I've been using this system for a while now, great gear. Step one, clean it - remove all the salt and sand using the Salt Exterminator solution. Step two, finish it off with the Salt seal solution. Step three, the under-body spray (Chassis Seal) good gear, nothing like Fish Oil, protects really well, and the sand/ mud or salt just washes away. As per pic, I bought a 5l pressure bottle from Bunnings and use it via that as well to get up and into all those hard places under the 4WD. Boat trailer a...