November 21, 2025

A properly maintained water tank keeps your facility safe, efficient, and compliant. But even the most durable tanks eventually show water tank service signs such as wear, contamination, or mechanical failure. When these issues go unnoticed, they can lead to structural damage, unsafe water conditions, operational downtime, and costly emergency repairs. To help facility owners stay ahead of the curve, here are the top 10 signs your water tank needs professional service — and why timely action can save thousands of dollars. 1. Visible Corrosion or Rust Corrosion is one of the first and most obvious warning signs. Whether you see rust spots on steel surfaces or discoloration inside the tank, corrosion indicates that protective coatings have started to fail. If ignored, it can progress quickly and compromise the structural integrity of the tank. 2. Sediment or Sludge Buildup If your tank hasn’t been cleaned in over a year, sediment may be accumulating at the bottom. Sludge reduces usable capacity, lowers water quality, and encourages harmful bacteria growth. Facilities that rely on clean water—industrial, commercial, or potable systems—should schedule routine cleaning to avoid contamination issues. For safe and comprehensive cleaning, explore our professional tank cleaning services. 3. Discolored or Foul-Smelling Water Changes in color, odor, or taste are major indicators of internal contamination. The cause could be algae, biological growth, deteriorating coatings, or stagnant water. Professional technicians can quickly identify the source and restore safe water conditions. 4. Leaks or Moisture Around the Tank Even small leaks often signal bigger internal issues. Moisture near the tank base, puddling, or damp surfaces usually mean there is a breach, failing gasket, or damaged joint. Early repairs prevent the leak from spreading and avoid expensive structural failures. 5. Unusual Noises or Vibrations Clanging, popping, or vibrating sounds can be caused by pressure imbalance, loose components, or internal damage. None of these should be ignored — they often indicate that the tank is under stress or operating outside normal conditions. 6. Inconsistent Water Pressure If your facility suddenly experiences pressure drops or fluctuations, the tank may be the cause. Sediment buildup, clogged pipes, or damaged valves restrict flow and prevent the system from operating efficiently. 7. Coating or Liner Deterioration A failing liner can expose interior walls to corrosion and contamination. Blistering, peeling, cracking, or bubbling inside the tank is a strong sign that your tank needs recoating, repairs, or partial refurbishment. 8. Structural Deformation Bulging walls, warped roof panels, sagging support structures, or uneven floors are extremely serious warning signs. Deformations often indicate internal pressure problems, corrosion damage, or foundation issues that require immediate professional evaluation. 9. It Has Been Over a Year Since Your Last Inspection Regular inspections are the foundation of tank health and longevity. Most facilities require annual tank inspections to stay compliant and detect early-stage problems. If it’s been more than 12 months — or if any of the signs above apply — it’s time to bring in certified professionals. Why Timely Professional Service Matters Ignoring early warning signs can lead to: Raven American Tanks provides a full range of inspection, cleaning, repair, and refurbishment services — ensuring your tank performs reliably for years to come. Final Recommendation If your tank is showing any water tank service signs, don’t wait for a system failure. Schedule a professional assessment to restore performance, maintain safety, and extend the lifespan of your tank. You can also rely on our certified inspection specialists to evaluate your system thoroughly.