Thanks for starting this thread. It was a good sanity check for me... I went ahead and hole sawed the bottom of the reservoir and installed the original sensor. It works great but we had to apply a little calk to keep it from leaking (the grommet was weakened from removal). The original sensor and grommet were removed with as much care as possible. We sawed the old reservoir in half to reduce the likelihood of damaging the sensor and grommet during removal.
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