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Greenhouse Drip Irrigation

Greenhouse Or Poly Tunnel Drip Irrigation 

Drip irrigation is probably the simplest, most precise and easiest very little water as the water is applied straight on to the compost.  In many cases we would recommend using drip irrigation with a misting system that can be used during warmer weather of if the plants require a higher humidity.  Humidity in a greenhouse or poly tunnel is very important as it helps to balance the temperature in the house.  It can be as simple as wetting the path or gravel plant basis to a dedicated misting sytem.  

The choice of drippers is vast and can be balanced up depending on the type of plants that you are growing in the greenhouse.  This can range from adjustable drippers with integrated pegs to pressure compensated drippers that make sure tat each plant will receive the same amount of water no matter what position it is in the greenhouse or Polytunell. 

The Supply Pipe 

To run the drippers you will need a supply pipe that will distribute the water round the greenhouse or polytunnel so that the drippers receive enough water.  

The diameter of this can vary dramatically depending on the size of the polytunnel or greenhouse, the number of drippers that will be running at one time and of course the amount of water being fed in to the system either from a pump and a tank or for smaller systems from the mains water supply.  If you have a large greenhouse or polytunnel and need more advice then please do call us on 01189736905 or email [email protected].  If you would prefer us to design the system for you or for nurseries, garden centres and fruit growers then please do take advantage of our free planning service 

The type of pipe 

You should use LDPE ( Low density polyethylene pipe) with barbed drippers.  You can use any size from 16mm, 20mm,25mm and 32mm LDPE pipe.  Low density polyethylene pipe will allow you to punch a hole in the pipe and then insert either the dripper directly or if you would rather you can insert an adaptor that will take a 6 mm PVC flexible pipe so that you can run the small pipe to the pot, basket, grow bag and then insert the dripper on to the end.  With the endline drippers and the Woodpeckers these should be inserted in to the supply pipe and then a 6mm pipe pushed on to the end which you can then put a pot pecker on to so that the pipe outlet stays in the correct place and water can drip through the stake 

To view or purchase LDPE pipe please click here 

 

What diameter of pipe should I use 

Drip irrigation uses a small amount of water over a longer period of time so for small greenhouses and poly tunnell you should be able to use the standard 16mm outside diameter polyethylene pipe.  For bigger greenhouses or if the water supply is travelling a long distance from the water source to the greenhouse then it would probably be better to use a 20 mm outside diameter LDPE pipe 

What fittings should I use 

LDPE pipe can be used with all fittings.  So LDPE pipe can be used with Barbed Fittings, Nutlock Fittings and compression fittings.  In most cases barbed fittings are more than adequate and when fitted correctly they will withstand pressure of up to 6 bar.  If you feel the pressure may exceed 4 bar then you should fit a pressure regulator at the begriming of the system and this will regulate the flow to maintain a set pressure.  

Nutlock fittings are sort of in-between Compression fittings and barbed fittings.  They are smaller and more lightweight than the compression fittings and offer a good secure fit.  These could be used under water timers or when routing the pipe to the greenhouse 

Compression fittings are the most secure however they are quite bulky and ugly but if the pipe is travelling below ground then we would suggest that these are probably the best and safest fitting to use 

LINK TO BARBED FITTINGS PLEASE CLICK HERE 

LINK TO NUTLOCK PLEASE CLICK HERE 

LINK TO COMPRESSION PLEASE CLICK HERE 

 

If you are not sure then do call us on 0118 973 6905 we are more than happy to help 




Model Image Item Name Price
PAL30910000
Adjustable Dripper 0-70 Litres Per Hour

Adjustable Dripper 0-70 Litres Per Hour

Adjustable Dripper  0 - 70 litres per hour  This barbed dripper/mini sprinkler has a barbed end which can either be inserted directly in to LDPE pipe or it can be used with a 6mm outside diameter ( 4mm inside diameter ) PVC Flexible...
£0.42
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eOT905500
Adjustable Dripper With Spike 0 - 40 Litres Per Hour Endline

