I've flushed plants for about 20 minutes with a shower handle during the last weeks before harvest, no prob.
I bet you could flush them quite easily for an hour, they get even worse than that thrown at them in nature, it becomes a problem when it happens too often.
I'm sure you could rinse the soil till its neutral?

5 PH isn't any where lethal as far as I know, just not very healthy for them. The damage your plants took in the pics will probably only slow their growth a week, 10 days, I would think, and effect some yield. But I've never had it happen to me, so its only speculation.
faithlessxxx Reviewed by faithlessxxx on . PLEASE HUGE MISTAKE HAPPENED!!! the 1 night my partner was to take carer of feeding our plants they went ahead and dumped strait PH up into all our plants even though the water and food was already mixed and waiting in the SAME JUG WE ALWAYS USE!!!! so now of course they are like FUCKED UP....do i flush these babies as fast as i can???? do i use more ph down??? wow im so lost.....anyone elses have 1/2 and idea??? itll be 1/2 more of an idea than i have... PLEASE and THANK YOU Rating: 5