Ive got the plugs shown in the image. Trying to connect (2) 55 gallon rain barrels. Ive tried kits like this ( https://www.ebay.com/itm/127756959107 ) but they're garbage and leak - the threads / plastic are too flimsy and jump when trying to screw together.Any idea what sort of pipe is used in the image with the question mark? The plugs are threaded on the inside but it appears like they just rammed a pvc pipe between the 2 barrels. Not sure how they sealed it together.I appreciate any advice.
>>2987743put a barbed king nipple on each and a piece of rubber hose between instead of a regular pipe
>>2987743looks like PVC mate
>>2987743The interior and exterior of the barrels are curved surfaces and your bulkheads are flat. You could try several things like RTV silicone on both sides of the hole to create a gasket, Flex Seal, or square up the surfaces with epoxy putty and seal it after it's cured.
Use PTFE tape on the threads for a better seal, and perhaps a thick EPDM gasket at the base to seal against the uneven surfaces, also why is the pipe so low? You have tons of head pressure on a shitty Chinese fitting that's never going to work
>>2987743Put a small submersible pump (with float switch) into one barrel and run 1/2" irrigation tubing out of the top of the barrel and into the top of the auxiliary barrel.
They make what you’re looking for, it’s usually sold alongside those ceramic bases made for water jugs. It’s a threaded fitting that takes a gasket onto it then sealed with a plastic nut. Look up water cooler spigot hardware or similar. Might not be heavy duty enough for your needs
>>2987743That looks like a solid PVC pipe or nipple, but do like the other anon said and put a barb fitting and some rubber hose, that way you have some flexibility between the two.
Usually you don't put a hard line between two tanks, because there hard to align and if either move even a little bit it will break the seal and leak forever no matter how many times you patch it. Use a flexible hose and two ring clamps, will still last years but just won't leak. If you're using these fittings, bear in mind plastic threads are very easy to over torque and break, and if they're cheap and the fit isn't good this is a far more serious issue. The solution is using the correct tool for the job, which would be a socket driver. It's a large socket, yes. But a wrench can easily apply too much shear force. Kevlar tape is generally recommended, use only one layer, roll it in the opposite direction to the threading. It's to reduce friction while you torque it not too fill gaps in the threads, the more you add, the worse it will fit.
