Water load bags, also known as water weight bags, are among the safest and most efficient options for crane and structural load testing. But like all rigging equipment, their performance and safety depend on good maintenance and regular inspections. As professionals in rigging hires, we cover some best practices to keep your water load bags in top condition, extend their service life, and reduce the risk of failure.
Understanding Water Load Bag vulnerabilities
Water load bags are typically constructed using high-strength, coated fabrics such as PVC or TPU, with RF-welded seams and reinforced lifting systems. Despite their robust design, they remain prone to the natural wear and tear that occurs from repeated usage and exposure to the natural environment.
The material degradation of the bag body, the seam deterioration and the wear in lifting harnesses and shackles are the most common areas of concern. Additional factors, such as extended exposure to UV and improper storage routines, can also lead to significant decreases in the lifespan of load bags. Recognising these vulnerabilities is the first step to maintaining the integrity of your gear.
Daily and Pre-Use Inspections
Before every test or lift, you should carry out a thorough pre-use inspection. This is essential for safety, as well as to adhere to any legal and regulatory compliance requirements.
Start with a full visual inspection of the bag. Lay it out flat on a clean surface and check for any signs of damage, such as punctures, tears, or abrasions. Pay close attention to the seams and welds—any signs of peeling, cracking, or delamination could indicate internal stress or ageing.
Next, inspect the lifting hardware. Shackles, webbing, and master links should be free from corrosion, deformation, or wear. Stitching on lifting slings must be intact, with no frays or loose threads. Ensure all rigging components are rated for the intended load and have up-to-date inspection tags.
Valves and hose fittings should be tested for ease of movement, clean sealing surfaces, and leak-free connections. Open and close valves fully to ensure there’s no sticking, and inspect camlocks and hose threads for cracks or wear. Lastly, review the load bag’s certification and logbook. All inspections, past repairs, and usage logs should be clearly documented and up to date.
Best Practices During Operation
Even a fully inspected water load bag can be damaged if mishandled during use. To minimise risk, always fill the bag at a controlled rate using the correct fittings. Sudden surges or overfilling can place unnecessary stress on the seams and lifting gear. Use calibrated flow meters or monitoring equipment where possible, and follow manufacturer guidelines on fill rate and capacity limits.
All bags purchased from Rigging Rentals come with instructions and safety specifications for you to familiarise yourself with. Following our instructions will enable you to correctly use the product, especially if you are new to using water load bags.
Post-Use Maintenance and Storage
Proper post-use care is critical to preventing long-term damage. After draining and rinsing, inspect the bag again to ensure no new wear has occurred during use. Then allow the bag to fully dry before storage. Storing a damp or improperly folded bag is one of the fastest ways to accelerate material degradation.
Periodic and Long-Term Inspections
In addition to pre-use checks, water bags should undergo thorough periodic inspections, even if they haven’t been used frequently. This is especially important if the bags are being stored for long periods or used in harsh environments.
A more detailed inspection should be performed every 3–12 months, depending on usage intensity. This includes checking seam thickness, measuring valve integrity, inspecting lifting harnesses for UV exposure, and performing internal leak testing. Any repairs must be done by qualified technicians following manufacturer’s specifications.
Rigging Rentals Water Loads Bags: Opt for safe and ready-to-use equipment
At Rigging Rentals, we know that regular, detailed inspections are essential to extending the life of our equipment and ensuring safety. That’s why our qualified technicians carry out thorough checks on all items before and after every rental.
Before water load bags leave our facility, they are carefully inspected against our strict safety protocols. We check for visible damage, assess seam wear, test valve integrity, and review the condition of lifting gear to confirm everything is safe and ready for immediate use. If any issue is identified, we act quickly—either repairing it on the spot or providing an alternative solution.
Once a rental period ends, the same meticulous process is repeated. Any signs of wear and tear are addressed promptly, efficiently, and in line with the highest safety standards, so every piece of equipment in our inventory remains reliable and ready for your next project.
Trust Rigging Rentals for your equipment inspections
Routine inspections and proper care of water load bags are more than just about keeping the equipment in working order. It’s about ensuring that your team is able to use safe, reliable and functional equipment.
At Rigging Rentals, we offer comprehensive inspection and testing services for all your lifting and rigging equipment, in compliance with Australian and International standards. Our qualified inspectors provide detailed reports and schedule routine inspections to suit your operations, ensuring your gear remains safe, compliant, and ready for use.
Our team of experienced and friendly professionals are ready to help you, so give us a call at 1300 744 736 or submit an enquiry form online, and we can discuss your requirements.
Disclaimer—The content provided on this blog is intended for informational purposes only. While we strive for accuracy, we cannot guarantee that the information presented here is completely accurate or up-to-date. The information should not be considered as professional or expert advice for rigging, lifting, or any related activities. Users should not rely solely on the information provided in this blog and should consult with qualified professionals and/or manufacturers before making any decisions or taking any actions related to rigging and lifting equipment or practices. Rigging Rentals is not responsible for any loss, injury, or damage that may occur as a result of applying the information provided on this blog.
