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Re: automatic watering

Square Foot Gardening List - http://www.flinet.com/~gallus/sqft.html

I use a 200 mesh filter.  The 13 gpm version runs about $25.00 and the 30
gpm about $60.00.  Might be "cheapie" to some people but not to me!  But it
is only a one-time expense.  The clogging problem occurs when the water
evaporates leaving the mineral deposits, which were dissolved in the water,
to accumulate.  It is not due to particulate matter in the water.  Our
irrigation water comes from runoff from the Salt River drainages and the
Colorado River Plateau.  Haven't measured the specific gravity but suspect
it is well above 1.00.  I suspect oldjohn's water is also runoff from the
Eastern Sierra and Owens Valley, lots of alkaline minerals like ours.  One
way to reduce these deposit is to keep emitters covered with mulch.  Or to
use turbulent flow pressure compensating emitters like John recommends.  But
if your water is pretty pure, all this may not be relevant.

The pressure compensating emitters usually up to 70 psi and may not need a
pressure regulator but may cause a garden hose to burst if left in the
summer sun under this high pressure.  -Olin


-----Original Message-----
From: Peggy Enes <peggy@unicom.net>
To: sqft list <sqft@listbot.com>
Date: Saturday, October 31, 1998 2:12 PM
Subject: Re: automatic watering


>Square Foot Gardening List - http://www.flinet.com/~gallus/sqft.html
>
>John,
>
>Both you and Olin have mentioned clogging and I have read/heard
>comments from others that they have had similar problems. I'm curious
>as to whether you were using one of the cheapie filters when you had
>the clogging problem?
>
>Our city water tends to do calcium deposits but I know there are areas
>where the problems are much worse. The line I have baskets, containers,
>etc. on is used 7 months out of the year and in the heat of summer gets
>a twice-daily workout. I don't have laser tubing on that line but none
>of the other assorted emitters have clogged in 3 years of use. I did,
>however, just start using the in-line emitters late this season.
>
>At 11:11 AM -0500 10/31/98, oldjohn@juno.com (John Orwick) wrote:
>
>> On Fri, 30 Oct 1998 12:47:06 -0700 "Olin" <millero@worldnet.att.net>
>> writes:
>> > The drip irrigation starterkits never seem to have the pieces I need in
>> the
>> > kits.  I also use some in-line emitter tubing in the landscape.
>>
>> I have been using drip for over 5 years. I found that the starter kits
>> contain only in-line drippers. The alkali in my water soon plugs them and
>> renders them useless. The same thing occurred with weeper hose that I
>> tried. I have had very good success with pressure-compensating drippers.
>
>
>---
>Peggy Enes (peggy@unicom.net)   Zone 5/6    NE KS     AHS Heat Zone 7
>
>
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