Efficient irrigation requires a quality irrigation system design, water management skills and regular system maintenance. Maintaining irrigation systems is one of the most effective ways to reduce wasted water and reduce pollution from run-off and over-irrigation.
Also, a proper system will improve plant health by applying the correct amount of water where it can be utilized.
The minimum set of rules you have to stick to says that you should check the irrigation system twice seasonally, once in the beginning of the season and another time at the middle. Ideally, you should check it on a monthly basis.
For checking the system you have to inspect the controller and make sure it is working, update the time and date, check all the connections, replace the back-up battery and turn on every section to check for any damage. Also, set the schedule to reflect the current watering needs of the plants according to the season. Plants require less water in cool spring and fall periods, and more water in the heat of summer.
Clogging also causes a lack of water for your plants, in which case you have to clean the filters. Other problems you might find are irrigation heads buried by surrounding grass or other plant growth in case of sprinklers you have to twist to raise it or dig out and reposition heads or you can discover either dry spots which signals that the garden has poor water coverage or wet spots that may be due to constant seepage out.
To have a perfect irrigation, you should also find if you can improve the system with updates and renovations. New technologies will most likely result in improved water management.
If you have a drip system, inject chlorine to help control the growth of bacteria and make sure the plant roots are not getting into the irrigation system and block it up.
Don't forget, a proper garden irrigation doesn't mean that you only have to put the plants or lay the sod, but it requires constant attention from your part. Otherwise, it might prove an inefficient investment.