Slightly related: JV needed and new fuel sender and the old one was messing about. All tests suggested sender so, one was ordered. Whilst on this job with tank pulled forward, it was planned to put a small hatch in the hatch! The main hatch has 30/40 bolts and is for getting in to clean etc, what was planned was an easy access option that doesn't ruin the gasket, take an hour or mean the tank has to be empty enough to pull forward. So a had SureWeld behind Castlepoint cut the hole, drill the bolt holes and they welded nuts on the back to make them captive. Great job, great price. Also, large enough to eyeball the tank with a torch and get your hand in if you so desire. Tested out today, and seems to help catch bass somehow! R