i wish i had gauges, but i am not cutting more holes in my dash, i was running a manual switchover valve, but that was a pain in the ass, run out of gas, run to the back of the boat switch tanks, restart, all before getting swamped, i will be installing an electric one this time, my old boats used to have an old chevy truck electric valve, not sure if coast guard approved or not (doubt it) but was inexpensive and never had a problem with it.