TECHNICAL DRIP IRRIGATION

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2 NETAFIM DRIP DRIPPERLINE & FITTING SELECTION - THINWALL SELECTION GUIDE BY DRIPPERLINES - THIN WALLED RING CONNECTORS FLARE CONNECTORS NUT TWIST LOC CONNECTORS Dripperline 16mm 12mm 16mm 16mm 12 DripNet PC Streamline Streamline Streamline DripNet PC DripNet PC CONNECTORS TEHCNICAL DATA - THIN WALLED DRIPPERLINE SUB-SURFACE INSTALLATION LAYOUT/RECOILING REUSABLE INTERNAL DIAMETER WALL THICNESS DEEP BURYING SHALLOW BURYING Connectors for Thin/Medium walled dripperlines RING FAST CONN. 16 blue ring mil 16 black/white ring mil 22 blue ring mil 25 black ring mil FLARE for TWD (BLUE NUT) mil mil mil mil mil TWIST LOC (TWD) mil mil mil Suitable Not suitable / Suitable but not recommended / / / / / / / T148

3 NETAFIM DRIP DRIPPERLINE & FITTING SELECTION - THICWALL CONNECTORS TECHNICAL DATA - THIC WALLED INTERNAL DIAMETER Connectors for Thick walled dripperlines BARB BARB for MINING (VIOLET) FLARE for HWD (ORANGE NUT) DRIPPERLINE WALL THICNESS mm mm 1.2 mm mm mm mm 1.2 mm 1.1 mm mm SUB-SURFACE INSTALLATION DEEP BURYING SHALLOW BURYING LAYOUT/RECOILING REUSABLE mm mm mm Suitable Not suitable / Suitable but not recommended SELECTION GUIDE BY DRIPPERLINES - THIC WALLED BARB CONNECTORS FLARE CONNECTORS Dripperline 12mm 16mm 17mm 20mm 16/17mm 20mm 23mm Tiran Tiran UniRam DripNet PC Tiran UniRam DripNet PC Tiran UniRam DripNet PC Tiran UniRam Tiran UniRam DripNet PC Tiran UniRam DripNet PC Tiran DripNet PC UniRam T149

4 NETAFIM DRIPPERLINE UNIRAM 20 CNL Pressure-compensating range: bar. Anti-Siphon and Anti-Drain mechanism Largest filter in each dripper. Recommended filtration: 130 micron Double TurboNet TM labyrinth with large water passage. To be welded into thick-walled dripperlines (0.9, 1.0 and 1.2 mm). Injected silicon diaphragm. UV resistant. Resistant to standard nutrients used in agricultural UniRam TM drippers meet ISO 9261 Standards with production certified by the Israel Standards Institute (SII) Pressure compensated : Precise and equal amounts of water are delivered over a broad pressure range. 100 uniformity of water and nutrient distribution along the laterals. Anti-Siphon mechanism : Prevents contaminants from being drawn into the dripper. Anti-drain (CNL) system : Eliminates drainage and refill effect, and improves efficiency in pulse irrigation Continuously self flushing : Flushes debris as it is detected, throughout operation, not just at the beginning or end of a cycle, ensuring uninterrupted dripper operation. Self-flushing system with wide filtration area improves resistance to clogging thus making UniRam TM highly resistant when using low quality water. Physical root barrier : Better protection against root intrusion without reliance on chemicals. TurboNet TM labyrinth assures wide water passages, large deep and wide cross section improves clogging resistance. Widest water passages within the dripper. The water is drawn in to the dripper from the stream center, preventing the entrance of sediments in to the drippers. DRIPPERS TECHNICAL DATA WORING PRESSURE RANGE WATER PASSAGES DIMENSIONS WIDTH-DEPTH-LENGTH AREA (MM2) EPONENT * RECOMMENDED (MICRON)/(MESH) SHUT OFF PRESSURE x 0.74 x / x 1.00 x / * Within working pressure range DRIPPERLINES TECHNICAL DATA MODEL INSIDE DIAMETER WALL THICNESS OUTSIDE DIAMETER MA. WORING PRESSURE MAIMUM FLUSHING PRESSURE D T150

