AeroNautiCal
Explorer
I just keep a few cans of this in the glove box...
If you are using Carlon Conduit, schedule 80 will provide a good UV rating, and is very impact resistant.
Typical PVC conduit is listed for exposed outdoor applications. It is "sunlight resistant" what means it lasts years in sunlight, And decades longer coated with paint.
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For mounting a 6 inch diameter ABS pipe on my yakima rack, I went with inexpensive stainless clamps that are available at any hardware store and slightly more difficult to unlatch (and steal the pipe) than the fist clamps: two small clamps that went around the load bars; two long clamps attached to the small ones (perpendicularly) and the connected around the circumference of the pipe; and then one large going around the center of pipe and mounted to the yakima megawarrior with a rolled up army surplus inner tube in between to cushion the pipe against the cargo rack (this is not necessary, but I was looking for a place to keep the inner tube and this worked). I don't use the pipe for storing water. Rather, I use it for storing fishing rods and other long objects, e.g. steel tripod for dutch oven. It weighs about 15 lbs full of gear. I have a bike rack on the opposite side, but I may go with a matching six inch pipe for water storage when I am not hauling the bike.
Note: I don't have a close up photo handy. But you get the idea from this pic:
View attachment 127656
I am a big fan of the Scepter water can system. Portable, easy to clean and inexpensive. And will outlive you and your rig. Can be pressurized too