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Connecting 1/4' to 1/2' distribution line - hole size for barb?

Posted by trippknightly (My Page) on
Thu, Jul 29, 10 at 8:48

I want to connect a 1/4" poly distribution line to a 1/2" poly line. Hardware store sold me some of these barbed straight connectors to do it:

http://www.irrigationdirect.com/media/catalog/product/cache/1/image/5e06319eda06f020e43594a9c230972d/q/u/quarter-inch-connector-coupler-barb-x-barb-dd-c250.jpg&imgrefurl=http://www.irrigationdirect.com/dd-c250/&usg=__wMSHTBUn5QxUA1Vhj5nTh5zEOfo=&h=430&w=584&sz=17&hl=en&start=19&um=1&itbs=1&tbnid=Y9q-XGzA-wFLRM:&tbnh=99&tbnw=135&prev=/images%3Fq%3D1/4%2522%2Bbarb%2Bconnector%26um%3D1%26hl%3Den%26tbs%3Disch:1

I opted not to spring for the punch device figuring if I'm careful I can just drill a hole for the barb instead.

But, what size hole to drill?

Thanks.


Follow-Up Postings:

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RE: Connecting 1/4' to 1/2' distribution line - hole size for bar

I meant 1/4 / 1/2 inches not feet (" not ') in the subject line above.


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RE: Connecting 1/4' to 1/2' distribution line - hole size for bar

I may be wrong and I have never tried drilling the holes. But I think that a punched hole will seal better. Use a piece of scrap 1/2 inch and try different size drills.


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