Slopes And Mounds - Netafim TECHLINE AS Design Manual

T E C H L I N E A S ™ D E S I G N G U I D E

SLOPES AND MOUNDS:

Techline AS™ has a self regulating dripper with an anti-siphon device built into it which will
ensure that it will perform reliably on sites with slopes or mounds. When the drip systems shuts
down however remaining water inside Techline AS™ will drain out which can cause an
accumulation of water at the lower reaches of the drip system. This can be further compounded
by the natural movement of water down the slope.
When designing a Techline AS™ system for sloping ground or mounds ensure that:

Techline AS™ is installed perpendicular to (across) slopes. This helps eliminate water
drainage at the lower ends of the drip laterals.

On large slopes split the slope into two zones; run the top 2/3 on one zone and run the
bottom 1/3 on a separate zone. This will allow greater irrigation control and will allow
two areas with different water requirements to operate more efficiently.

Install Dripperline Non Leakage (DNL) device which will hold back water inside the
dripperline laterals and manifolds.
NOTE: Netafim UniRam CNL™ is a commercial dripperline that has a "non-leakage device"
built into its drippers and prevents water draining out of them when the system is shut-off. It will
hold back 1.4m of water within the drip system. This dripperline should be considered for
projects where water drainage is undesirable.
NETAFIM @BCL@C40BDC65.doc 20
21/12/2009