COMMERCIAL SCUBA IS WHERE IT ALL STARTS AND VERY DIFFERENT TO RECREATIONAL SCUBA BOTH EQUIPMENT WISE AND PROCEDURE WISEAS THE RISKS ARE GREATER
TWIN CYLINDERS EITHER TWIN 10 LITRE OR TWIN 15 LITRE REQUIRES A DIVER TO BE VERY COMFORTABLE IN THE WATER AND AT HOME IN THE WATER - RULES OF HALVES AND THIRDS ARE REQUIRED FOR COMMERCIAL SCUBA
FULL FACE MASKS REQUIRE A DIVER TO BE RELAXED AND IN CONTROL WHILE IN UNDERWATER
BUOYANCY DEVICES ARE NOT THAT COMMON IN COMMERCIAL DIVING SO BEING ABLE TO SWIM WELL IS VERY IMPORTANT WHEN THINGS GO WRONG LIKE LOSING THE SHOTLINE IN A CURRENT
FOR AIR DIVERS THE SAYING GOES THE OCEAN HAS NO BOTTOM SO GETTING TO THE JOB MAY REQUIRE A SWIM OVER THE GEAR IS HEAVY SO YOU TO BE A BIT FITTER THAN FOR MOST OTHER JOBS
MOST OF THE TIME YOU ARE ALONE WORKING ON THE BOTTOM IT IS JUST YOU AND THE JOB NO EXCUSES - YOU SUPPORT TEAM ARE ON THE SURFACE IF YOU NEED THEMIN AN EMERGENCY
DIVING FROM INFLATABLE BOATS AFTER TAKING PART IN LAUNCHING THEM IS ALL IN A DAYS WORK
DIVING FROM 12 M BOATS IS COMMON IN INSHORE DIVING AND SEA SICKNESS IS SOMETHING YOU WILL NEED TO ADAPT TO AS YOU PAID TO GET THE JOB DONE
BIGGER VESSELS ARE GENERALLY FOR BIGGER JOBS WHICH REQUIRE DIVERS WITH MORE EXPERIENCE
HAZMAT DIVING REQUIRES A CALM DIVER VERY COMFORTABLE IN THE WATER
HAZMAT ZERO VIZIBILITY AND CHEMICALS EATING THE SUIT AWAY
A HAZMAT SUIT HAS A BREAKTHROUGH TIME IN MINUTES BEFORE THE CHEMICAL EATS THROUGH THE SUIT IF DIVING IN CHEMICALS
DECOMTAMINATION ON STABLE LAND
DECONTAMINATION ON A ROLLING BOAT OR VESSEL
TESTING OF HAZMAT SUITS IS A CRITICAL PART OF HAZMAT DIVING AND YOUR LIFE DEPENDS ON IT BEEN DONE CORRECTLY - THE SAME GOES FOR ALL COMMERCIAL DIVING OPERATIONS - THE RISKS ARE REAL AND THEY HAVE TO BE MANAGED RESPONSIBLY
COMMERCIAL DIVING HAS COME A LONG WAYFROM THE STANDARD DRESS DAYS OF DIVING
MODERN EQUIPMENT CONSITS OF A HELMET LIGHTER THAN THE SATNDARD DRESS AND A BAILOUT SYSTEM PROVIDING EMEGENCY AIR IN AN EMERGENCY SITUATION FROM A CYLINDER WORN ON THE DIVERS BACK
IT IS NOT ONLY DIVING EQUIPMENT BUT ALSO SUPPORT EQUIPMENT WHICH THE DIVING TEAM MAY NEED TO WEAR AND OPERATE IN
MOVING DIVING EQUIPMENT TO WORK SITES CAN REQUIRE EXTRA SKILLS AND ENERGY IN LOADING AND UNLOADING
CONTAINERISED DECOMPRESSION CHAMBERS AND DIVE CONTROLS IN A SHIPPING CONTAINER ARE VERY COMMON THESE DAYS COMPARED TO THE OLD DAYS WHERE ALL WAS SEPERATE AND LOOSE
4X4 UTILITY TRUCKS ARE REQUIRED AT TIMES TO GET DIVING EQUIPMENT INTO REMOTE LOCATIONS
PDC RIGGING TRUCK WITH 85 TON PER METRE CRANE IS USED TO MOVE TRAINING EQUIPMENT AS WELL AS HELIUM GAS QUADS, HRC ETC FOR CLOSED BELL DIVING TRAINING
PDC RIGGING TRUCK LIFTING AND STACKING 20 TON PDC SHIPPING CONTAINERS 3 CONTAINERS HIGH
COMMERCIAL DIVING REQUIRES SUPPORTING EQUIPMENT NOT OFTEN THOUGHT ABOUT AND THIS INCLUDES SPECIALISED TRAINING
This was the PDC DNV 2.7,1 Offshore Dive Spread containing a Twin Lock DDC and Surface Mixed Gas Dive Control Used For Diver Training Including Surd 02 It was sold in 2024
The PDC Surface Mixed Gas 3 Diver Dive Control
The PDC Twin Lock 1500 DDC built into the DNV 2,7-1 Containerised offshore Dive Container. Besides the Dive Control and DDC the container also had 12 x 50 litre cylinders built into the one end.
