Water is a scarce commodity. In most areas of the world, the price of water is steadily increasing. It make sense to create designs which take every opportunity to minimisise water use. There are a number of aspects of landscape design where this needs to be considered. This project involves creating CAD drawings covering the installation of water conservation methods.
Lawn irrigation
It is likely that the owner of this property will want a sub surface irrigation system installed under a newly planted 'instant' lawn. We would like you to create a series of drawings which will give the owner some indication as to how the system will be installed. this will be important for later maintenance.
Some research
Your first step should be to acquaint yourself with the guidelines for sub-surface irrigation produced by the manufacturer. The link below takes you to to a paper on the subject by one of the main equipment suppliers in this field. Please download and read it.
Click here for the Netafilm manual. It is a PDF file so try and read it online using Acrobat Reader. Remember, we are trying to teach you to use digital delivery whereve possible.
The manual contains a (rather complex) diagram showing how a lawn irrigation system might be installed.
Your task is to use GardenCAD to produce a CAD version of the drawing above. The drawing will become a standard block and used in any job that calls for subsurface irrigation under lawned areas. It will be saved in GardenCAD's block folder and used (stamped in) whenever a design calls for lawn irrigation.
Sub surface irrigation in a design
The figure below shows a schematic of how such a system might be installed in our sample site behind the two story house. Note that the note calls for it to be read in conjunction with the generic diagram for the installation of irriagtion above.
An extension
You might also like to develop a block drawing showing how the sub surface soils are prepared prior to the installation of such a system. This could be as simple as a MTEXT block of text.