It’s possible that it does not have a switch. I can’t confirm for your model but my 2900 did not have a switch so I was pulling the fuse in the engine compartment every weekend for the first year. By the second season, I had installed a switch! It’s not just for long periods either. There will be at least one time in the middle of the night that the pump cycles due to a hair or small piece of TP … you will want that switch so you can be go back to sleep and deal with it in the morning

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