I just went online and found the parts I used to post some pictures. I know I only paid 30 bucks for the rubber gas line and handle, but that was about 4 years ago. I did buy 10' long hose, but ended up cutting it in half down to 5'. The plastic chemical resistant fittings I bought at tractor supply. I tried taking a picture down in the barrel where I mounted the bulkhead fitting. This particular barrel had a flat spot down there with a raised ridge inside it that happened to allow me to drill my hole so that one of the flat spots on the bulkhead fitting nut butted up against it. That held the nut in place allowing me to tighten it from just the outside. Threaded the elbow into that and then claimed the gas hose to it. Super simple. If you're fill cap on the boat sits lower than the barrel, gravity feed is all you need. Notice I did make a small wooden platform for the barrel to sit on so the elbow fitting would clear the ground. I just screwed it to the plate on the metal dolly. The barrel is held on the dolly with a ratchet strap.
If you need to add some pressure to pump uphill, then drill a small hole in one of the bung caps and pop an air valve in the hole. You can get the air valves in packs of 2 or 3 at Walmart for a couple of bucks. The gas will eventually take its toll on those, so plan to replace at least once a year or so when they get soft and leak air.
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2021 Moomba Makai
Black Cherry Metal Flake & Fire Red
Nibral OJ 15.5x15 Altitude/Wake prop w/1.76 trans v-drive
Wet Sounds bow speakers & 10's on the Tower & ported sub