Really enjoyed my kit so I could pull the van's drain pipe out of the storage compartment and into the rear bumper. My caravan doesn't have enough storage space and by removing the drain pipes (x2) I was able to get rid of the large plastic storage bin. Little did I know when I ordered the 6" kit that the 6" pipe would cost me twice as much as the kit and that it wasn't available at the regular store. I had to go to my local plumbing wholesaler and plan that 40" water pipes are only available in 20 foot sections. Don't get me wrong, the set appears to be very well put together and I'm sure I'll have blast-proof storage that will serve me for years to come. I would not have bought and started this project if I knew the total cost of this project. It's my fault for not doing my homework before purchasing the kit.