Actually, watering is a breeze in the greenhouse. There are trays under those benches, to collect the extra water, along with towels. I water from a hose with a sprayer attached. We collect rain water off the greenhouse roof into containers in the garage. There is a vacuum pump to move the water upstairs into another container ( the greenhouse is attached to the house on top of the garage) and I use a compressor to water. No problem. And the front-room stuff etc don't get watered every day!
My husband /then Engineer set up the system years ago! Works great!
