Swimming Pool Leak Repair Using Resin Injection Technology

Leaks within swimming pools can lead to ongoing water loss, blistering beneath tiles, structural deterioration, and costly future repairs if not addressed properly. At McBreen Environmental, we recently completed specialist swimming pool leak repair works using polyurethane resin injection technology to stop active water infiltration within a tiled pool structure.

This project involved identifying hidden defects beneath the pool finish, sealing active leaks, and repairing cracks and voids within the concrete structure using specialist injection systems designed for water-retaining assets.

Swimming Pool Leak Investigation and Water Infiltration Issues

The client contacted McBreen Environmental after identifying two small leaks within a swimming pool structure. Although the pool had previously been waterproofed and tiled by the client, blistering began appearing approximately five months later, indicating that water was tracking beneath the tiled finish.

Following investigation works and removal of selected tiles and waterproofing patches, several defective areas were exposed, including:

• Hairline cracks within the concrete structure

• Voids beneath the tiled finish

• Areas of active water infiltration

• Weak points surrounding rebar

These types of defects are common causes of swimming pool leaks and can allow water to travel behind finishes before becoming visible elsewhere within the structure.

Specialist Concrete Injection Repair Solution

Following consultation between McBreen Environmental and MC-Building Chemicals Mueller and Partners, a tailored resin injection repair specification was developed to address the identified defects and stop water ingress within the pool structure.

The repair works were completed using the MC-Fastpack Powertool and specialist injection cartridge systems, including:

• MC-Fastpack Injekt LE

• MC-Fastpack 2700

• MC-Fastpack 2300 Top

These specialist polyurethane resin systems are designed for sealing cracks, voids, and active leaks within concrete structures and water-retaining assets.

Polyurethane Resin Injection Works for Swimming Pool Repairs

Initial injection works using MC-Fastpack 2700 resin successfully stopped infiltration within the larger exposed section of the swimming pool structure. Further targeted injection works were then carried out within a smaller defective section where water ingress remained present.

Additional repair works included:

• Installation of MC-Fastpack 2700 resin

• Installation of 1.5 kits of MC-Fastpack 2300 resin

• Application of repair mortar to seal and fill around exposed rebar 

• 
  

During the repair process, tiles approximately one foot away from the main repair section began lifting, indicating an additional hidden crack or void beneath the tiled surface. The client planned to lift these surrounding tiles to investigate the area further following completion of the injection works.

Successful Swimming Pool Leak Repair Outcome

Following completion of the polyurethane resin injection and sealing works, all visible water infiltration had stopped. The client inspected the completed repair before the team left the site and was satisfied with the outcome achieved.

This project highlights how specialist concrete injection techniques can provide an effective and minimally disruptive solution for:

• Swimming pool leak repairs

• Concrete crack injection

• Water ingress repairs

• Structural void sealing

• Waterproofing defects

• Resin injection for concrete structures

Swimming Pool Crack Injection and Leak Repair Services Across Ireland

At McBreen Environmental, we provide specialist leak sealing and concrete injection services for swimming pools, tanks, chambers, basements, culverts, and other water-retaining structures across Ireland.

Our experienced team delivers targeted repair solutions using advanced polyurethane resin injection systems designed to stop active leaks, seal cracks, and extend the lifespan of concrete assets.

Our Services Include:

• Swimming pool leak detection and repair

• Concrete crack injection

• Polyurethane resin injection

• Water ingress and infiltration repairs

• Structural concrete sealing

• Waterproofing remediation

• Void filling and stabilisation

If you are experiencing swimming pool leaks, cracked concrete, water ingress, or waterproofing failures, contact McBreen Environmental to discuss a tailored repair solution.