You have decided to install an underground watering system for your lawn? Before starting the work, it is essential to have a technical study carried out by a professional.
There is no need to rush into buying pipes, fittings, sprinklers... 90% of the success of your installation depends on the quality of a preliminary study on plan; this will allow you :
- To know if, technically, you can make such an installation. Depending on the flow rate and pressure available in your home, this is not always the case!
- To obtain a list of all the necessary supplies, without forgetting anything.
- To be sure that the underground installation will work (maximum number of sprinklers per pipe, location of solenoid valves, installation of the programmer, diameters of the pipes to be used,...).
- Most importantly, it will allow you to know exactly where to place the sprinklers.
You may think that this last point seems simple to address, and yet it is one of the most difficult parts to design in an optimized way.
Only a specialist, who is familiar with the technical characteristics of the various existing sprinklers, will be able to advise you on the locations that will be definitive once the trenches have been filled in.
A wrong location, and you risk to be disappointed with what you have installed by yourself.
The main risk is that the coverage (...rainfall) is not balanced. In this case, you will have to water longer than expected certain areas of the garden that are not properly covered, in order to "wet" everything.
This will result in a very high (too high!) water consumption.
In short, the correct crossing of sprinklers offers the guarantee of a uniform watering quickly, thus saving water.
This is why, once the technical study on the plan is in your hands, it is imperative not to modify what has been done, especially in terms of the quantity of sprinklers planned, and the crossing of the watering zones. As always, a sprinkler must cover a large part of the surface of its neighbor, this is the first principle to respect.
Some DIY superstores will provide you with a free technical study through their supplier.
You can also ask a professional, but the service will probably be invoiced in this case.
Once you have the technical study on plan in your hands, you can get the useful material, and start digging...
Rather than with your arms, I can only encourage you to use a rental machine : excavator, trencher...
