Here in my country summer is coming that means water level in dams would be low.
In my place, we have water supply but not 24/7. There are times no water at day time and would restore past six in the evening.
On the worst days of summer, it would be only on wee hours and for an hour or two. if unlucky not even clean. That is why I always put a strain on the faucets.
Yet here I am , planning to do gardening 😂😆. If I haven't read your post, it totally slips my mind .
Where do you live? That sounds like some hard effort! Look into wicking beds, they are amazing