This Product Spotlight focuses on DeepWater Buoyancy’s shallow water Instrument Bottom Mounts.
Pop-Up Buoy Recovery System
DeepWater Buoyancy’s Pop-Up Buoy Recovery System (PUB) allows for direct retrieval of seabed packages, such as anchors, anchor lines, and bottom-mounted frames with instruments. Once the acoustic release is activated and completes its disconnection, the buoy lifts free from the canister and rises to the surface. A synthetic line connects the buoy directly to the framework of the seabed item and allows for retrieval.
The standard PVC canister holds 75 meters of 1/4″ synthetic line. (Other line lengths are available upon request.) The recovery buoy is made from high-strength DeepTec® solid syntactic foam which is finished with an abrasion-resistant, polyurethane elastomer coating.
The canister subassembly has attachment features to permit various mounting configurations, including easy mounting to our BTM-AL50 tripod bottom mounts.
Our standard recovery systems are shown below. We also offer custom recovery systems.
Contact Us
To get assistance in choosing or configuring the correct product, to obtain a quote, or to place an order, please contact us.
BTM-AL50-B Collapsible Bottom Mount with Teledyne SentinelV ADCP and DeepWater Buoyancy Pop-Up Recovery Buoy System
DeepWater Buoyancy Pop-Up Recovery Buoy System mounted on leg of BTM-AL50-B Collapsible Bottom Mount 
DeepWater Buoyancy Pop-Up Recovery Buoy System mounted on leg of BTM-AL50-B Collapsible Bottom Mount 
Pop-Up Buoy with Syntactic Collar removed showing Teledyne Benthos R500 Acoustic Release
Pop-Up Buoy with Syntactic Collar removed showing Teledyne Benthos R500 Acoustic Release
Pop-Up Buoy clamping detail showing Benthos 875 Acoustic Release.
Pop Up Recovery System with Edgetech PORT-LF SD 
Installing EdgeTech PORT-LF SD into DeepWater Buoyancy Pop-Up Buoy Recovery System.
EdgeTech PORT-LF SD Acoustic Release in Pop-Up Buoy Recovery System.
Installation of Sonardyne LRT into DeepWater Buoyancy PUB-LRT.
Sonardyne DORT Pop-Up Recovery System shown unassembled with acoustic release installed.
Sonardyne LRT installed into a DeepWater Buoyancy PUB-LRT.
iXblue Oceano 500 Acoustic Release Pop-Up on a BTM-AL50 Tripod Bottom Mount
Pop-Up Buoy Recovery System with iXblue Oceano 500 Acoustic Release
Sonardyne DORT Acoustic Release Pop-Up Recovery System for seafloor bottom mounts.Related Media
Exhibiting at IPF 2025
DeepWater Buoyancy is exhibiting at Oceantic Network’s International Partnering Forum on April 28-May 1, 2025 in Virginia Beach, VA.
Ocean Business 2025
DeepWater Buoyancy will be exhibiting at Ocean Business 2025 at the National Oceanographic Centre in Southampton UK.
Related products
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UpdatedInstrument Bottom Mounts
Whether your bottom mount requirement is for a mid-frequency or high-frequency ADCP, we can accommodate you. These diver-serviceable units can be produced to accept your ADCP, battery, CTD, acoustic modem or other instrument. The popular BTM-AL50 is now offered in both welded and collapsible versions.
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Trawl-Resistant Bottom Mounts
These TRBMs may be deployed by free-fall, or by a diver or ROV. They have a double axis gimbal inside a buoyant recovery pod, and are designed to permit retrieval of all mounted instruments. An optional Spectra line pack can be provided for recovery of the base for turnaround deployments. Our TRBMs are available in depths of over 500 meters. We also offer disposable concrete bases.
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