Here's a pic of my polypropylene tank

[Koman]

ive recently been building some tanks after being inspired by this thread. since mcmaster can only do a min order of 10ft for the 5/8 polypropylene, i still have enough material for about 80 more tanks. im still waiting on some thumb screws, but this is what ive got so far. ill probably give some to my coworkers who im trying to get to stop smoking analogs.
View attachment 177501

Looks like quite a contraption you have there!

 

[soul05]

Thanks! I really wish that mcmaster carr sold something shorter than 10 ft....i have so much tubing left...

 

[Rapture]

Did anyone find similar caps to the j-tank yet? I wanna order some of this polyprophelene stuff and have some j-tank style caps. Ive looked all over google and no caps with any type of o-ring grooves.

 

[Rapture]

I got my polypro in today and already have most of my tanks with new tubes..

What tubing did you order. Will it work with j-tank caps?

 

[Rapture]

The grommets I used were part #1061T83
The tubing was part #5392K17

I put a socket (from a socket wrench set) inside the tubing and just used a regular plumbing pipe cutter to cut lengths off. It gives a pretty nice cut edge, I sanded the first one, and it didn't really look better enough to be worth it. I just cut the rest and used them.

Thank you. What about o-rings, could you post a part number for those too. im stupid when it comes to measuring. do u know if this is the same size tubing that j-tanks uses with there caps?

 

[Rapture]

For those of you who are wondering about the polypropylene tubing I've been using to replace my polycarbonate tubing on my tanks, I thought I'd post a pic for you.

This one uses a couple of liquinator caps. This tubing will fit on all of the popular tanks that use a 5/8" x 3/4" od tubing.

looks great. good job. have you tried this tubing on the j-tank caps? Do you think it would work on the j-tank caps?