The sprinkler does run off a well but it’s not dedicated just for that. I have 300’ of 3/4 inch hose connected to a yard hydrant that flows 60 gpms. The elevation of the sprinkle sends the water just over 100’ (50 feet to either side) I use my judgement on how long I leave it in one place before moving it. The soil is very dry this year. We have had very little rain. I only used it that day though because I wanted to get the seeds to germinate and not burn up.