The answer to 'irrigation system vs' is that an irrigation system is generally a more comprehensive and automated solution for watering your lawn and landscaping, while manual watering with a hose or sprinkler can be a more flexible and lower-cost option. Irrigation systems provide consistent, targeted watering on a schedule to keep your plants healthy, while manual watering allows you to address specific areas as needed.
Irrigation systems typically require professional installation and have higher upfront costs, but can save time and water in the long run. Manual watering is a simpler DIY option, but requires more hands-on effort and may not provide even coverage across your landscape.