the right pic this time
Keep it simple --Here's my roof rig. The sign is easy to read and effective!
I travel with little to no water and some safe jugs of SH and mix on site. I have Delavan's to apply chems and a high volume rinse pump!
Works for me...
The van is an AWD 4.3 V6 and it does fine. I don't haul heavy liquids!