Can I just install a tank myself?
A: Only if the work doesn’t involve mains water connection; otherwise a qualified plumber is legally required.