![](https://www.lawncentral.com/wp-content/uploads/2020/05/Geranium_1149036368-150x150.jpg)
The tuna can test is a great way to ensure you are watering your lawn enough. It’s easy as one, two, three:
1
Turn on your sprinkler system.
2
2. Place an empty tuna can in the area you are watering. If you don’t have a tuna can, just make sure your container is at least 1 inch tall and has straight sides.
![](https://www.lawncentral.com/wp-content/uploads/2021/03/tuna-can-1024x759.jpg)
3
Time how long it takes to fill the can to one inch of water.
That time is how long your sprinklers should run twice a week.