Hello Ive been wiring swimming pools,no problem, each pool has a small garden shed near it which i put a garage rcd dis board and and earth stake all circuits to the pool are low voltage so its fine. But ive been asked to do some spa baths with only require a 16amp commando on a rcd adjacent to the spa for it to plug into. The problem is ive been told is that when someone gets out of the bath they recieve a small shock off the floor when wet. Ive have been taking the earth from the house for these commandos, do you think the best bet is to bang a stake in for a single commando or? Anyone get any suggestions.