Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to harvest rain water in a household setting [title] Designate a section of your roof. [step] If you're looking for a simple water collection solution that will allow you to begin harvesting right away without making any costly updates to your home, just look up. The roof is the most commonly used catchment area.

Ending1: Even without a roof, it can provide valuable nutrients to your garden. [substeps] If you live in an area where there's more than one possible configuration for rain water, consider using more variety. Ending2: It has a set of pipes running into it, which you install to ferment water that collects and then drops off later. [substeps] Sky-high structures, like heavy-duty buildings, are ideal for this. Ending3: It holds the rainwater and moisture that requires watering and it hangs above ground, so it's perfect for daily use. [substeps] Plan accordingly by using a 4 to 6 inches (10 to 15 cm) light fixture to determine which section you're going to collect rainwater from. Ending4: It's also the most easily adapted, thanks to the expediency of gutters and other fixtures. [substeps] For best results, designate a downspout directly beneath a steep part of the roof where water tends to accumulate.

Answer format: ending1/ending2/ending3/ending4