Re: pressureless drip irrigation?

can you do overhead or only drip?


At 3:49 PM +0100 7/26/03, Anthony Lyman-Dixon wrote:

----- Original Message -----
From: "Diane Whitehead" <voltaire@islandnet.com>
To: <medit-plants@ucdavis.edu>
Sent: Saturday, July 26, 2003 2:06 AM
Subject: pressureless drip irrigation?



 I rent a slope on which I grow plants from my hybridization of
 several kinds of plants. Watering is a big effort, except for winter
 when it rains.> I've searched on Google for information on low pressure

irrigation,

 but all I get is information about how to reduce my water pressure so
 I don't blow out the drippers.  I need to know how to operate with
 what is essentially NO pressure.

Diane Whitehead  Victoria, British Columbia, Canada

 maritime zone 8
 cool mediterranean climate (dry summer, rainy winter - 68 cm annually)
 sandy soil




 >



Your problem is that there will inevitably be higher pressure at the bottom
of the slope and somehow you are going to have to find the means of
equalising the top and the bottom which implies defying gravity. We have
tried at least four systems here which claim to be able to do this, but
really it is about as realistic as trying to create a perpetual motion
machine. A further problem we have with very alkaline water is that the
dripper holes get encrusted with calcium deposits and cease functioning
within a year.Flush them through with vinegar said the helpful suppliers,
which is a bit impractical when you have hundreds of feet of the stuff.. We
deal with a company called Access Irrigation of Rugby  who constantly come
up with new ideas, usually based on Israeli experience, some of which are
more successful than others, but at least they try and be helpful. Sorry, I
don't know their web address, but your search engine should be able to find
them.
Good luck
Anthony (who has just spent the day standing in Glastonbury market and whose
thoughts currently revolve more around the problems of drying out than
getting any wetter)--
 > >




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Jaen Treesinger
Bengals from the RainForest

.......amazingly smart, incredibly fast and just gorgeous!

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