We installed this rack on our aircon ledge railing (accessible from our kitchen) so we could display our plants for sun.
This was the first irrigator we got, it came with a simple pump (the most affordable type) — it just works.
This is the another type of irrigator we got, and our favourite! It works like a sprinkler, the water spreads over a wider area and so set this up permanently for water intensive plants.
Another view of the watering system — we only set this up when we are travelling as the watering frequency is much lower - 4-7 days depending on our humidity.