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recently i wired an outside plug for a portable spa with an Rcd on the switchboard. The spa has been tripping the Rcd since the pump was replaced recently, the company that fitted the pump were called in to check it out and he removed the RCD and hardwired the spa. I have looked through regs wirt regards to spas etc , This can't be safe under reg . anyone with better regs knowledge that can point me in the right direction here, I believe that a spa should be Rcd protected regardless of it being pluged in or permantantly connected.