In the first instance DO NOT attach the TankBlanket across the metal straps! The TankBlanket is not designed for direct installation against an electrically conductive surface.
To install correctly, loosen/drop the metal straps away from the tank (make sure the tank is empty), install the heater pad following our guidelines, and then retighten the metal straps over the top of the TankBlanket heater pad.
NOTE 1: When positioning the TankBlanket, make sure that the sensor, indicated by the raised lump (approx 6 x 19 mm) where the power leads enter the pad, is NOT going to be trapped under a metal strap.
NOTE 2: It is also strongly recommended you place a thick rubber strip between the strap and tankblanket to protect against friction and possible cutting through of the TankBlanket by the metal straps.