I'm in the process of replacing my under-sink water filtration system. The old system used 1/4 OD plastic tubing. The new system uses 3/4" OD tubing.
So I need to adapt one size to the other. Normally I would just run to the hardware store and get the right adapter, but they all just closed. So in hopes that a bored plumber is reading DIYSX tonight, I'm posting my question here.
I noted that the 3/4" tubing was labeled on the tubing itself as having 1/4" ID. So I got the bright (?) idea that I could insert the 1/4" tubing into the 3/4" tubing and get a pretty tight fight. I did so and got both sides inserted about 2" in. I pressurized the line and found no immediate leaks.
I'm curious if this could be used as a solution, or is at best a risky short-term solution. Perhaps with the right food-safe sealant, this could work?
I know I can just wait until the HW store opens tomorrow, but this info might be useful in a pinch.