I really can't say what happened. When you say 10 gallons per hour 3 hours a day are we talking about 30 gallons per day per plant or spread over an area? If an area, how large?

I mean root rot from too much water is possible and would result in wilting, but it's not possible to tell from the information given how likely this is.

More info please. ;-)

sounds like thats way to much water if i'm under standing correctly' 30 gallons a day 7 days a week?. I grow the big striped watermelons in hills and water the hills only by hand.I put about 5 gallons on each hill every 2 or 3 days and grow good size sweet mellons. hope that helps you

james

I have cukes, in the same family as watermelons and squash, and they appear to wilt a lot during the day when temps hit 85F or higher. This is a protective mechanism of the plant. By lower temperatures, and nightfall, the leaves perk up again.

However I did just post asking if this wilting (due to hot weather) causes the cukes to become bitter.