The advent of remotely operated vehicles (ROVs) is transforming the way potable water tank inspections are approached, planned, and executed.
The difficulties linked with inspecting potable water tanks.
Potable water tanks serve various industries globally, including oil and gas platforms and onshore facilities. Maintaining the cleanliness and safety of the central water supply for both industrial and personal usage, such as cooking, showering, and drinking, is crucial. However, managing this task can be challenging. Presently, the predominant method of inspection involves draining the tank completely and mobilizing personnel for close-up inspections, which entails confined space risks. Consequently, tanks undergo cleaning or treatment as needed before being refilled. This method can lead to tank shutdowns lasting up to three days or even longer if remedial treatment is necessary.
The Risks of Neglecting the Water Tank Inspections
A water tank that hasn’t been inspected within the recommended timeframes may contain various contaminants, including microbial, chemical, hydrocarbon-based substances, as well as excessive debris and sediment. These contaminants pose risks to human health and the structural integrity of the tank. Among these risks, the formation of Legionella is particularly concerning. Legionella bacteria cause Legionnaires’ disease, a severe form of pneumonia, as well as Pontiac fever, a milder illness. Corrosion exacerbates the problem by promoting Legionella growth, as iron, a crucial nutrient for Legionella, is more readily available in corroded tanks, leading to higher rates of Legionella contamination.
ROVs and their Role in Tank Inspection
ROVs hold promise for enhancing traditional methods of water tank inspection. Panel Tanks by American Tanks has identified the following advantages of using ROVs compared to traditional methods:
- ROVs eliminate the risks associated with confined space entry, which is typically required for traditional inspections. This includes the associated permits, planning, and paperwork.
- ROV inspections eliminate the need to drain and refill water tanks.
- The use of ROVs reduces the time-consuming recommissioning process, often necessitating tank super chlorination after manned entry. Proper deployment of an ROV can obviate this step.
- In the event of necessary remedial work post-ROV inspection, recorded footage can be archived for future reference.
- ROV footage provides detailed, close-up views essential for examining the internal condition of a tank.
- Some ROVs offer advanced capabilities, such as arms capable of sampling from within a tank and measuring wall thickness.
Regardless of the method chosen for tank inspections, it’s crucial to adhere to best practices and prioritize the longevity and safety of both systems and personnel. Feel free to reach out to our teams to explore the potential benefits of tank inspection services and to receive guidance on effectively utilizing ROVs.
Many of the spaces designated for cleaning have never undergone cleaning due to their small size, tightness, or hazardous conditions. Our robots not only fit into spaces inaccessible to humans but also withstand heat, chemicals, and other environmental hazards that would pose risks to a live diver. We can conduct detailed inspections and assessments using technology that would otherwise be inaccessible.
By thoroughly assessing the contents of a tower or storage tank, we can provide more precise proposals and carry out better cleaning tasks. Having accurate information from the start streamlines the process, making it safer, quicker, and often more cost-effective for our clients.
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Call Panel Tanks by American Tanks at +1 800 656 0167
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