5 NETAFIM DRIPPERLINE MA. LATERAL LENGTH (METER) AT DIFFERENT INLET PRESSURE AND DIFFERENT SLOPES UNIRAM CNL 20010/20012 ID 17.5 MM D L/H FLAT TERRAIN INLET PRESSURE Minimum considered pressure 0.1 bar Max. working pressure according the dripperline wall thickness definition Due to lateral filling time and flushing effectiveness it is not recommended to exceed 800 meters lateral length MA. LATERAL LENGTH (METER) AT DIFFERENT INLET PRESSURE AND DIFFERENT SLOPES UNIRAM CNL 20010/20012 ID 17.5 MM D L/H INLET PRESSURE FLAT TERRAIN Minimum considered pressure 0.1 bar Max. working pressure according the dripperline wall thickness definition T151

6 NETAFIM DRIPPERLINE UNIRAM RC Pressure-compensating range: bar. Largest filter in each dripper. Recommended filtration: according to drippers flow rate Double TurboNet TM labyrinth with large water passage. To be welded into thick-walled dripperlines (0.9, 1.0 and 1.2 mm). Injected silicon diaphragm. UV resistant. Resistant to standard nutrients used in agricultural UniRam TM drippers meet ISO 9261 Standards with production certified by the Israel Standards Institute (SII) Pressure compensated : Precise and equal amounts of water are delivered over a broad pressure range. 100 % uniformity of water and nutrient distribution along the laterals. Continuously self flushing : Flushes debris as it is detected, throughout operation, not just at the beginning or end of a cycle, ensuring uninterrupted dripper operation. Self-flushing system with wide filtration area improves resistance to clogging thus making UniRamTM highly resistant when using low quality water. Physical root barrier : Better protection against root intrusion without reliance on chemicals. TurboNet TM labyrinth assures wide water passages, large deep and wide cross section improves clogging resistance. Widest water passages within the dripper. The water is drawn in to the dripper from the stream center, preventing the entrance of sediments in to the drippers. DRIPPERS TECHNICAL DATA WORING PRESSURE RANGE WATER PASSAGES DIMENSIONS WIDTH-DEPTH-LENGTH AREA (MM2) EPONENT * RECOMMENDED (MICRON)/(MESH) x 0.70 x /80 * Within working pressure range DRIPPERLINES TECHNICAL DATA MODEL INSIDE DIAMETER WALL THICNESS OUTSIDE DIAMETER MA. WORING PRESSURE MAIMUM FLUSHING PRESSURE D MA. LATERAL LENGTH (METER) AT DIFFERENT INLET PRESSURE AND DIFFERENT SLOPES UNIRAM RC 16009/16010/16012 ID 14.2 MM D L/H INLET PRESSURE FLAT TERRAIN T152 Minimum considered pressure 0.5 bar Max. working pressure according the dripperline wall thickness definition