The PDC Wet Bell Dive Control and LARS on a ISO 6m Container foot print easy for moving if required during training. The Dive Control contains the Wet Bell Control and Dive Control for up to 6 Surface Supply Divers
PDC Wet Bell & LARS and Dive Basket & LARS both comply to IMCA D 023. Used for the training of offshore air divers
Divers in Offshore Air Dive Basket at PDC busy with training dives
PDC has 3 Wet Bells complying with IMCA D023 and they can be used with any of the PDC LARS Systems. In this photo one of the PDC wet Bells on board DSV Deepworx
PDC Wet Bell Launching though the schools training vessel DSV Deepworx Moonpool at sea
PDC Wet Bell De[ployed from DSV Deepworx supporting divers in training doing 50 msw air dives and 75 msw Surface Mixed Gas Dives
PDC had 7 Twin Lock Chambers for Air Diver Training. During the move from Durban to Gansbaai 5 were sold to cover the schools moving costs. This was the PDC school Twin Lock HBO chamber with walk in door. This HBO chamber was sold in 2025 to Aid with the start of saturation training in Gansbaai.
The PDC HBO treatment Chamber Control Panel a very modern panel providing 100% oxygen and heliox treatment gas mixtures for DCS tables.and advanced treatment. The PDC HBO Chamber also had ventilators inside and other advanced medical equipment.
PDC always has a based Twin Lock Chamber Base Treatment Chamber on Standby and it is is also used for the IMCA DMT Training
PDC has operated many Dive Boats over the 38 years of being in business All practical Dive Platforms This Dive Boat was Superlite 1 followed by Dive Boat Heliox and Then Superlite II
This is the PDC dive Boat Dive Support which carried a small twin lock DDC and supported Surface supply air diving at sea. Both bots Superlite & Superlite II as well as Dive Support were all sold to local Dive Companies as PDC ungraded to newer dive boats for training
DSV Deepworx is not referred to as a boat because of its size and Gross Tonnage it is referred to as a Vessel for interest after vessel comes the category ships - vessels and ships are defined by their gross tonnage. They are also Barges that are classed by size and tonnage they remain Barges. A raft is not classified as a boat or barge it is seen a a temporary floating platform with limitations.
PDC also runs the Dive Lab Kirby Morgan Helmet Technician Maintenance Courses for all the range of KM helmets, Band Mask, full face masks etc.
The Kirby Morgan Diamond Reclaim Helmet Dive Lab Course is also run at PDC as well as only once a year the the Air Dive Tech and Saturation Dive Tech Courses. These air and stauration tech course have a duration of 4 to 6 weeks
PDC IS HONOURED TO HOLD THE DIVE LAB TRAINING CERTIFICATION
Some of the PDC dive school helmets
Stripped down equipment in the PDC Dive Tech workshop and Tech Practical Classroom
PDC provides training for blending gas on gas blending panels and oxygen booster pumps
PDC 8 m RIB called Nitrox Supports SRP Diving to 30 msw it is powered by 2 x 115 HP outboards
PDC 8 m Rib Called Nitrox at sea with SRP dives to 30 msw
2 Divers ascending at sea on a shotline
PDC Student Diver doing a survey of a wreck at sea at 24 msw
A PDC Student on the long ascent journey back to the dive boat for decompression stop. all alone is also part of the training in building competant divers
PDC runs underwater welding courses and also builds its own welding equipment like this automatic underwater welding visor
PDC Mobile Dive Control Unit 3 in a double axle 5 metre long trailer , supports 4 divers, all equipment to IMCA D 040 and trailer carries a range of underwater tools for student training tasks
This was the fourth vehicle that PDC owned many years ago and it was a workhorse and go anywhere just what you would expect from a Unimog
PDC IMCA DMT Classroom in Gansbaai
Some of the DMT training aids in the PDC GAnsbaai DMT Classroom
DMT training in the classroom with PDC fibreglass closed bell training aid covering closed bell resuscitation and the new NUI closed bell heart compression device
The PDC fibreglass Closed Bell Classroom Training Aid a exact copy of the PDC operational 3 man bell. The bell had to be shortened height wise to fit it in the classroom
PDC operational 3 man Closed Bell used for closed bell training
Moonpool Bell Launch off DSV Deepworx in this photo the bell plumbing was not completed yet but we were testing the bell hooks that the bell locks into above the moonpool
The PDC Saturation Chambers are a dual HRC allowing for medical staff to enter the saturation chambers to attend to the divers as an HRF hyperbaric receiving facility is not financially viable for a training school, but the medical support has to be covered
PDC HRC being deployed at the stern of DSV Deepworx or it has the float off option
PDC HRC in water floats as volume 19 m3 and weight 8500 kg. Ready to be towed to harbour and recovered from water by PDC crane truck and then LSP connected (Gases, Communications, ECU etc.) for controlmedical assistance and saturation decompression.