Spanish police are investigating the deaths of Patrick and Thomasina Tobin, a British couple found deceased near a hot tub at their luxury villa in Cullera, south of Valencia. The couple's two teenage children were also present at the villa but were unharmed. Initial forensic tests indicated cardiopulmonary arrest as the cause of death, but the exact circumstances remain under investigation. Foul play has been ruled out by investigators.

One theory being explored by police is 'suction entrapment,' a phenomenon where a strong vacuum from a hot tub's hydro-massage feature can trap a person's body part, hair, or clothing. Sources close to the investigation suggested that one spouse may have become trapped, and the other died attempting a rescue. Preliminary autopsy results reported by local newspaper Levante-EMV indicate that Mr. Tobin had bruises shaped like a suction vent.

However, spa technicians and the manufacturer of the hot tub have voiced skepticism about this theory. Francisco Quero, a spa technician in the Valencia area, stated that the motor power of a private hot tub is typically too low for an adult to become stuck in the suction system. He believes that while a baby might get stuck, an adult could only experience a scare and minor bruising. Quero asserted that it is "practically impossible" for an adult to get stuck and unable to escape a properly functioning hot tub.

Carlos Navarro, CEO of Goccia Spa, the company that reportedly supplied the hot tub in 2019, echoed these doubts. He stated that it is "practically impossible" for such an incident to occur with home hot tubs, which are equipped with security nets over the suction holes. Navarro suggested that if these nets were damaged or missing, and if an object covered one of the two suction holes, it might increase pressure on the other. However, he still considers it improbable that this would be enough to trap an adult. He also noted that hot tubs typically have safety features that cause them to switch off every 15 minutes.

Navarro also mentioned that his company's warranties last only two years, and any liability for issues arising from unreplaced safety nets would lie with the owners. He also claimed he had not been informed that one of his company's hot tubs was involved in the incident and suggested the spa bath pictured in earlier villa videos might not be the one installed in 2019.

The tragedy unfolded on August 24, two days after the Tobin family arrived for their two-week holiday. According to police sources, the family had a barbecue lunch, followed by a swim in the pool. Later that afternoon, the teenagers retreated to their rooms, while their parents went to the ground-floor spa area. The couple was discovered naked beside the hot tub around 7 p.m. by their son, who initially believed they were resting. The grim discovery was confirmed the following morning when the son went to wake his parents for a planned sunrise trip.

The children alerted a relative, who advised them to contact a neighbor. Emergency services were called, and paramedics pronounced Mr. and Mrs. Tobin dead at the scene. The children, who have special needs, were cared for by the Spanish Red Cross and local authorities, with psychologists providing support until extended family arrived. They are currently staying with relatives in Valencia.

Patrick Tobin was a general manager at HCLTech's London office, and Thomasina Tobin was a quantity surveyor for Turner and Townsend. The couple, who lived in Greenwich, southeast London, for eight years, are remembered by neighbors and colleagues as a popular and hard-working couple. Their family released a statement describing their passing as leaving an "immeasurable void."

The remains of Mr. and Mrs. Tobin are being held at the Institute of Legal Medicine of Valencia pending the completion of final autopsy and toxicology reports. Funeral arrangements will be made upon their repatriation to Ireland, where Mrs. Tobin's hometown is located. A case is being prepared for a judge at the civil investigations unit in Sueca to determine potential liability for negligence.

The owners of the villa, represented by the managers of Colina Del Sol, expressed their condolences and stated the resort has a long history of safe operation and high standards.