7 NETAFIM DRIPPERLINE DRIPNET PC Pressure-compensating range: /3.0 bar (according to flow rate model). Recommended filtration: according to drippers flow rate TurboNet TM labyrinth with large water passage. To be welded into thick-walled dripperlines (0.9, 1.0 and 1.2 mm). Injected silicon diaphragm. UV resistant. Resistant to standard nutrients used in agricultural DripNet PC TM drippers meet ISO 9261 Standards with production certified by the Israel Standards Institute (SII) Pressure compensated : Precise and equal amounts of water are delivered over a broad pressure range. 100 % uniformity of water and nutrient distribution along the laterals. Continuously self flushing : Flushes debris as it is detected, throughout operation, not just at the beginning or end of a cycle, ensuring uninterrupted dripper operation. Self-flushing system with wide filtration area improves resistance to clogging. TurboNet TM labyrinth assures wide water passages, large deep and wide cross section improves clogging resistance. Widest water passages within the dripper. The water is drawn in to the dripper from the stream center, preventing the entrance of sediments in to the drippers. D R I PPERS T E C HN IC AL DATA F LO W RATE WOR I NG PRESSURE RANGE ( B AR) WATER PASSAGES D I MENS I ONS W I DTH-DEPTH-LENGTH FI LTRAT I ON AREA (MM2) E PONENT * R E C OMMENDED FI LTRAT I ON (M IC RON)/(MESH) x 0.60 x / x 0.73 x /80 * Within working pressure range DRIPPERLINES TECHNICAL DATA MODEL INS IDE DIAMETER WALL THICNESS OUTSIDE DIAMETER MA. WORING PRESSURE MAIMUM FLUSHING PRESSURE D *Maximum working pressure is defined by the dripper and not by the dripperline wall thickness MA. LATERAL LENGTH (METER) AT DIFFERENT INLET PRESSURE AND DIFFERENT SLOPES DRIPNET PC 16009/16010/16012 ID 14.2 MM D L/H INLET PRESSURE FLAT TERRAIN Minimum considered pressure 0.4 bar T153

8 NETAFIM DRIPPERLINE DRIPNET THINWALL Pressure-compensating range: 0.25/0.40/ /3.0/3.5 bar (according to flow rate model & dripperlines wall-thickness). Recommended filtration: according to drippers flow rate TurboNet TM labyrinth with large water passage. A wide assortment of dripperlines wall thickness models (0.31, 0.34, 0.38, 0.50, and 0.63 mm). Injected silicon diaphragm. UV resistant. Resistant to standard nutrients used in agricultural DripNet PC TM drippers meet ISO 9261 Standards with production certified by the Israel Standards Institute (SII) Pressure compensated : Precise and equal amounts of water are delivered over a broad pressure range. 100% uniformity of water and nutrient distribution along the laterals. Continuously self flushing : Flushes debris as it is detected, throughout operation, not just at the beginning or end of a cycle, ensuring uninterrupted dripper operation. Self-flushing system with wide filtration area improves resistance to clogging. TurboNet TM labyrinth assures wide water passages, large deep and wide cross section improves clogging resistance. Widest water passages within the dripper. The water is drawn into the dripper from the stream center, preventing the entrance of sediments in to the drippers. D R I PPERS T E C HN IC AL DATA F LOW RATE W OR I NG PRESSURE RANGE ( B AR) W ATER PASSAGES D I MENS I ONS WI DTH-DEPTH-LENGTH FI LTRAT I ON AREA (MM2) E PONENT * R E C OMMENDED FI LTRAT I ON (M IC RON)/(MESH) x 0.60 x / x 0.60 x /120 * Within working pressure range D R I PPERL I NES T E C HN IC AL DATA M ODEL INS I DE D I AMETER W ALL TH IC NESS O UTS I DE D I AMETER M A. WOR I NG PRESSURE ( B AR) M A I MUM FLUSH I NG PRESSURE ( B AR) * *Maximum working pressure is defined by the dripper and not by the dripperline wall thickness M A. LATERAL LENGTH (METERS) AT D I FFERENT I NLET PRESSURE AND D I FFERENT SLOPES DRIPNET P C 12125/12150/12200/12250 I D 11.8 MM D L/H U PH I LL INLET PRESSURE ( B AR) DI STAN C E B ETWEEN DR I PPERS (METER) D F LAT TERRA I N T154 D OWNH I LL Minimum considered pressure 0.4 bar Max. working pressure acoording the dripperline wall thickness definition

9 NETAFIM DRIPPERLINE MA. LATERAL LENGTH (METERS) AT DIFFERENT INLET PRESSURE AND DIFFERENT SLOPES DRIPNET PC 16125/16150 ID 16.2 MM D L/H FLAT TERRAIN INLET PRESSURE Minimum considered pressure 0.4 bar Max. working pressure acoording the dripperline wall thickness definition Due to lateral filling time and flushing effectiveness it is not recommended to exceed 800 meters lateral length MA. LATERAL LENGTH (METERS) AT DIFFERENT INLET PRESSURE AND DIFFERENT SLOPES DRIPNET PC 16125/16150 ID 16.2 MM D L/H INLET PRESSURE FLAT TERRAIN Minimum considered pressure 0.4 bar Max. working pressure acoording the dripperline wall thickness definition T155

