Case study: cylindrical water tank lining / repair

The client

Fire safety is essential for our industrial clients – so when one of them discovered low-level leaks in their sprinkler tank, they knew they were in danger of failing their annual safety inspection.

The problem – sprinkler tank repair

The client discovered that their fire water tank, which supplied water to sprinklers throughout their factory, was corroded at the water level and had several low-level leaks.

Not only did this pose a threat to their factory in the event of a fire, but it also meant they would fail a safety inspection and incur higher insurance costs.

The solution – a fibreglass lining

The client's insurers recommended Sui Generis to carry out a complete and long-lasting water tank repair, taking into account leaks and corrosion.

Sui Generis recommended a fibreglass tank lining. Fibreglass is strong, flexible and able to seal leaks and repair corroded surfaces – plus it will last for many years to come.

An extra-strong fibreglass repair

Sui Generis removed a sludge build-up from the tank, grit-blasted the surfaces and applied a GRP lining to ensure every part of the tank was sealed tight. Then we left it with a good-looking light grey finish – all within a week.

Now that the work is complete, our client can rest assured that water will be ready and waiting for their sprinkler system when they need it – and they'll get top marks for safety.

How we lined the leaking water tank…

The water tank is grit-blastedThe water tank is grit-blasted

After the water was drained from the tank and the remaining sludge removed, the Sui Generis team grit-blasted the interior to prepare the surface for the application of the fibreglass lining.

Applying the fibreglass liningApplying the fibreglass lining

Next, all bolted areas within the tank were given a layer of fibreglass first. This acts as an extra layer of protection to prevent sharp metal breaking through. After this, the whole tank was given a complete layer of fibreglass while the low-level holes were given a double layer for extra strength.

Rebuilding a corroded areaRebuilding a corroded area

Because a band of severe corrosion had appeared at the water level line, the Sui Generis team removed the damaged areas and then rebuilt the upper part of the tank with fibreglass – four layers on the inside and an extra one outside, continuing above the corroded area for 150mm for extra strength.

A tidy, professional finishA tidy, professional finish

With the lining completed, the interior of the tank was resin-coated and flow-coated and an additional fibreglass coating was applied to the exterior of the tank to help it look neat and tidy. A light grey galvanized finish then completed the water tank refurbishment.

  • "I would not hesitate in recommending Sui Generis to any other company for this type of work and commend all three operators for their conduct and hard work."

  • K Lunn,
    Fibreglass lining to Sprinkler tank
    Read more testimonials

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