Sure thing, let’s keep it tight and useful. First, line the balcony roof with a bit of gutter or a simple catch‑board made from a 4‑inch wide plywood strip. Run that into a 5‑gal bucket or a small barrel; add a screen over the inlet to keep leaves out. Drop a first‑flush diverter—just a short pipe that’s blocked for the first few liters and then opens so the dirty start of the rain doesn’t get stored. Below the barrel put a sand filter or a few layers of charcoal and gravel to keep the water clear. Then tie a 1‑inch PVC pipe to the barrel’s outlet, attach a tap, and run that to your plants or to a drip line if you want a bit more control. Keep everything capped when not in use, and you’ll have a tidy, reliable rainwater system that takes only a few hours to set up. Good luck, and remember to check the barrel for cracks every season.

Glad you’re on board—just stack that net over the gutter, label the barrel, and you’ll have a tidy, self‑cleaning system that keeps the garden fed without fuss. Good luck, and if the rain stops for a while, just remember to tap the barrel out before you refill.