We at Hot Tub Solutions can bring life back to older Hot Tubs, This we we retro fitted a new Balboa control system to Coast Spa in Glasgow, on the older Coast Spas they operate with Gecko systems and depending on the model the will have either an M class System or An S class system both these systems are old technology with pressure switches compared to the newer style systems with inline sensors so when the system fails it makes more sense to update the complete system with a compatible Balboa system in this case a Balboa GS510SZ, Hot Tub Solution are Edinburgh based however we can Retro fit Hot Tubs throughout Scotland.