Common problems and solutions in pontoon installation

I. Loose connection or excessive gaps after pontoon assembly

Solution:
1. Inspect all connections: Use a wrench to retighten the bolts (apply even force to avoid over-tightening, which may cause the float to crack). For clip-on connections, ensure they are securely locked in place with an audible "click."
2. Correct deformed floats: Minor deformations can be fixed by applying heat (HDPE material can withstand temperatures around 60°C) and then pressing the float back into shape. Severely deformed floats need to be replaced.
3. Replace suitable connectors: Select bolts according to the size of the pre-drilled holes in the float (typically M8–M12). If necessary, add metal washers to improve fit and reduce gaps.

II. Overall tilt or uneven load distribution of the float

Solution:
1. Adjust the Mooring System: Loosen overly tight anchor chains to ensure consistent tension across all four corners (tension can be measured with a spring scale). Distribute counterweights evenly along the bottom edges of the pontoons.
2. Optimize Pontoon Layout: Add or remove pontoons following the "symmetry principle" (e.g., add 1–2 pontoons to each side of the long edge). Recheck the flatness with a spirit level. In high-water areas, place lightweight buoyancy blocks under the low-lying side to level the structure.
3. Install Flow-Resistant Devices: Add deflector plates on the upstream side to reduce water impact, or install additional anchor points perpendicular (90°) to the main anchors to balance lateral forces.

III. Insufficient buoyancy or excessive sinking amount

Solution:
1. Check for leaks: Submerge the float in water to observe for air bubbles (locate the leak and repair it with specialized sealant). For sealed floats, inspect the interface gaskets for signs of aging and replace them promptly if necessary.
2. Control the load: Calculate the total weight based on "100 kg per person + equipment weight," and ensure the number of floats meets the requirement that "total buoyancy = total load × 1.5 (safety factor)." In areas with excessive weight, distribute the load or add more floats.
3. Replace aging components: For floats used for over 8 years (especially in outdoor environments), check the wall thickness. If it falls below the standard value (e.g., reduced from 5 mm to 3 mm), replace the entire float to prevent sudden failure.

IV. Corrosion of connectors or attachment by aquatic organisms

Solution:
1. Upgrade anti-corrosion materials: In seawater environments, replace connectors with 316 stainless steel; in freshwater areas, use at least 304 stainless steel. Apply anti-rust grease (e.g., petroleum jelly) to bolts to block moisture.
2. Regular cleaning and maintenance: Brush connectors monthly with a stiff-bristled brush and neutral detergent. For severe buildup, use a specialized algaecide (avoid those that corrode the pontoon material). Before winter shutdown, disassemble connectors, remove rust, and reassemble.

VI. Floating buoys cracking due to freezing in winter

Solutions:

1. Winter pre-treatment: For hollow buoys, open the drain valve to empty accumulated water. For sealed buoys, inject 30% antifreeze (avoid full filling) to reduce the pressure from ice expansion. 2. Ice breaking or lifting: Before freezing, use a crane to lift the entire buoy off the water surface (suitable for small floating platforms), or place ice-breaking devices (such as electric ice stirrers) around to keep the area around the buoys free of thick ice. 3. Selection of frost-resistant materials: In low-temperature areas, priority should be given to low-temperature resistant HDPE buoys (capable of withstanding -40℃ to 60℃), and ordinary plastic buoys should be avoided (they are prone to embrittlement at low temperatures).