Return to the Irrigation Forum | Post a Follow-Up

 o
needs ideas to finely control drip rate

Posted by glhein 9 (My Page) on
Thu, May 22, 14 at 16:11

I have a situation where I need to restrict the drip rate of a subsection of my drip irrigation system. Unfortunately, I don't have the option to place the subsection on a separate watering schedule. I have a 5/8" mainline with four 1/4" lines w/ emitters that makes up the subsection.

I need to drop the drip to about 20% of the current rate. I'm at a loss for a good way to do this. I'm thinking a fine needle control valve spliced into the 5/8" line would do the trick, but I don't know exactly buy at the hardware store.

Anybody got some ideas?

Thanks


Follow-Up Postings:

 o
RE: needs ideas to finely control drip rate

Change the sizes of the emitters so the same time delivers less water.

5GPH for the main and 1GPH for the 20% (0r 10 and 2 ... depends on how much water you need)

It's the common way to deal with a mix of plants on a single line -


 o
RE: needs ideas to finely control drip rate

I already have 1/2 GPH emitters on the subsection. I'm not aware of emitters that run at 1/8 GPH or slower.


 o
RE: needs ideas to finely control drip rate

Emitters commonly come in 2, 1, and .5 gph sizes. There may be other flow rates available, check a cataloge (rainbird is probably your best bet) if you can't go smaller on your 'subsection', up the main part.


 o
RE: needs ideas to finely control drip rate

Dripworks sales 2 types of 1 quart per hour drippers that I use for small pots. one is pressure compensating the other is not.

Here is a link that might be useful: quart dripper


 o
RE: needs ideas to finely control drip rate

Cut into the drip line, put a small 1/2 ballvalve.

How long of a run of pipe do you have?


 o
RE: needs ideas to finely control drip rate

The main pipe for the subsection is about 15 feet. I like the idea of working in a ball valve. I'm also going to look for the Dripworks 1 qt/hr drippers.


 o
RE: needs ideas to finely control drip rate

Have you installed a filter/ reducer in this zone?


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Irrigation Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here