Coast Spas
Acrylic Shell Damage / Osmotic Blistering
Spa shell has visible cracks or blisters (bubbles) in the acrylic surface.
Advertisements
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Advertisements
Possible Causes
Aging of Coast Spas acrylic shell, Chemical imbalance over time, Manufacturing stress points, Freeze damage
How to Fix / Troubleshooting
Safety first: Drain the spa before attempting any shell repair.
- Assess severity: Hairline surface cracks may be cosmetic; deep cracks that leak require structural repair.
- Stop leaks: For small leaking cracks, use a two-part underwater epoxy as a temporary fix.
- Professional repair: For structural cracks or large blisters, contact a spa repair specialist experienced with acrylic shell repairs.
- Prevent recurrence: Maintain proper water chemistry and avoid draining the spa in direct hot sun.
Advertisements
Repair Difficulty
Professional Required
5/5
Advertisements