Purpose
Buddy diving is intended to enhance the safety of scuba diving by having two or three competent divers acting as safety divers for each other during a dive in conditions that are within their capabilities, and using equipment that is familiar to all team members. In principle, each diver is capable of rendering assistance to the other in any reasonably foreseeable contingency, and willing to do so within the scope of acceptable personal risk. The buddy divers are expected to take mutual responsibility for the safety of the buddy pair above and below the water, and this responsibility commences when the divers prepare for the dive. It is assumed that it is unlikely that both divers will experience the same problem at the same time, allowing the diver not in trouble to assist when the other diver has difficulties. This mutual responsibility is usually not required by legislation, is entirely voluntary unless required by terms of service of a service provider, and generally cannot be enforced. This purpose is theoretically fulfilled by the buddy assisting the diver to kit up, checking that the diver's equipment is correctly assembled and mounted, assisting the diver into the water where appropriate, checking for leaks, monitoring gas usage, providing an alternate breathing gas supply in case of an emergency, performing a rescue if the diver is unable to manage an emergency, and assisting the diver out of the water after the dive if appropriate. This system can mitigate high-risk emergencies when performed to the standards. This is not a controversial issue. This level of assistance requires the buddy to be familiar with the diver's equipment in detail, including the adjustment of harness and emergency release of weighting systems, control of inflation and dump valves, siting and attachment of secondary demand valve, knife and any other safety equipment. Recreational divers may be trained in some or all of these skills depending on their certification. The buddy system is not considered sufficient on its own. Dive planning, medical and physical fitness to dive, suitable and correctly functioning equipment, appropriate surface support, skills, experience and knowledge are all part of the diving safety system. To be fully effective, the buddy system is applied to an agreed dive plan, with effective communications, the willingness and ability to assist each other in all reasonably foreseeable circumstances associated with the dive plan, and the will to follow the dive plan.Requirements
For the buddy system to function effectively, each buddy must be sufficiently competent to provide the required service, and be present when it is needed. Several conditions must exist for the buddy system to succeed: *The divers must know and accept the dive plan. *Equipment must be compatible with the dive plan, and reasonably foreseeable contingencies. *Divers must be fit to dive in the expected conditions. *They must be competent to perform the dive plan and carry out procedures to deal with reasonably foreseeable contingencies. *The divers must know how to operate their own and their buddy's equipment, as they may have to operate it under stressful conditions. *They must be willing to accept increased personal risk in the event that they need to assist a distressed buddy, and must understand when such risk becomes unacceptable. *They must remain in the immediate vicinity of each other during the entire dive, close enough to communicate adequately and to render assistance in time. *Divers must monitor and communicate as needed to remain aware of the status of themselves and other team members, their decompression status and their life-support equipment throughout the dive, from entering the water until the last diver leaves the water. *Both divers are equally responsible for ensuring that they know where the other is, and that the other knows where they are at all times. This is the usual point at which the buddy system fails and divers are separated, making all the other conditions irrelevant. At this point they have lost the potential assistance of the buddy which is the main purpose of the system. Sometimes they find each other again. Usually nobody dies. Most recreational divers never advance to a high level of competency as might be indicated by certification and experience, and furthermore, many divers do not dive sufficiently frequently to maintain their skills. Nevertheless, they are routinely expected to provide assistance to their dive buddies in the event of an emergency, and are also routinely allocated to dive with complete strangers who may be using unfamiliar equipment. It is standard practice for many, if not most diving charter organisations to allocate buddy pairs among divers they have never assessed for competence on the basis of their certification and claimed experience. Optimal conditions are seldom encountered on open-water recreational dives.Alternatives
The three alternatives, solo diving, diving in teams of three, and diving as an individual in a large group, may have disadvantages when compared to the buddy system, especially for the novice: #Although solo diving is practiced by some recreational divers, it is only considered acceptably safe if the diver is totally self-sufficient. This usually entails a completely redundant gas supply, such as a pony bottle or an isolation manifold, and the competence to use it in an emergency. Self-rescue is not possible in some cases, such as severe cases of entrapment in ropes and nets and during medical emergencies where the diver loses consciousness or is otherwise severely impaired in their ability to respond appropriately. A considerably higher standard of competence is generally required of solo divers, even taking into account the differences due to the absence of a buddy. #Three diver teams can be effective