I installed the Tornado Flush on the tank sensor side. Had no problems flushing the tanks. I did test the Tornado Flush by attaching it to a garden hose to check the spray pattern prior to installation. I wasn't satisfied, so I drilled the holes a bit larger.
I did the same with the Grey and Galley holding tank flush, but used the Quickie Flush. They worked just as well cleaning the tanks.
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