Experts Cast Doubt on Suction Entrapment Theory in Spanish Hot Tub Deaths

Patrick Tobin was 48. His wife Thomasina was 51. They were on holiday at a luxury villa perched on a hillside near Valencia, Spain, in the town of Cullera. At some point during their stay, both ended up dead in the villa's hot tub. Their two teenage sons found them there, bodies bearing cuts, positioned partially in or just outside the water's edge. By the time they were discovered, the couple may have been lying undiscovered for as long as twelve hours.

Investigators looking into the deaths settled on a theory: suction entrapment. It's a rare phenomenon, but it happens. A malfunction or blockage in a hot tub's drain system can create a powerful vacuum. That vacuum can trap a person—their body, their hair, their clothing—with enough force to hold them. The forensic evidence and autopsy results, according to investigators, pointed to this scenario: one partner became caught in the suction, and the other, trying desperately to help, exhausted themselves in the attempt and died as well.

But spa technicians who work in the industry are not persuaded. Francisco Quero, who services hot tubs in the Valencia area, told the Daily Mail that the physics simply don't work. A privately owned hot tub on residential property, he explained, runs on a motor of two or three horsepower at most—roughly the power of a large lawnmower or a pressure washer. An adult getting trapped in such a system? He found it implausible. A baby might get stuck, he said, but not a grown person. Even if the protective grill covering the suction system had been removed entirely, an adult might experience a momentary scare and walk away with some bruises. An electric shock could render someone unconscious, which might then block the suction, but the scenario as presented didn't add up to him. "It is impossible to get stuck in one of these devices and not be able to get out," he said.

Carlos Navarro, the CEO of Goccia Spa, a manufacturer, offered a similar assessment. He has toured factories worldwide and studied countless designs. In his view, it is practically impossible for this kind of entrapment to occur in a residential hot tub. The suction, he explained, comes from two holes at the bottom of the tub, and both are fitted with security nets. Perhaps those nets had deteriorated and the owner never replaced them. It's conceivable, he allowed, that one hole became blocked by something, forcing all the suction through the other opening. But even then, he doubted the resulting pressure would be sufficient to trap an adult. He also noted that modern hot tubs have safety features built in—they shut off automatically every fifteen minutes.

Navarro raised another detail: the spa bath visible in videos of the villa from 2021 did not appear to be the same unit that had been sold to the owners seven years prior. That discrepancy, unexplained, hangs over the investigation.

What emerges from these expert voices is a gap between the official theory and what the equipment itself seems capable of. The investigators concluded suction entrapment. The technicians say the power simply isn't there. They don't rule out other possibilities—a malfunction, an electrical fault, a failure of safety systems—but they are clear about what they believe did not happen. The question of what actually killed Patrick and Thomasina Tobin remains, for now, unresolved.