I have several 1 ton dumps. I have custom made tarps for each. I currently have them secured tight-fitting bungee cords on the sides and back. Even tho when weights gets on it no good water snow pools weight down the tarp. My problem is even with metal pipes going from side to side I installed with flanges I get water and snow in between them. Is there a way to perhaps bend the pipes so that it resemble one of those carport garages so the water and snow doesn't collect in between the pipes?