Is 1/2" pvc too small to plumb mixing/filling station?

[Jhuneke]

I have these very curved barrels I'm planning on tapping w a uniseal. In order to get it low enough and on a somewhat flattish part ..I'm thinking of going 1/2 " instead of one inch. To do bigger would mean going up barrel almost 25% :/
Yes.. I could go 3/4 , but honestly I ordered a bunch of 1" and 1/2 uniseals.. Not to mention the hole saws for only those sizes. Got no 3/4" and sick of all these holdups in this build.
Would 1/2" take like an eternity to fill 5g jugs and to do 25g wc directly to tank about 35ft away by hose?
Will I have issue later when I plumb the barrels together and use a pump to transport to tank.. Like pump fitting , valves etc?

Am sitting here w drill in hand , and cursing the DIY gods.. Any input?

[Jhuneke]

I feel like putting the 1" uniseal on the curved bottom ( 4" from bottom) will be too big to get a good seal on the curve. Didn't think this barrel through since now I see that any thing I plumb on bottom is going to come out at a downward angle , and I'm worried about the weight of pvc and turning a ball valve etc. will screw up the uniseal bond ..






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[Jhuneke]

I either hafta drill 1" drain at like 1/4 from bottom , or 1/2" drain coming out of curved bottom at an angle :/
I'd drill high with 1" but I hate not being able to empty it fully without a pump ..


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[Squid]

1/2" PVC About 7 gallons per minute

[Jhuneke]

Thanks ..That's gravity fed right? Not too bad..


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[Jhuneke]

I just saw this graph..
So for only gravity .. I'm only at 3.3g/ min
Probably less considering its coming out through a 90* pipe .. Ugh I bet that cuts it by a lot!


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[Kris]

Maybe tap near the top and use a pipe to pull (siphon) from the bottom? There is going to be a 3.5' of head pressure on those uniseals and I would expect them to leak/fail at some point?!

Double that fail thought because the bottom is at the angle. (Full Disclosure, I have not used uni-seals, only bulkhead fittings for through-holes.) Free = $0.02.

Anybody else use uniseals for a pressure application outside of a sump?