10 NETAFIM DRIPPERLINE STREAMLINE Recommended filtration: 130 micron / 120 mesh TurboNet TM labyrinth with large water passage. To be welded into a thin-walled dripperlines (0.15, 0.20, 0.25, and 0.31 mm). UV resistant. Resistant to standard nutrients used in agricultural Streamline TMTM drippers meet ISO 9261 Standards with production certified by the Israel Standards Institute (SII) Wide filtration area to ensure optimal performance. TurboNet TM labyrinth assures wide water passages, large deep and wide cross section improves clogging resistance The water is drawn in to the dripper from the stream center, preventing the entrance of sediments in to the drippers. Injection molded dripper construction, ensuring uniform drippers and very low CV DRIPPERS TECHNICAL DATA & mm. wall thickness dripperlines * MA. WORING PRESSURE** WATER PASSAGES DIMENSIONS WIDTH-DEPTH-LENGTH AREA (MM2) EPONENT RECOMMENDED (MICRON)/(MESH) / x 0.33 x / / x 0.42 x /120 * Flow rate at 1.0 bar pressure **According to dripperlines inside diameter mm. wall thickness dripperlines * MA. WORING PRESSURE** WATER PASSAGES DIMENSIONS WIDTH-DEPTH-LENGTH AREA (MM2) EPONENT RECOMMENDED (MICRON)/(MESH) /1.0/ x 0.33 x / /1.0/ x 0.42 x /120 * Flow rate at 1.0 bar **According to dripperlines inside diameter DRIPPERLINES TECHNICAL DATA MODEL INSIDE DIAMETER WALL THICNESS OUTSIDE DIAMETER MA. WORING PRESSURE MAIMUM FLUSHING PRESSURE D T156

11 NETAFIM DRIPPERLINE MA. LATERAL LENGTH (METERS) AT DIFFERENT SLOPES - 10% FLOW VARIATION STREAMLINE ID 16.2 MM D L/H INLET PRESSURE 0.8 BAR SLOPE % FLAT TERRAIN % MA. LATERAL LENGTH (METERS) AT DIFFERENT SLOPES - 10% FLOW VARIATION STREAMLINE ID 16.2 MM D L/H INLET PRESSURE 0.8 BAR SLOPE % FLAT TERRAIN % MA. LATERAL LENGTH (METERS) AT DIFFERENT SLOPES - 10% FLOW VARIATION STREAMLINE ID 16.2 MM D L/H INLET PRESSURE 1.0 BAR SLOPE % FLAT TERRAIN % MA. LATERAL LENGTH (METERS) AT DIFFERENT SLOPES - 10% FLOW VARIATION STREAMLINE ID 16.2 MM D L/H INLET PRESSURE 1.0 BAR SLOPE % FLAT TERRAIN % T157

