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boss
PostPosted: Aug 6th, '17, 05:24 
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I want to make a hole in a new HDPE tank I got for fry and fingerling trout transporting.
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I guess I am hoping these plugs which fit inside a 4" pipe will expand out another 3/8" for the kerf of the hole saw.
Anyone have experience with this issue? BTW a 4" bulkhead on Amazon is around $200 or more so I ain't going to do a big bulkhead for my hand to fit though.
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New-fish-transport-HDPE-20-gallon-tank-side.jpg [ 136.42 KiB | Viewed 3847 times ]


I have the 4" holesaw and I can fit my hand in so that I can screw the bottom piece of the the other port where'll there will be a bulkhead connector for a snorkel. The second hole will also be for where the bubbler air line enters. The 4" hole is for adding and removing the fingerlings and fry.
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dlf_perth
PostPosted: Aug 6th, '17, 12:05 
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why not go for a canoe/kayak/boat screw access hatch. They screw shut and could easily be used.
Don't seem to cost too much - eBay has them between $10 and $20.
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boss
PostPosted: Aug 6th, '17, 19:15 
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Awesome Darren I will check those out. I really appreciate this.
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boss
PostPosted: Aug 6th, '17, 19:47 
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Indeed this looks like a better solution. Thank you so much.
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