Sudden drop in water pressure

Last time I set up my automatic sprayers, they were blasting all over the place. Now some of the hoses are dripping a bit, and some aren't getting any flow at all. I don't think I changed anything except maybe adding more water to the reservoir. I'm so confused lol.

Clogged lines?

My wild guess is that either the battery from the unplugged timer had insufficient power, or the lines weren't filled up, and so didn't have pressure. Tried it again and it worked fine *throws hands in air* gotta find a way to delete this post lol, but thank you