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Drill hole in ss tank

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Had the same issue. My thought was to cut a disc out of 5mm stainless plate, drill and tap the centre and then affix to the tank with pop rivets with either a rubber gasket or mastic in between. Didn't do it though so don't know how it would pan out in practice.

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A length of dowel never lies, corrodes or stops working for some mysterious reason.


That what I had in my last boat


Currently have fancy electronic gauges and at best, they are a rough indication as tanks are never square and level so gauge doesn’t move in true relation to usage. I work on 3/4 being half, 1/2 being quarter and 1/4 being time to refuel

Possible a bit harsh but in all reality I trusted dipping the tank more.

Edited by Jon
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