What to do if your hot water bottle is leaking from the body

Hot water bottles are a popular choice for keeping warm and cosy especially during winter months. However, on occasion users can encounter leaking from the body. Here at The Hot Water Bottle Company, we want to keep your toes toasty and safe so on this page we explore the potential causes of this problem, how to identify it, and offer solutions to prevent leaks from occurring in the future so you can keep yourself and your loved ones safe whilst using hot water bottles.

Causes of Leaking

  1. Material Degradation: Over time, the rubber or plastic material of the hot water bottle can degrade due to exposure to heat, chemicals, or simply age. This degradation can lead to cracks or holes, resulting in leaks. A hot water bottle can prematurely degrade if a hot water bottle is not filled, used or cared for properly.
  1. Improper Filling: Overfilling the hot water bottle can cause pressure to build up, which may lead to leaks at the closure. Only fill to the recommended level, as specified in the instructions for use. Before inserting the stopper it is essential to expel air by lowering carefully onto a flat surface until water appears at the opening. Only then insert the stopper and tighten correctly. This allows for expansion in use.
  1. Temperature Shock: Sudden changes in temperature, such as pouring boiling water into a cold bottle, can cause the material to expand rapidly and crack.
  1. Wear and Tear: Regular use can lead to wear and tear, especially at the seams or areas that are frequently bent or twisted when used.
  1. Manufacturing Defects: Occasionally, a hot water bottle may have manufacturing defects that can cause leaks. This is less common but can happen and is usually identifiable in the first couple of uses of the hot water bottle.

Identifying the Leak

To determine if your hot water bottle is leaking, follow these steps:

  • Visual Inspection: Check the body of the bottle for any visible cracks or holes. Pay close attention to the seams and the area around the stopper.
  • Water Test: If the visual check does not determine any cracks or holes fill the bottle with cold water and let it sit for a few hours. Place it on a towel or a surface that can absorb water. If the towel becomes wet, you likely have a leak.

Solutions

  1. Replacing the Hot Water Bottle: If there is a leak or you are not confident that your bottle is in good condition it is best to replace it. Look for high-quality options that are less prone to leaks. Please read our blog: What to look for when buying a hot water bottle?
  1. Proper Usage: To prevent leaks in the future, always follow the manufacturer's instructions for filling, using and caring for the hot water bottle, that should come with a product that is reputable. Avoid overfilling and ensure the water is not boiling when filling. Please see our safety video: how to fill, use and care for your hot water bottle.
  1. Regular Maintenance: Inspect your hot water bottle regularly for signs of wear and tear. Replace it if you notice any significant degradation. Please read our blog: When should I replace my hot water bottle?

Conclusion

A leaking hot water bottle can be a frustrating issue, but understanding the causes and solutions can help you ensure you are keeping yourself and your loved ones safe whilst using a hot water bottle. By following the instructions for filling, use and care that come with your hot water bottle and conducting regular inspections, you can ensure your hot water bottle is safe to use and enjoy its benefits without the worry of leaks.

You might also like to read our blog post: Using hot water bottles safely with babies and children.