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The Drip Store Forum Forum Index -> Home & Garden -> Adjustable Dripper to PC dripper
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Posted: Fri Jun 01, 2007 2:14 pm Adjustable Dripper to PC dripper

thickerson   Joined: 01 Jun 2007 Posts: 2 I have a square foot garden 4 x 12, and I installed 48 0-10 GPH adjustable drippers one in each square (purchased from you), but there is not enough pressure for me to be able to turn them up high enough to get the big spray pattern I wanted, and when I adjust one the others change. I was thinking about going to a pc dripper and placing four 1/2 GPH drippers in the squares with multiple plants, and one 1gph dripper in the squares with single plants. Is this a good idea? I don't really like the drip tape because the spacing of the square foot garden varies from square to square.

Posted: Mon Jun 04, 2007 8:31 am

david   Joined: 15 Mar 2004 Posts: 268 In reply to your e-mail regarding Adjustable dripper: The problem that you have is associated with the total flow rate. The total flow arte on ½” drip tubing is 220 GPH. If you have 48 adjustable drippers with each has a flow rate of up to 10 GPH, then by adjusting the flow rate on the unit, your flow can be exceeding the total flow recommended for the system. The best solution is to use PC drippers with .5 or 1 GPH. By using a PC dripper you will have a total control on flow rate, you also can expand the wetted area around the plant by adding more drippers around the plant with a minimum spacing between the drippers of 10-12”. With this option using 1 GPH you can have up to 220 drippers with 1 GPH or 440 drippers with .5 GPH. You also can run the system for a very long run with even flow rate from each dripper along the line Thank you for your inquiry, The Drip Store Staff

Posted: Mon Jun 04, 2007 9:09 am

thickerson   Joined: 01 Jun 2007 Posts: 2 So there is a minum spacing of 12" between drippers. What happens if I use 6"? Is there any particular part # of dripper you recomend?

Posted: Tue Jun 05, 2007 12:36 pm

david   Joined: 15 Mar 2004 Posts: 268 If you use closer spacing then 10” you waste water Thank you for your inquiry, The Drip Store Staff