12 NETAFIM CNL DRIPPERS PCJ LCNL Working pressure range: 0.7 to 4.0 bar TurboNet TM labyrinth with large water passages. 7 different flow rates. 3 different outlets: nipple, barb to 3 mm ID and barb to 4 mm ID. To be inserted into thick- walled pipes (0.9, 1.0 and 1.2 mm.). Injected silicon diaphragm. PCJ LCNL, On line dripper meet ISO 9261 standards and production is certified by the Israel Standards Institute (SII) TurboNet TM labyrinth assures wide water passages, large deep and wide cross section improves clogging resistance. PC system, patented pressure differential system maintains uniform flow rate at different inlet working pressure (in the recommended working pressure range), ensuring exact distribution of the water and nutrients. Continuous self-flushing system, improves resistance to clogging. Dripper can be positioned exactly where required. Number of drippers can be increased so as to increase water quantity supply aimed at meeting tree growth rate requirement. Allows the installation of spider assembly, splitting the drip supply to a number of drip outlets. PCJ LCNL with Anti-drain system for efficient pulse irrigation, prevents water drainage and eliminates needs for refill. DRIPPERS TECHNICAL DATA NOMINAL FLOW RATE WORING PRESSURE RANGE WATER PASSAGES DIMENSIONS WIDTH-DEPTH-LENGTH (MM MM MM) AREA (MM²) EPONENT* SHUT OFF PRESSURE BASE CODE COLOR** CAP COLOR CODE x 0.77 x Brown Black x 0.75 x Red Black x 1.08 x Blue Black x 0.95 x Gray Black x 1.05 x Green Black *Within working pressure range **In addition, PCJ-LCNL is distinguished by the rings around the barb water inlet connector DRIPPER PICTURE DRIPPER MODEL PCJ-LCNL dripper with 3 mm.barb outlet PCJ-LCNL dripper with nipple outlet T158

13 NETAFIM CNL DRIPPERS PERFORMANCE DATA PCJ LCNL dripper - PE pipe 16/2.5 - I.D mm. - Inlet pressure 3.0 bar - d 0.39 Maximum lateral length (meter) SPACING BETWEEN DRIPPERS (M.) *Calculated in a plain area **Minimum considered pressure : 0.7 bar PCJ LCNL dripper - PE pipe 20/2.5 - I.D mm. - Inlet pressure 3.0 bar - d 0.13 Maximum lateral length (meter) SPACING BETWEEN DRIPPERS (M.) *Calculated in a plain area **Minimum considered pressure : 0.7 bar PCJ LCNL dripper - PE pipe 25/2.5 - I.D mm. - Inlet pressure 3.0 bar - d 0.10 Maximum lateral length (meter) SPACING BETWEEN DRIPPERS (M.) *Calculated in a plain area **Minimum considered pressure : 0.7 bar For more information, please contact Netafim Technical Department or connect to our website at : T159

14 NETAFIM CNL DRIPPERS PCJ HCNL Working pressure range: 1.5 to 4.0 bar. TurboNet TM labyrinth with large water passages. 5 different flow rates. 3 different outlets: nipple, barb to 3 mm ID and barb to 4 mm ID. To be inserted into thick- walled pipes (0.9, 1.0 and 1.2 mm.). Injected silicon diaphragm. PCJ HCNL, On line dripper meet ISO 9261 standards and production is certified by the Israel Standards Institute (SII) TurboNet TM labyrinth assures wide water passages, large deep and wide cross section improves clogging resistance. PC system, patented pressure differential system maintains uniform flow rate at different inlet working pressure (in the recommended working pressure range), ensuring exact distribution of the water and nutrients. Continuous self-flushing system, improves resistance to clogging. Dripper can be positioned exactly where required. Number of drippers can be increased so as to increase water quantity supply aimed at meeting tree growth rate requirement. Allows the installation of spider assembly, splitting the drip supply to a number of drip outlets. PCJ-HCNL with Anti-drain system for efficient pulse irrigation, prevents water drainage and eliminates needs for refill. DRIPPERS TECHNICAL DATA NOMINAL FLOW RATE WORING PRESSURE RANGE WATER PASSAGES DIMENSIONS WIDTH-DEPTH-LENGTH (MM MM MM) AREA (MM²) EPONENT* SHUT OFF PRESSURE BASE CODE COLOR CAP COLOR CODE x 0.77 x Light brown Black x 0.75 x Pink Black x 1.08 x Light blue Black x 0.95 x Light gray Black *Within working pressure range PERFORMANCE DATA PCJ HCNL dripper - PE pipe 16/2.5 - I.D mm. - Inlet pressure 3.0 bar - d 0.39 Maximum lateral length (meter) SPACING BETWEEN DRIPPERS (M.) *Calculated in a plain area **Minimum considered pressure : 1.5 bar PCJ HCNL dripper - PE pipe 20/2.5 - I.D mm. - Inlet pressure 3.0 bar - d 0.13 Maximum lateral length (meter) SPACING BETWEEN DRIPPERS (M.) *Calculated in a plain area **Minimum considered pressure : 1.5 bar T160 PCJ HCNL dripper - PE pipe 25/2.5 - I.D mm. - Inlet pressure 3.0 bar - d 0.10 Maximum lateral length (meter) SPACING BETWEEN DRIPPERS (M.) *Calculated in a plain area **Minimum considered pressure : 1.5 bar For more information, please contact Netafim Technical Department or connect to our website at :

