The sprinkler layout is the most important part of any installation. Without adequate water to all areas you will end up with dead patches or have to water for longer periods, costing you more in the end. There are 2 key points to remember when designing your system.

1. Ensure at least one other sprinkler sprays onto each sprinkler head. The reason for this is that for a sprinkler to acieve the radius they are rated at, they only lightly touch the area directly underneath the sprinkler head. In fact the first 1/4 of the radius gets very little at all. This is why having another sprinkler spray water back onto each sprinkler head is so important.

2. Ensure all areas get water from at least 2 sprinklers. This will reduce the amount of time it takes to water all areas of your lawn or garden adequately to help prevent dry patches. It will also help prevent the over watering of others areas when due to poor design you have to run your system longer to keep certain areas green.

Below you will find illustrations highlighting the effects of both a correctly designed layout and an incorrect one.

Note how each sprinkler has at least one other sprinkler feeding onto it and all areas have at least 2 sprinklers covering it. This ensures a more even watering of your lawn and less watering time to keep all areas green. You may think the middle will get very wet but with smaller nozzles on the corner sprinklers it proves a very effective design.