Irrigation line parts?
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Old 07-17-2014, 08:34 PM   #1
quietdusk
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Irrigation line parts?


I was at home depot the other day and picked up 10 count packages of straight connectors, t connectors, and elbows. They were each less than $1.50.
They seem to fit fine in regular airline. They are a very tight fit in my CO2 tubing, but should go in fine if I heat it up a bit. I plan on using them to set up a DIY CO2 system.
Has anyone used irrigation/drip line parts for projects using airline? It seems like these are cheaper than buying connectors made specifically for airline, from the prices that I recall.
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Old 07-17-2014, 09:05 PM   #2
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Nothing wrong with it.
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Old 07-18-2014, 03:37 AM   #3
PhysicsDude55
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The only words of caution I would say is that most irrigation parts have very loose tolerances, and they're not really made to be air tight or water tight, that's why they're so cheap.

Irrigation systems aren't under pressure 24/7 like other plumbing parts, and they don't have to be water tight, because they're buried under ground and only have water in them for 20 minutes every week; if they leak a little, then they just water that area a little extra.

Whenever I've used irrigation fittings, I always have to really wrap them with a lot of teflon tape and tighten them almost to the point of breaking the threads to get them not to drip.
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Old 07-18-2014, 06:22 AM   #4
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Should be fine using them. The only time I've run into problems is using the black 1/4 inch tubing. Also using cold water makes them a little leaky. A good silicone or normal airline tubing works well with these.
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Old 07-20-2014, 06:54 PM   #5
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I have used them but as said, they don't have very tight tolerances so sometimes you pay the difference because they may not work. I wouldn't use them on a high pressure CO2 setup but it worked fine for me to split a CO2 line.

There are some other, cheaper, plastic fittings that are better. They are usually white plastic. Not quite as cheap but fit better and seem like they will hold up better over time. Very similar to airline stuff you would find at an aquarium store, just cheaper.
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Old 07-21-2014, 02:51 AM   #6
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Thanks for all the replies. Seems like the consensus is pretty much what I expected - not leak proof but can work.

Quote:
Originally Posted by talontsiawd View Post
There are some other, cheaper, plastic fittings that are better. They are usually white plastic. Not quite as cheap but fit better and seem like they will hold up better over time. Very similar to airline stuff you would find at an aquarium store, just cheaper.
talontsiawd, where do you find those?
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Old 07-21-2014, 03:13 AM   #7
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Quote:
Originally Posted by quietdusk View Post
Thanks for all the replies. Seems like the consensus is pretty much what I expected - not leak proof but can work.



talontsiawd, where do you find those?
It's been awhile, I can't remember, I used them in my DIY CO2 days to link bottles together. I am guessing I find them at OSH. I am trying to think, they were either in the compression fitting section, or where they sold various types of tubing.

They are easy to find for bigger sizes, it was hard for me to find whatever size an airline is.
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Old 11-23-2014, 02:11 PM   #8
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Digging this thread back up...

Last night I came home to ~30 gallons of water on the floor. Culprit was a irrigration grade 3/4" to 1/2" PVC 90 that I used in my filtration plumbing. I had to really tighten the fitting when I setup the tank, but its been running leak proof for about 6 months. I guess when I tightened it, I made a hairline crack, and last night it decided to not be a hairline crack anymore.



I'm personally never using irrigation fittings again for anything that I need to be watertight. I initially bought it for a spraybar type filter return in my tank, and I liked it because it was black so I didn't have to spraypaint it. I guess it would work fine on a spraybar, but when I used it to connect some filtration, it either dripped or broke apparently.
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Old 11-23-2014, 07:59 PM   #9
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Quote:
Originally Posted by PhysicsDude55 View Post
Digging this thread back up...

Last night I came home to ~30 gallons of water on the floor. Culprit was a irrigration grade 3/4" to 1/2" PVC 90 that I used in my filtration plumbing. I had to really tighten the fitting when I setup the tank, but its been running leak proof for about 6 months. I guess when I tightened it, I made a hairline crack, and last night it decided to not be a hairline crack anymore.



I'm personally never using irrigation fittings again for anything that I need to be watertight. I initially bought it for a spraybar type filter return in my tank, and I liked it because it was black so I didn't have to spraypaint it. I guess it would work fine on a spraybar, but when I used it to connect some filtration, it either dripped or broke apparently.
Now that's one place I'd never use irrigation parts. Always Sched. 40. This thread was originally about airline runs not filtration though. I'd have no qualms about the drip parts in air runs.
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Old 11-23-2014, 11:03 PM   #10
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I use irrigation fittings on various things but one downside is that they need a different touch when screwing them together. Not much more than fingertight and if that is not sealing I put some silicone on the threads and let it set before getting wet. The threads on plastic are often not quite the same as NPT in metal.
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