Go through arch into garden – opposite Greehouse. Then go left through blue painted door to Pool Garden
Go to the end of the Pool Room Building and open door into Pool Pump Room
Directly on your right is a small coloured box at head height – on this box are 2 black switches:-
They are labelled Copper On and Copper Off.
On Tuesday change switch to Copper ON
On Friday Change Switch to Copper OFF
Then Close door firmly and close pool Garden Door Firmly.