Place the copper rod inside the tank so that it is perpendicular to the base of the tank.
Bend the extra 4cm (~2”) of the copper rod onto the upper surface of the tank and secure it with metal screws.
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3. Clear the hole of any drilled chaff with the use of a smooth round file.
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4. Cover the hole using any plastic cover and seal it with glue or any other epoxy product.
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