Yes, it can. Due to our intelligent design, the pump and heater are built into the wall of our CleverSpas® so there is no need to remove anything when it is raining. We do advise that your CleverSpa® should only be plugged into an outdoor mains electrical outlet that can be fully closed and sealed against any weather, including rain, snow, sleet etc. Any water ingress in the RCD Plug or the socket that it is plugged into could lead to the failure of the RCD plug and or the socket it is plugged into.
If the RCD plug or socket show any signs of water ingress they should not be used. Evidence of water ingress will result in burning or melting. If this happens the socket should be immediately switched off and the plug or socket should be checked by a qualified person and be replaced if necessary.