15 NETAFIM CNL DRIPPERS PC CNL DRIPPERS Recommended filtration: 130 micron / 120 mesh TurboNet TM labyrinth with large water passage. To be inserted into thick-walled pipes (0.9, 1.0 and 1.2 mm.) UV resistant. Resistant to standard nutrients used in agricultural PC on-line drippers meet ISO 9261 Standards with production certified by the Israel Standards Institute (SII) Pressure compensated : Precise and equal amounts of water are delivered over a broad pressure range. 100 % uniformity of water and nutrient distribution along the laterals. PC-LCNL & PC-HCNL with Anti-drain (LCNL & HCNL) : Eliminates drainage and refill effect, and improves efficiency in pulse irrigation Continuously self flushing : Flushes debris as it is detected, throughout operation, not just at the beginning or end of a cycle, ensuring uninterrupted dripper operation. TurboNet TM labyrinth assures wide water passages, large deep and wide cross section improves clogging resistance. Widest water passages within the dripper. Dripper can be positioned exactly where required. Number of drippers can be increased so as to increase water quantity supply aimed at meeting tree growth rate requirement. Allows the installation of spider assembly, splitting the drip supply into a number of drip outlets. DRIPPERS TECHNICAL DATA PC-LCNL drippers WORING PRESSURE RANGE WATER PASSAGES DIMENSIONS WIDTH-DEPTH-LENGTH AREA (MM2) EPONENT* SHUT OFF PRESSURE x 1.07 x Red Brown x 1.40 x Black Brown x 1.60 x Green Brown * Within working pressure range PC-HCNL drippers WORING PRESSURE RANGE WATER PASSAGES DIMENSIONS WIDTH-DEPTH-LENGTH AREA (MM2) EPONENT* SHUT OFF PRESSURE x 1.07 x Black Black x 1.40 x Black Black x 1.60 x Black Black * Within working pressure range BASE CODE COLOR BASE CODE COLOR CAP COLOR CODE CAP COLOR CODE T161

16 NETAFIM NON-COMPENSATED DRIPPERS NON-COMPENSATED DRIPPERS Maximal working pressure: 2.0 bar. TurboNet TM labyrinth with large water passages. 5 different flow rates. The Button model to be inserted into a thick-walled pipe (0.9, 1.0 and 1.2 mm). The Pot model to be threaded into a 3*5 micro-tube. TurboNet TM labyrinth assures wide water passages, large deep and wide cross section improves clogging resistance. Dripper can be positioned exactly where required. Number of drippers can be increased to increase the water quantities applied aimed at meeting tree s growth rate requirements. Allows the installation of spider assembly, splitting the drip supply to a number of drip outlets. D RIPPERS TECHNICAL DATA B utton drippers FL O W RATE (L/H)* MAI M U M W O RING PRESSURE W ATER PASSAGES DI M ENSI O NS W IDTH-DEPTH-LENGTH ( MM.) C O NSTANT EP O NENT B ASIS C O DE C O L O R C AP C O L O R C O DE x 0.65 x Brown Black x 0.89 x Red Black x 0.95 x Blue Black x 1.20 x Black Black x 1.40 x Green Black * Flow rate at 1.0 bar pressure P ot drippers FL O W RATE (L/H)* 1.05 MAI M U M W O RING PRESSURE W ATER PASSAGES DI M ENSI O NS W IDTH-DEPTH-LENGTH ( MM.) C O NSTANT EP O NENT B ASIS C O DE C O L O R C AP C O L O R C O DE x 0.65 x Brown Black x 0.89 x Red Black x 1.20 x Black Black x 1.40 x Green Black * Flow rate at 1.0 bar pressure T162

