How do I prepare pH electrodes for wet storage (storage within the storage solution)? The first step is to remove the electrode from the amplifier box. This will enable the closer packing of the electrodes so that they will take up less space during storage. Next, refill the soaker bottles with the pH electrode storage solution. Finally, place the pH electrodes into a container that will keep the electrodes vertical to make sure that the glass bulbs remain immersed in the solution within the soaker bottle.