Portable hot tubs and in-ground fiberglass spas utilize dozens of pressurized water and air hydrotherapy jets connected by flexible PVC tubing. Most modern hot tubs are encased in dense, closed-cell expanding polyurethane spray foam for thermal insulation.
The Nightmare of Leaks in Foam Insulation
When a jet gasket dry-rots or a flexible hose cracks, escaping water saturates the dense foam. The water often travels along cabinet framing, dripping out on the opposite side of the tub from where the actual leak exists.
Electronic Tracing and Surgical Foam Removal
Using thermal moisture mapping and nitrogen pressure testing, our technicians isolate the specific jet manifold before cutting into the foam insulation, avoiding destructive guesswork.