17 NETAFIM NON-COMPENSATED DRIPPERS ARROW STAES Maximal working pressure: 1.2 bar. Turbulent labyrinth wide water passages for highest reliability and efficiency. 5 different models to meet growers requirements. To be inserted into a 3*5 micro-tube. Allows placement of drippers exactly where necessary. Allows maximum flexibility in greenhouse and nurseries (with soft PE micro- tubes). Allows installation of other Netafim TM drippers to add compensated and anti-drain functionality. Accessory to all on-line drippers for better and more accurate installation. Adaptable to all on-line drippers via barb, manifold or adapter. DRIPPERS TECHNICAL DATA (L/H)* MAIMUM WORING PRESSURE WATER PASSAGES DIMENSIONS WIDTH-DEPTH-LENGTH AREA (MM²) EPONENT x 0.60 x x 0.86 x *Flow rate at 1.0 bar pressure **Arrow dripper at 1.6 l/h. nominal flow rate, only available in the angle model. T163

18 PRE-ASSEMBLED DRIP SYSTEMS INSTRUCTIONS FOR THE HANDLING OF PRE-ASSEMBLED DRIP SYSTEMS Drip irrigation systems are manufactured with utmost care. In order for you to achieve perfect results, we have drawn up recommendations on how to store and unroll the drip irrigation system and put it into use. Receipt Upon receipt of the drip lines, check the delivery and sign the consignment note. Any deviations found must be specified on the consignment note and notified to Revaho (as soon as possible, but no later than 48 hours after receipt). Store the drip irrigation line (indoors) out of the sun in order to avoid damage due to high temperatures. Unroll the drip irrigation line within three weeks of receipt in order to avoid unnecessary leakages. Avoid lines being thrown about or treated roughly, as this could damage the drippers. Every order (of 5,000 drippers or more) complimentarily includes a hand perforator and 0.5% extra sets (2 hand perforators for more than 50,000 drippers). We recommend that you save a few of the roll stickers, as they contain information about the production batch, which may be needed in the event of complaints. Unrolling Allow the drip irrigation line to warm up to the greenhouse temperature before unrolling. We strongly recommend that the line is unrolled from a vertical reel, on a tube rail lorry. As polyethylene is sensitive to elongation and contraction, we recommend that you allow for a safety margin of 1- extra length if the lines are attached during warm weather (expansion of polyethylene is 0.0: 2 cm per degree of temperature difference per 100 metres). The lines are supplied with at least 0.5 m extra blind length (without drippers) both before and after the drippers. When inserting the spikes, start in the middle of the line and work towards the ends, thus minimising the need for additional insertion. Extra drippers can easily be added by means of the hand perforator supplied. Holes for Cobra drippers can be reamed with the supplied brass awl. Starting up Polyethylene is resistant to a great variety of chemicals, such as acids, chlorine and fertilisers (the rubber in pressure-compensating drippers is not resistant to chlorine!!). Polyethylene is not resistant to soapy products however. Only use water as a lubricant when mounting the couplings. Make sure that the PE is tightly pressed into the coupling by the rubber ring. Flush the lines thoroughly after installation in order to remove possible dirt. The memory of PE causes the lines to bend or buckle when unrolled. Bends and buckles will generally disappear in a few weeks. Buckles in micro-tubes will hardly ever reduce the water supply and can be simply removed by warming the line. Minor leakages around the perforation will generally disappear. Constriction of the micro-tube may occur if Cobra drippers have become too warm during storage. Pressing the micro-tube a few millimetres deeper into the line will make the seal effective again. Drippers to be replaced must be cut off just above the line rather than being pulled out. Extensive version (for end user) available on request. T164