RESTUBE for diving

Yes. If you trigger RESTUBE Safety Buoy underwater, the buoy generates lift and pulls you upward via the safety leash connected to the belt. The same amount of gas is released into the buoy every time. This volume is designed to provide maximum buoyancy at the water surface (1 bar, ambient temperature). As depth increases, ambient pressure rises (approx. +1 bar per 10 m), the gas is compressed, and the resulting buoyancy decreases accordingly.

Buoyancy depending on depth:

• 0m depth = 1 bar = fullbuoyancy = 75N = 7.5kg
• 10m depth = 2 bar = half buoyancy = 37.5N = 3.75 kg
• 20m depth = 3 bar = third buoyancy = 25N = 2.5 kg
• 30m depth = 4 bar = quarter buoyancy = 18.75N = 1.87 kg
• 40m depth = 5 bar = fifth buoyancy = 15 N = 1.5 kg
  

As you ascend and the pressure decreases, the gas expands and the buoyancy of the buoy increases continuously until full buoyancy is available again at the surface.

Important safety notice:
Freediving is a beautiful and intense way to experience the water, but it comes with real risks. For this reason, it should only be practiced with proper training and always with experienced dive partners – never alone, even with personal safety equipment. Safety always comes first so that the experience in the water remains free, relaxed, and unforgettable.

ACTIVE is versatile and suitable for a wide range of activities on and in the water - both training and competition.

Use ACTIVE for swimming, stand-up paddling, fishing, boating, triathlon, kayaking and canoeing.

BEACH has a buoyancy of 50N and is ideal for families, children and seniors for leisure activities on and in the water. It is also suitable for stand up paddlers in swimwear in the summer - wherever there are no swimming aid regulations. ACTIVE has 75N buoyancy and is ideal for swimming or stand-up paddling, for training or competitions. EXTREME has a buoyancy of 75 N and is suitable for rough conditions when kite- and windsurfing, surfing or in professional use.

Yes, after replacing the CO2 CARTRIDGE, the Safety Buoy is immediately ready for use again. The sales package contains the safety buoy incl. an original RESTUBE CO2 CARTRIDGE that must be screwed in before use. After use, the safety buoy is very easy to prepare for use again: Deflate, insert a new cartridge, fold the buoyancy chamber according to the printed instructions, and stow the whole thing in the pouch! ATTENTION: Only original RESTUBE CO2 CARTRIDGES are 1.) 100% quality tested, 2.) seawater resistant, 3.) level tested and 4.) the necessary release force is matched to the release. The cartridges comply with the standard for life jackets DIN EN ISO 12402-7. If other cartridges are used, it cannot be guaranteed that the safety buoy will fill without problems in an emergency and the trigger may be damaged.

Detailed instructions for how to get the Safety Buoy ready to go again are available in our blog: https://restube.com/blogs/news/how-to-pack-restube-care-and-maintain-correctly

A CO2 cartridge can be used to trigger the Safety Buoy once. Afterwards, the empty CO2 cartridge must be removed, and a new original RESTUBE CO2 cartridge must be inserted.

This is simple, and only takes a few steps. You can view an instruction video here: https://restube.com/blogs/news/how-to-pack-restube-care-and-maintain-correctly

You can also blow up the Safety Buoy manually using the mouth valve. This is a practical option if you are using the Safety Buoy as a swim buoy, or for snorkeling.

You can purchase a 2-pack of original RESTUBE CO2 cartridges from our shop!
10.9 g CO2 CARTRIDGE for BEACH: https://restube.com/collections/cartridges/products/restube-beach-spare-cartridge
16g CO2 CARTRIDGE: https://restube.com/collections/cartridges/products/restube-spare-cartridges