for safety and backup, as generally, a problem that requires assistance affects only one diver, and having two divers to assist can be helpful. However, this procedure requires a considerably greater level of attention to group coherence. It is usually used by technical divers in cave and wreck penetration, where the advantages are sufficient to compensate for the added task loading, and the divers are competent to manage the additional complexity. #The system of group diving, where a group of tourists are taken on a sightseeing tour of a dive site by a dive leader and "sheepdog" assistant, who brings up the rear and herds the stragglers, is often practiced when the visibility is sufficient for it to be practicable. The divers in such groups may be entirely unfamiliar with each other. In this system, especially in large groups, poor visibility or strong currents, the weak, inexperienced, or inattentive individual divers can easily become detached from the group and lose the protection of stronger or more competent divers in the group. Communication is often difficult in these groups leading to increased risk, but they are not left with sole responsibility for a stranger of unknown competence. The "sheepdog" assistant is given the responsibility of being buddy to all the divers in the group, while not having a buddy of their own.History
Scuba diving has roots in the many small and enthusiastic snorkelling and spearfishing clubs in the decades just before and after the Second World War. After the invention of the "aqualung" by Cousteau and Gagnan, the first commercially manufactured underwater breathing apparatus became available for sale for recreational purposes in the late 1940s. As the new sport of scuba diving rapidly expanded through the 1950s, several organisations—notably theScuba procedures
Pairing of buddies
Opinions differ in how best to form buddy teams among a group of divers. One school of thought holds that buddies should always be closely matched in skills, experience, and interests so that one diver does not hold back the other in achieving an enjoyable dive. This becomes particularly true when a diver is on an especially expensive or unique diving trip or holiday. This is a suitable arrangement for purely recreational dives. The problem with this approach is that it also pairs up ''inexperience'' – which can be dangerous if a diving emergency arises (fortunately, this is not statistically very often). The alternative is to buddy-up a more experienced diver with a less experienced buddy to counter this "experience gap". This also helps to advance diving skills by having one buddy essentially act as a tutor. TheEquipment use and tasks within the buddy team
The buddy system is expected to provide a level of redundancy within the pair of divers, as a safety backup in case of any equipment failure. Within the overall buddy pair almost all equipment can be seen as part of a combined "redundant system": two tanks, two depth gauges/Provision of emergency breathing gas
An important aspect of the buddy function is providing breathing gas in an out of air (OOA) emergency. This can happen in the event of a regulator failure or using up most of the breathing gas while inattentive, distracted, or dealing with an urgent problem. Part of an effective buddy system is preventing and avoiding out of air emergencies by effective gas management, and effectively managing emergencies when they do occur in spite of diligent monitoring. In the early years of scuba, each diver carried a single second-stage regulator, and in the case of an out of air emergency, the buddy pair made an emergency ascent to the surface while the two divers took turns buddy breathing from the mouthpiece of remaining functional scuba set. Though this system worked effectively enough in a swimming pool or in open water practice sessions, and sometimes worked for skilled and disciplined divers in actual emergencies, in some cases stress and physical difficulties made it fail. To simplify the procedure for air sharing, the recreational diving industry moved to a configuration that provided each diver an additional second-stage regulator, as a backup to the primary. The backup is known variously as the ''octopus stage'', ''backup'', ''secondary'', or (obsolescent) ''safe second''. The term ''octopus'' came about because several regulator and other hoses hanging from the first stage made the unit look a bit like an octopus. Two general systems have evolved for carrying and deploying the backup demand valve—one more prevalent in recreational diving and the other commonly found in technical diving (although some crossover exists). In both systems, each diver carries two demand valves. They may be attached to the first-stage regulator of a single tank or to two first stage regulators of twin cylinders. The primary regulator is for normal breathing during the dive, and the secondary regulator ("octopus") is a backup for oneself or an out-of-air buddy. Two basic procedures are in common use: Donating the primary and donating the octopus.Donating the primary
Donating the octopus
