How to Fix a Cracked PVC Pipe Without Replacing It (2024)

PVC (polyvinyl chloride) pipes are commonly used in sewer systems due to their durability, strength, and corrosion resistance. These pipes are also lightweight and easy to install, making them a popular choice for both residential and commercial sewer and stormwater systems.

What is PVC Piping?

PVC sewer pipes are typically made from PVC resin, which is a synthetic polymer that is produced through the polymerisation of vinyl chloride monomers. The resulting PVC material is strong, durable, and resistant to chemical and environmental degradation.

What are the Benefits of PVC Piping?

One of the key benefits of PVC sewer pipes is their resistance to corrosion. Unlike traditional metal pipes, PVC pipes do not corrode over time, which can extend the life of the sewer system and reduce maintenance costs. PVC sewer pipes also have a smooth interior surface, which helps to prevent clogs and blockages caused by the build-up of debris or sediment. This smooth surface also promotes faster water flow, which can help reduce the risk of backups or flooding.

The Most Common Choice in Sewer & Storm Water Systems

PVC pipes are a common choice for sewer and storm water systems due to their durability and affordability. Many people don’t expect PVC pipes to need repairing as they are typically not as old as earthenware. However, over time these pipes may become damaged due to a variety of reasons such as incorrect installation (joins not glued properly), age, exposure to extreme temperatures or accidental damage when other trades access the location. One of the most common problems that occur with PVC pipes is cracking.

5 Common Ways to Repair PVC Piping

There are many methods for fixing cracked PVC pipes but as with any underground pipe work, the problem is access. Some common methods include relining the pipe, adhesive tapes, or using a chemical or epoxy-based solution to seal the damaged area.

1. Fibreglass Resin Tape

Fibreglass resin tape is a quick and effective way to seal leaks and reinforce the strength of PVC pipes. It is especially useful for emergency repairs and can be applied under wet conditions.

2. PVC Cement and Primer

PVC cement and primer is a widely used method for joining PVC pipes and fittings, providing a strong and permanent bond. It can also be used to seal small cracks and holes in PVC pipes.

How to Use:

Prepare the Surfaces: Clean and dry the pipe surface. If repairing a crack, sand the area to create a smooth surface.
Apply the Primer: Coat the area with PVC primer, preparing it for the cement.
Apply the Cement: Generously apply PVC cement over the primed area or on the pipe and fitting surfaces.
Join the Pieces: If connecting a pipe and fitting, insert the pipe into the fitting, twisting slightly to ensure an even distribution of cement. Hold in place for a few seconds.

3. Epoxy Resin

Epoxy resin is a versatile repair material that can seal leaks, fill cracks, and bond materials together. It provides a durable and waterproof solution for PVC pipe repairs.

How to Use:

Prepare the Pipe: Clean the damaged area thoroughly.
Mix the Epoxy: Follow the manufacturer’s instructions to mix the epoxy resin.
Apply the Epoxy: Spread the mixed epoxy over the damaged area, ensuring a generous and even application.
Cure the Epoxy: Allow the epoxy to cure fully, creating a hard, durable repair.

4. Rubber and Hose Clamp

The rubber and hose clamp method is a quick and temporary solution for small leaks in PVC pipes.

How to Use:

Prepare the Pipe: Clean and dry the area around the leak.
Cut the Rubber: Cut a piece of rubber (e.g., from an old hose or rubber sheet) large enough to cover the leak and extend a few inches on either side.
Secure the Rubber: Place the rubber piece over the leak and secure it in place with hose clamps on either side of the leak.
Tighten the Clamps: Tighten the hose clamps to compress the rubber against the pipe, creating a seal.

5. Pipe Relining

Pipe relining has become a preferred method of fixing underground PVC sewer or stormwater pipes over traditional excavation and replacement for several compelling reasons:

Cost-Effective: Pipe relining is often more budget-friendly than traditional replacement. Excavation and replacement involve labour-intensive tasks and extensive material costs, including digging, pipe removal, and restoration of the landscape. Pipe relining eliminates many of these expenses, making it a cost-effective option.
Minimal Disruption: Traditional pipe replacement involves digging up large sections of the landscape, which can be highly disruptive and damaging to the property. Pipe relining is minimally invasive and preserves the integrity of your landscaping, driveways, and structures, reducing the overall disruption to your property.
Time Efficiency: Pipe relining can be completed in a fraction of the time required for excavation and replacement. This means less downtime and inconvenience for property owners and businesses, making it an attractive option for those who want a quick solution.
Longevity: Relined pipes are often more durable, thanks to the lining material, which can extend the lifespan of the pipes by several decades. This results in long-term cost savings and fewer future repair or replacement needs.
Environmental Impact: Traditional pipe replacement involves digging up and disposing of old pipes and materials, contributing to a significant environmental footprint. Pipe relining reduces this impact by minimising excavation and waste, making it an eco-friendly choice.
Versatility: Pipe relining can be used on various pipe materials, including PVC. Whether you have PVC, clay, cast iron, or another material, relining can be customised to your specific needs, offering a versatile solution.
Preventative Maintenance: Pipe relining can act as a preventative measure against future pipe issues. The lining material serves as a barrier against root intrusion and chemical corrosion, reducing the likelihood of future problems.
Improved Flow: Relined pipes often have smoother interior surfaces, reducing the risk of blockages and improving the flow of wastewater and stormwater. This can enhance the overall performance of your drainage system.
Warranty and Guarantees: Many pipe relining companies offer warranties on their work, providing peace of mind for property owners. This added assurance can be a significant factor in choosing pipe relining over excavation and replacement.

Weighing up the Options

Thanks to its durability, resistance to corrosion, weight, smooth interior and its cost efficiency, PVC Piping is one of the most commonly used and reliable forms of piping for domestic and commercial plumbing usages.

Simple techniques such as using a rubber hose & clamp, adhesive tape or epoxy resin can help with temporary repairs for broken PVC, whereas Pipe Relining is the preferred method for damaged and cracked PVC pipe that is underground or in hard to reach places.

Repair your PVC pipes today with Pipe Relining Solutions

Pipe relining has emerged as the preferred method for fixing underground PVC sewer or stormwater pipes due to its cost-effectiveness, minimal disruption, time efficiency, long-term durability, environmental friendliness, versatility, preventative maintenance benefits, improved flow, and the peace of mind provided by warranties. These advantages make it a practical and efficient solution for preserving and enhancing your underground piping system while minimising costs and inconveniences.

Contact Pipe Relining Solutions today for a free* pipe relining quote.