Adjustable Dripper With Spike 0 - 40 Litres Per Hour Endline

Palaplast Adjustable Dripper With Spike  The Adjustable dripper connects directly to the 6mm pipe with a simple push fit Connection.  The top rotates giving an adjustable output from 0 litres up to 40 litres per hour.  The dripper...
£0.48
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E905510
Adjustable Dripper With Spike 0- 40 lph In-Line

Adjustable Dripper With Spike 0- 40 lph In-Line

Optima Adjustable Dripper On Spike In-Line  The optima adjustable in-line dripper is idea for watering tubs baskets pots and troughs.  The unit can be used with the endline adjustable dripper.  The dripper flow adjustment is simple to...
£0.48
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TECO905610
Ottima PC360 In Line Adjustable Dripper 30 LPH Pressure Compensated

Ottima PC360 In Line Adjustable Dripper 30 LPH Pressure Compensated

Ottima PC360 Pressure Compensated Dripper On A Stake 30 Litres Per Hour  The Ottima dripper with pressure compensated valve offers a reliable dripper which is pressure compensated making sure that the same amount of water comes out of each...
£1.13
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CZ5545
Netafim Woodpecker Dripper 2 lph

Netafim Woodpecker Dripper 2 lph

Netafim non compensated drippers This 2 litre per hour button dripper makes easy work when installing and retro fitting drip irrigation to an existing system.    Specification Maximum working pressure = 2 bar  so if the pressure is...
£0.46
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CZ5550
Netafim Woodpecker Dripper 4 lph

Netafim Woodpecker Dripper 4 lph

Netafim Woodpecker Dripper 4 lph    Netafim non compensated drippers This 4 litre per hour button dripper makes easy work when installing and retro fitting drip irrigation to an existing system.    Specification Maximum...
£0.46
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CZ5555
Netafim Woodpecker Dripper 8 lph

Netafim Woodpecker Dripper 8 lph

Netafim non compensated drippers This 8 litre per hour button dripper makes easy work when installing and retro fitting drip irrigation to an existing system.    Specification Maximum working pressure = 2 bar  so if the pressure is...
£0.46
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CZ5246
Single Outlet Endline Dripper 1.2 LPH PCJ HCNL

Single Outlet Endline Dripper 1.2 LPH PCJ HCNL

Netafim PCJ HCNL Dripper With Barb Drip Rate 1.2 Litres Per Hour  The PCJ HCNL is a pressure compensated dripper with anti drain valve fitted.  The unit is self cleaning/ flushing and offer a very reliable dripper for use in greenhouses,...
£0.59
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CZ5247
Single Outlet Endline Dripper 2 LPH PCJ HCNL

Single Outlet Endline Dripper 2 LPH PCJ HCNL

Netafim PCJ HCNL Dripper With Barb Drip Rate 2 Litres Per Hour  The PCJ HCNL is a pressure compensated dripper with anti drain valve fitted.  The unit is self cleaning/ flushing and offer a very reliable dripper for use in greenhouses,...
£0.59
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CZ5248
Single Outlet Endline Dripper 3 LPH PCJ HCNL

Single Outlet Endline Dripper 3 LPH PCJ HCNL

Netafim PCJ HCNL Dripper With Barb Drip Rate 3 Litres Per Hour  The PCJ HCNL is a pressure compensated dripper with anti drain valve fitted.  The unit is self cleaning/ flushing and offer a very reliable dripper for use in greenhouses,...
£0.59
details
 Sold Out 
CZ5249
Single Outlet Endline Dripper 4 LPH PCJ HCNL

Single Outlet Endline Dripper 4 LPH PCJ HCNL

Netafim PCJ HCNL Dripper With Barb Drip Rate 4 Litres Per Hour  The PCJ HCNL is a pressure compensated dripper with anti drain valve fitted.  The unit is self cleaning/ flushing and offer a very reliable dripper for use in greenhouses,...
£0.59
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CZ5298C
Techflow Junior Inline Dripper 2 LPH Pressure Compensated

Techflow Junior Inline Dripper 2 LPH Pressure Compensated

TechFlow Junior Inline Dripper 2 LPH Drip Rate  The Techflow Junior dripper is a very high quality pressure compensated anti syphon self cleaning dripper.  This is an ideal dripper for greenhouses, landscape and other installations that...
£0.59
details
 Sold Out 
CZ5298B
TechFlow Junior Inline Dripper 3 LPH Pressure Compensated