The octopus is usually clearly marked, the convention is a yellow hose and yellow second stage though a luminescent green is sometimes favoured. Many dive equipment manufacturers provide secondary regulators marked exactly to this standard and "tune" them specifically to the role of octopus. The octopus second stage is usually stowed in an easily located, accessible position and is easily detachable from the device that holds it. Most recreational agencies recommend or specify that this position be in the "Golden Triangle" drawn between a divers chin and nipples. The octopus hose is usually made long enough (1.2 metres (4 ft)) so that the divers are not inconveniently crowded against one another when the octopus regulator is in use. The procedure to provide the octopus is that the donor diver hands over the octopus—but if a buddy does not notice the buddy’s distress, the out-of-air diver has been taught to take the stowed octopus. An advantage with this method is that donor handover is consistent in both octopus handover and for handover of any independent bailout device such as a removable pony bottle. As part of pre-dive checks, the team should review the procedure for handing-over or accessing the octopus in out-of-air emergency. In recreational diving, if good gas management practice has been followed, either buddy should have sufficient air for both to safely ascend to the surface, even if the emergency occurs at the end of the dive. This may not be the case where an unplanned decompression obligation exists.Standardisation of configurations as a safety advantage
It is helpful if divers wear their equipment in a way that follows standardised conventions so that buddy partners know where to access that equipment if called on to assist their buddy. As there are several conventions, and divers who do not follow locally popular conventions, it is important for divers planning to dive as buddies to familiarise themselves with the configuration used by the other in the pre-dive checks.Communication between buddies
Diving takes place in what Cousteau called "Hand signals
Underwater slates
Underwater slates are useful when there is more detailed information to communicate or remember. A large variety of designs are available. Some clip to the divers BCD, some fit into pockets, some integrated with other units such as the compass and some attach to the wrist or forearm with bungee straps. The basic parts comprise just an underwater pencil attached to a plastic board by a short tether, and a way to attach these to a convenient point on the diver's equipment. Slates are particularly useful for information that must be written down prior to a dive and referenced during the dive: elements of the dive plan (depths, durations, decompression schedule) or a drawn map of the dive area.Buddy lines
A buddy line is a line or strap physically tethering two scuba divers together underwater to avoid separation in low visibility conditions. A buddy line is commonly a short length of about two meters with a floating element between divers to reduce risk of snagging on the bottom. A buddy line is a means of communication. It doesn't need to be particularly strong or secure, but should not pull off under moderate loads. Divers may communicate by rope signals, but more usually just use the line to attract attention before moving closer and communicating by hand signals. The disadvantage of a buddy line is an increased risk of snagging and entanglement. Divers may need to disconnect the line quickly at either end in an emergency, which is done via a quick release mechanism or by cutting the line, both of which require at least one free hand. A velcro strap requires no tools for release and can be released under tension.Other communication methods
In more advanced diving (particularly penetration diving) divers often use additional underwater communication methods, including signalling with lights, pulls along connecting lines, or tapping on tanks. Ultrasonic signalling devices that attract the buddy's attention by vibration have been marketed and may have some limited utility.Buddy separation procedure
The generally accepted procedure in the case of buddy separation (or lost buddy), in a recreational open water dive is to search for the buddy for one minute, and if not found in this time, to start the ascent, following appropriate procedures based on any decompression obligations. This rule is taught fairly consistently by recreational diver training agencies, but it is not compulsory and variations in this procedure may be agreed upon by the divers during dive planning. Compliance is variable, as ascent in most cases implies termination of the dive, which may not be welcome to either party. Loss of buddy contact is commonly reported in diving fatalities, but in many cases it is not clear whether loss of contact was a cause or an effect of the fatal incident. In overhead diving, the team member separated from the guide line is considered lost, as the guide line is the means of finding the way out, and the procedure is different.Freediving procedures
Responsibility
With buddy diving, each of the divers is presumed to have a responsibility to the other. The actual legal responsibilities for recreational buddies may vary between jurisdictions and are seldom if ever clear. The buddies are expected to monitor each other, to stay close enough together to help in an emergency, to behave safely and to follow the plan agreed by the group before the dive. When the system fails, it is generally because one of the divers does not fulfill his or her responsibilities as a buddy. If one of the divers is incapable of providing the expected assistance the buddy system has already failed. With professional divers, buddy responsibility may vary and will be specified in the code of practice, operations manual, and dive plan. Each diver in this case must be capable of fulfilling their responsibilities according to the dive plan. The responsibilities of each buddy during a recreational dive are generally accepted to be: * Forming an agreed dive plan (dive objective, course to follow, depth limits and distance from exit point), agreeing on air pressure at which the dive is terminated and ascent started, who leads and who follows, and reviewing possible emergency measures * Helping a buddy get in and out of their equipment, particularly in assisting donning of heavier items of diving equipment and adjusting hard to reach items * Checking the buddy’s equipment setup before the dive to assure that it is complete, in proper working