Saturday, Aug 09, 2014 at 18:22
The only way to get MOST of the sand out of nooks and crannies is :
Remove all underbody protection plates and clean off, refit.
These usually hold lots of sand and although you'd think it would bump off during normal driving, it doesn't.
High pressure (as in pressure cleaner) is only good for removing surface material.
Use a good high volume hose pipe, if nothing else available, then the hose at
home will suffice.
No nozzle, just flat out.
Get the vehicle on a slight slope, use the hose to start at the high end of the chassis, and work along letting loads of water flow through, work along access holes, and you'll see the sand coming out, then eventually the water running clear.
Turn the vehicle around and repeat the other way.
Give any tubes running across the chassis a blast the same way.
Do this to all your cross members, other gaps in hollow cross members, across the top of cross members, etc.
Do this for any gaps in under guard splash panels, mudflaps, other gaps.
Often it is better to remove mudflaps because so much can gather there, as
well as mud / dirt, so best to remove a couple of times a year and get really clear, ensure drain holes are unblocked.
I find tailgate holes allow dust and fine sand to accumulate, so I force water in there, lift tailgate up and down to rinse, drain, repeat until all clear, then allow water to drain with tailgate in closed position.
Sand isn't too bad, try mud and sand, it gets EVERYWHERE and dries like concrete !!
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