Regular water storage tank inspection is vital for maintaining safe, clean water and ensuring your system meets regulatory requirements. From potable water tank inspection to structural assessments, professional inspections protect both water quality and tank integrity.
Why Water Storage Tank Inspection is Important
Over time, tanks can develop sediment buildup, corrosion, and liner damage. Without routine water quality inspection, you risk:
- Contaminated potable water that fails safety standards.
- Sediment and biofilm that affect taste, odor, and clarity.
- Structural failures caused by corrosion or panel damage.
- Fines for non-compliance with health and safety regulations.
Types of Water Storage Tank Inspections
Visual Inspections:
- Carried out internally or externally to check for cracks, rust, coating damage, or leaks.
- Can be performed while the tank is in service using ROV (Remotely Operated Vehicle) inspection services.
Potable Water Tank Inspections:
- Follow strict hygiene protocols to avoid contamination.
- Often include water quality testing for bacteria, chlorine levels, and chemical balance.
Structural Integrity Assessments:
- Focus on weld seams, panel joints, roof structures, and foundations.
- Identify issues early to prevent costly replacements.
Inspection Reports:
- Detailed documentation of findings, including photographic evidence.
- Provide maintenance recommendations and timelines for repairs.
Key Steps in a Professional Tank Inspection
Pre-Inspection Planning:
- Review tank design, service history, and previous inspection reports.
- Prepare safety measures, especially for confined space entry.
External Examination:
- Check roof hatches, vents, ladders, and overflow systems.
- Look for corrosion, loose bolts, and structural deformation.
Internal Assessment:
- For potable water tanks, use ROV inspections to avoid draining the tank unnecessarily.
- Inspect liners, coatings, and sediment accumulation.
Water Quality Testing:
- Test for turbidity, pH balance, residual chlorine, and microbial contamination.
Reporting and Recommendations:
- Provide a clear summary, risk assessment, and maintenance plan.
How Often Should Water Storage Tanks be Inspected?
- Potable water tanks: Every 1–3 years depending on local regulations.
- Fire protection tanks: At least annually, as per AS 1851 or NFPA standards.
- Industrial tanks: Inspection intervals vary based on stored contents and operational demands.
Tank Cleaning and Maintenance after Inspection
If inspections reveal sediment build-up or contamination:
- Drain and clean the tank using high-pressure washing or vacuum removal.
- Disinfect the surfaces with approved sanitizing agents.
- Repair or replace liners to prevent future leaks or contamination.
Choosing a Reliable Tank Inspection Company
When selecting a service provider:
- Ensure they have experience with your tank type (steel, concrete, GRP, HDG, etc.).
- Verify they follow confined space safety and potable water hygiene standards.
- Look for providers offering ROV inspections to minimize downtime.
A proactive water storage tank inspection program ensures safe, compliant, and high-quality water storage. Combine a thorough inspection checklist with timely water tank cleaning and professional maintenance to extend your tank’s lifespan and safeguard your water supply.
Contact Raven American Tanks at +1 800 656 0167 for a quote tailored to your application.
