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The array need to be wrapped to prevent unwanted current between the tips of the
plates. Our target is keep the current between the perpendicular surfaces and prevent
It is possible to wrap the array with any insulated material as long it will stay
in place in water. In my opinion it is best to wrap it using duct tape, but using
shrink-wrap is also good idea.
When using duct tape make sure the PVC surface is clean and dry. As you wrap, keep
tension on the tape so that it is pulled into the plates (see top view in drawing).
This is important step because the leakage current is causing the water to warm up
and we want to prevent unnecessary energy losses like this.
Where to get
Plates array - Assembly
Make it yourself
Duct tape / shrink wrap