order and configuration prior to the dive * Keeping track of the other buddy and staying together for the entire dive – maintaining a separation that can be closed up within only a couple of seconds * Maintaining active communication throughout the dive by hand signals and regular monitoring of each other's gauges—and checking that the buddy is okay with the conditions and progress of the dive via such hand signals * Managing dive duration and profile by following the most limiting conditions indicated by the gauges and dive computers * If separation does occur, searching to reestablish contact with the buddy for the agreed period, commonly one minute, and if that fails safely returning to the surface to re-establish contact. This may effectively terminate the dive. Further action if the buddy does not surface within a similar time-span depends on the circumstances, but may involve raising the alarm for a lost diver and initiating a search. * In the case of a dive emergency, assisting a buddy to extricate from the danger—particularly in the case of entanglement, out of air situations, or rescue assistance for an immobilized or unresponsive buddy *The primary responsibility of a diver is for their own safety. Circumstances may occur in which adherence to the buddy system puts a diver at unacceptable risk to their life or health, at which point the buddy system ceases to be advantageous and should be abandoned. An example tested by law occurred when a diver with decompression obligations did not follow their buddy to the surface during an emergency ascent during which the ascending diver died. The appeal court found that the buddy had acted as a ''Disadvantages of the buddy system
With the increased popularity of solo diving as a possible alternative to the buddy system, there has been debate as to what really constitutes safe diving practise and how divers can best control the risks associated with their sport. Statistically speaking, scuba is a reasonably safe activity, with incidents of injury below several other "risk" sports such as football, horse riding or even tennis. Yet unlike these other sports, scuba divers are in a hostile environment for which humans are not adapted, breathing from a portable and limited capacity life support system. Under these conditions, fatality is always a possible outcome, as even simple equipment or procedural problems can be mishandled. In dealing with this reality a number of major concerns about potentially inherent flaws or negative impacts that can exist within the buddy system have been identified. Few, if any, of these problems, are defects in the concept of the buddy system, they are problems with the application of the system. There are circumstances in which the buddy system must be abandoned as unacceptably risky to the buddy. The buddy is not expected or legally obliged to unduly put themself at risk of death or serious injury in the attempt to rescue a diver in distress. The level of risk acceptable has been determined in some legislations to be that acceptable to the ''Liability of the diving buddy
Liability issues strongly affect the structure of the diving industry, its organisation and even the implementation of recommended diving practices – and this is very much the case with buddy diving. Diving is a risky sport, where serious accidents occasionally occur. In an increasingly litigious world, accidents often trigger a search for "blame", and aspersions of blame often trigger ensuing litigation. It is a natural thing for those who may face the potential risks of litigation to take measures to mitigate these risks. Diving certification agencies must necessarily insure themselves against liability risks and must act to minimise the cost of this insurance for both themselves and their operatives. The buddy system, beneficial as it can be in enhancing diver safety, has the legal effect of creating an involved intermediary person between the certifying agency and any injured party, an intermediary who could be easily identified as not having provided "duty of care" if an accident occurs. This may afford a legal cushion for the agency, or trainer, or boat - but it is not exactly good news for someone acting in the role of a buddy. The more skilled the buddy partner, the more these duties of care may be assumed to increase, often without legal justification. Liability waivers are signed whenever a diver interacts with an operative of the diving industry, e.g. the training agent or dive boat. No such waiver is commonplace for the buddy in a buddy team. As case law develops, more precedents become established for situations where buddy action may make them particularly liable. It is recommended now that buddy divers carry insurance that provides coverage of themselves against legal actions by buddies, particularly if diving takes place in those countries where a culture of litigation may exist. This is particularly necessary for scuba diving professionals who earn a living in the recreational diving industry, when they "buddy-up". More experienced or more qualified divers may also unreasonably be expected to bear a higher duty of care for their less qualified buddies, and therefore a serious burden can be placed on a vacationing diver asked to buddy up with a stranger, especially in litigious jurisdictions, and specially if either diver is not as competent as their certification and experience may suggest.Training, competence and certification
Buddy diving skills appropriate to each level of certification are included in the training and assessment for that certification, building on the skills required for the relevant prerequisite certification, which should be already in place.See also
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{{Underwater diving, divsaf Underwater diving procedures Underwater diving safety