TechFlow Junior Inline Dripper 3 LPH Pressure Compensated

TechFlow Junior Inline Dripper 3 LPH Drip Rate  The Techflow Junior dripper is a very high quality pressure compensated anti syphon self cleaning dripper.  This is an ideal dripper for greenhouses, landscape and other installations that...
£0.59
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CZ5298A
TechFlow Junior Inline Dripper 4 LPH Pressure Compensated

TechFlow Junior Inline Dripper 4 LPH Pressure Compensated

TechFlow Junior Inline Dripper 4 LPH Drip Rate  The Techflow Junior dripper is a very high quality pressure compensated anti syphon self cleaning dripper.  This is an ideal dripper for greenhouses, landscape and other installations that...
£0.59
Add:
CZ5298
TechFlow Junior Inline Dripper 8 LPH Pressure Compensated

TechFlow Junior Inline Dripper 8 LPH Pressure Compensated

TechFlow Junior Inline Dripper 8 LPH Drip Rate  The Techflow Junior dripper is a very high quality pressure compensated anti syphon self cleaning dripper.  This is an ideal dripper for greenhouses, landscape and other installations that...
£0.59
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CZ5637A
Pot Pecker Drip Stake (10 Pack)

Pot Pecker Drip Stake (10 Pack)

Pot Pecker Drip Stake (10 Pack) Ideal to use with any dripper that feeds from the supply pipe using 6mm outside diameter flexible pipe.  The 6mm O/D or 4mm I/D pipe pushes on to the end of the stake and then water will drip down the stake in to...
£1.42
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Z5725
Potpecker 2 LPH Dripper Lead and Nipple (Pack 10)

Potpecker 2 LPH Dripper Lead and Nipple (Pack 10)

Potpecker 2 LPH Dripper Lead and Nipple (Pack 10)   An easy to use dripper dripping at 2 lph with a cap so that the drip can be shut off to individual plants if required.  An ideal dripper if plants and containers are moved about 
£9.88
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CPAL30660006
Straight Coupling 6mm To Supply Tube

Straight Coupling 6mm To Supply Tube

Straight Coupling 6mm To Supply Tube    Used to connect 6mm micro tube - 16 or 20mm pipe Use with 3mm hole punch  
£0.16
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Z5740
Single Outlet Drip Nozzle 14 L/H (Pack 10) with lead and stake

Single Outlet Drip Nozzle 14 L/H (Pack 10) with lead and stake

Single Outlet Drip Nozzle 14 L/H  with lead and stake (Pack 10)   Use in pots and troughs spaced at 50cm intervals, over large trees and for large specimen plants Can be used with mains water pressure so no need to use pressure reducers...
£17.16
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E881003
Punch Pliers 16/20mm Pipe 3mm

Punch Pliers 16/20mm Pipe 3mm

Punch pliers for pipe 16/20mm The punch pliers are normally for large installation that require many 100's of holes to be punched in to either 16 or 20mm LDPE Pipe.  For smaller or domestic jobs please see the budget hand punch as this is...
£16.90
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C881503
Punch Pliers 25/32mm Pipe 3mm

Punch Pliers 25/32mm Pipe 3mm

Punch pliers for pipe 25/32mm LDPE Outside Diameter Pipe  Creates 3mm holes in piping for barbed fittings and drippers Fits comfortably in your hand and works just like pliers  
£22.36
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C10680034
Budget Hand Punch

Budget Hand Punch

Budget hand punch The budget hand punched is used to punch a hole in the main supply tube which is either 16 or 20mm in diameter so that the dripper can be inserted and then the micro pipe attached to the end of the dripper     Hole...
£1.04
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C11041666
Barbed Cross 2 x 16mm - 2 x 6mm

Barbed Cross 2 x 16mm - 2 x 6mm

Barbed Cross 2 x 16mm - 2 X 6mm  An easy push fot fittings that will give two take off points from a 16mm pipe so that you can run your 6mm micro pipe to baskets and containers.   UV Stabilised  Industrial grade plastic  Simple...
£1.11
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