How to Deal with Persistent Tank Leaks

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Tank leaks might seem like minor nuisances at first, but they have a way of turning into big headaches if they aren’t dealt with quickly. Whether it’s a steady drip or a thin trickle down the side of your tank, those leaks are telling you something’s gone wrong. What starts as a small inconvenience can end up wasting water, damaging surrounding structures, and even affecting nearby equipment.

Not all tank leaks are the same, though. Some are easy to spot and manage for a short time. Others are hard to find and keep coming back no matter what you’ve tried. Dealing with these persistent leaks takes a more focused approach, starting from understanding what’s causing the problem right through to planning out long-term solutions. The good news is that tank leaks don’t have to be a permanent frustration if caught and handled properly.

Identifying The Source Of Leaks

Before anything can be repaired, the first step is knowing exactly where the leak is and what might be causing it. Leaks don’t always show themselves in obvious ways, especially with older tanks or those used for storing chemicals or treated water. And if the tank surface is dirty or covered in residue, leaks might not be visible, especially slow ones.

Here’s a simple process for checking your tank for leaks:

1. Start with a close-up visual inspection. Look along the seam points, near the base, around any piping or valve connections, and along the walls.

2. Check for signs like rust, stains, mould, or discolouration. These could show where moisture is forming over time.

3. If the tank is indoors or in shade, use a torch to look for any moisture trails or marks that stand out.

4. For metal tanks, pay attention to corrosion patches that might be hiding cracks.

5. Don’t forget to check around the floor area if the tank is raised. Wet spots around the base could mean a small slow leak.

One example we’ve come across involved a tank that kept leaking around one of its fittings and no amount of tightening seemed to help. It turned out the seal had cracked just inside the joint, only visible once the connection was partially dismantled. These are the kinds of leaks that quietly keep coming back unless they’re dug into properly.

Temporary Fixes Vs. Permanent Repairs

Once a leak is spotted, many people go straight to patching it to stop the dripping. That might help for the next few hours or days, but patches are never built to last, especially with storage systems that go through temperature shifts or hold pressurised liquid.

Temporary fixes might include:

– Taping the leak with high-strength waterproof tape

– Applying basic sealants or silicon around the leak site

– Using clamps over hose or pipe joints

Quick fixes can buy you a bit of time, but they all have their limits. Tape can peel, sealants can crack, and added pressure often pushes the leak elsewhere.

Permanent repairs depend on the material of the tank and the level of damage. For example:

– Tanks made of steel might need welding or replacing a section entirely.

– Plastic tanks may benefit from heat-stabilised patches or specialist liner repairs.

Concrete tanks often need cracks cleaned out and filled using chemical-resistant repair compounds.

– In all tanks, failed fittings or valves should be replaced completely rather than adjusted.

The key is matching the repair method to the way the tank was built, so the fix doesn’t cause more problems later on. A rushed or mismatched repair can sometimes end up causing even more leaks or weakening the whole area if done without proper care.

Preventative Measures To Avoid Future Leaks

Fixing a leak once it shows up is just part of the job. Keeping future leaks from happening in the first place is where long-term results come from. Tanks wear down over time, so staying ahead of damage means checking them regularly and choosing the right materials from the beginning.

Here’s how tank owners can reduce the chances of leaks appearing again:

– Stick to a schedule for checking your tank. Every few months, give it a once-over for cracks, rust, joint movement, or other odd changes.

– Clean your tank properly during maintenance. Sediment and debris that sit too long can eat away at coatings or linings.

– Don’t skip over the small stuff like loose valves, shifting fittings, or older pipework. These can all lead to gradual leaks.

– When parts do need replacing, go for high-quality fittings and liners made to hold up under the conditions your tank sees, especially if storing chemicals, fuel, or hot liquids.

– Use seals and coatings that match the tank’s purpose. The wrong sealant can break down fast and allow moisture back through.

– Keep an eye on expansion and movement issues. Some tanks shift slightly on their base or flex with temperature changes. This can stress the joints if not set up to handle the movement.

A good example comes from a site that had swapped its heavy-duty tank cover with a cheaper one during a quick fix. Over time, that swap allowed increased moisture inside, which introduced bacteria growth and started eating away at the sealant. A more durable material upfront would have avoided a long list of issues later on.

Preventing tank leaks doesn’t need fancy tools or tech. It just needs steady, proper care and a focus on the right materials with no half-measures.

When To Seek Professional Help

It’s tempting to keep adjusting things on your own, especially when the leak looks small or seems under control. But there comes a point when it’s better to call in experienced help. If the leak has returned after more than one repair, or if you can’t pinpoint the cause after several checks, it’s time to hand the issue over.

Here are signs a tank issue needs a proper repair crew:

– The leak area is difficult to access or sits under a connection you can’t safely move.

– You’re finding other problems, like rust or pressure changes, along with the leak.

– Temporary patches don’t last a full week, even after redoing them a couple of times.

– The leak’s source isn’t visible from any outer part of the tank.

– The tank’s age has passed its typical service life, and you’re spotting signs of general wear and tear.

An experienced crew can run pressure tests, inspect joints and linings properly, and put long-term fixes into place using the right gear and materials. They’ll know what to look for and can tackle small problems before they grow into structural ones. While a one-off leak might seem manageable by yourself, ignoring repeated ones can lead to much more costly damage down the line.

Stop Ongoing Leaks from Draining Your Resources

Every tank is a major investment, whether it’s for water, chemicals, fuel, or waste. Like anything else built to perform over the long term, it needs care. Letting leaks appear again and again isn’t just frustrating. It weakens the system and shortens how long you can rely on it.

The good news is a strong maintenance plan doesn’t need to be complicated. Keeping a regular set of checks spaced throughout the year can help you stay ahead of wear. It also gives you a better picture of how the tank is holding up overall. You’ll get more life out of your system and avoid dealing with messy failures when things finally give way.

Building this into your routine now can save you later. It helps you stay on top of your tank’s condition and puts you in a better position to act before small issues turn into big ones. Whether the tank is out in the sun or hidden inside a facility, maintaining it regularly always pays off.

Proactive maintenance is key to keeping tank systems running smoothly and prolonging their lifespan. Regular inspections and timely interventions can prevent small problems from escalating. If you’re seeing signs of persistent leaks that need professional attention, consider our comprehensive services. Learn more about reliable tank repairs from the team at ATM Tanks and see how we can help protect your infrastructure long term.

Aaron James
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About The Author

Aaron James
Aaron has been working at ATM Tanks for the past 5 years. He has completed a wide range of projects across Australia including new tank builds, cleaning and servicing existing tanks and countless tank inspections. However he has excelled recently at project management for ATM Tanks.

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