If going downstream in Hull Pot don't consider it if there's any chance of rain. (Look at the chapter on Hull Pot in the Adventures Underground book for an explanation.)
I note the deteriorating forecast for the coming weekend. Tomorrow or Friday should be OK unless the forecast changes - in fact it'd perhaps be a good time to do it because the water is currently extremely low. It'd still be a very wet trip.
But maybe you meant Hunt Pot, as per Langcliffe's post.