Saves water, saves time, watering in your absence, reduces fungus growth on leaves, reduces runoff.
Whether for surface watering, underground watering or drip watering, the principle is the same: a programmer orders solenoid valves to open their watering channel at a time and for a duration that you have planned. You can thus decide how to water the lawn, how to water the tomatoes, how to water the hedge, at different times of the day. And this is the enormous advantage of automatic remote control switch watering: each plant has different water needs, and the watering programmer can manage several watering channels.
To install automatic watering, it is thus necessary to determine the zones of watering well, while trying to group in the same zone of the plants which have the same needs in water.
The installation of an automatic sprinkler consists in creating a network of sprinkler pipes managed individually by a solenoid valve, and all connected to the programmer. So you need:
Water hoses and micro tubes
An automatic sprinkler programmer
Start by drawing a plan of your garden, drawing the contours of your house and terrace, and any obstacles, shelters, etc. Then indicate the locations of your plantations, trying to determine areas: the vegetable garden, the hedge, the flower beds, etc.
Each area will have similar water needs. You can then draw your watering paths.
This raises the question of the choice of sprinklers. Caution: Never put different types of sprinklers, for example drippers and micro-sprinklers, or fixed and mobile sprinklers such as nozzles and turbines, on the same watering lane, because they have different watering times and different flow rates.
Calculate the flow from your tap. If it is not enough to run the entire network, create several smart irrigation controllers. Then check the pressure of your water supply. It must be at least 2 bar. If automatic drip irrigation is installed, a pressure reducer is required. Draw with a compass the range and angle of the rotating sprinklers.
Then install your automatic sprinkler programmer. It can either be attached to the tap, directly to a water pipe, or offset to the wall. Deploy your PVC pipe network, which you will bury in the case of automatic underground watering. Make sure as much as possible to place your faucet in the middle of the watering path, in order to maintain pressure at the end of the line. Indeed, the pressure decreases by 0.25 bar every 10m, along a 25mm garden hose.
Place a solenoid valve by watering, then your sprinklers: turbines, nozzles, drippers, micro-sprinklers, etc..