Thank you so much for your reply! Yes, I had everything on hand already. Plus I get to give the plastic bottles a second life before they eventually go for recycling. It is a very low-cost solution which makes it more accessible. And growing your own food is not only fun it's therapeutic 😃
I definitely don't want people's plants dying because they think this can completely replace normal watering, haha. But it helps in really hot dry places. We get a lot of hot sunshine here in South Africa and not all plants appreciate it.