I use a wash bay somewhere most times.

in the warmer months I drive over a sprinkler haha

 

Our car washes here, don't use recycled water, so I use the undercarriage wash every time I go through.

 

There are attachments that your hose attaches to and the attachment will roll under the truck/vehicle and spray upwards. You can even attach bottles of whatever soap/additive you want, inline.

Amazon.com : VIGRUE 2-in-1 undercarriage Pressure Washer Attachment,24 Inch Pressure Washer Water Broom with 7 Nozzles,Under Car Washer Cleaner with 3 Pieces Extension Wand,4000 PSI,Orange : Patio, Lawn & Garden

Amazon.com: RIDGE WASHER Pressure Washer Undercarriage Cleaner, 16 Inch Undercarriage Washer, Pressure Washer Under Car Cleaner with Straight Extension Wand, 4000 PSI : Patio, Lawn & Garden

 

I don't anymore. If you've coated it, then just leave it alone or maybe spot treat it in the spring.

 

My truck's entire undercarriage is already undercoated with WoolWax. I sprayed a fresh coat on a few months ago, around mid Fall. However, being that I live in RustBelt NJ where they salt & brine the sh*t out of all the roads in the Winter (most of the time unnecessarily of course...) just knowing that I'm leaving all of that corrosive garbage under there, WoolWaxed or not, urks me very badly.. Even tho nearly every single centimeter of my undercarriage is WoolWaxed, I can't help but feel like all that salt & brine hanging out under there HAS to be eating away at the frame/surrounding areas aleast to some extent.. If the roads were treated, I try my best to rinse off the whole undercarriage on the first warmer day that is above freezing but that process sucks.. Basically I'm laying there on my FREEZING concrete driveway spraying brutally cold water anywhere & everywhere I can reach under the truck as my fingers go numb from the cold water dripping back down the hose while I unintentionally get myself SOAKED from all the spray back in the upper 30°F/lower 40°F breeze... HATE IT! Lol.. Will the WoolWax actually protect well enough to prevent the negative effects of the road salt, atleast for the duration of the nasty Winter months?? Atleast until the temps get up near the 50's...

 

Undercarriage pressure washer would probably be the best option, I would imagine.

 

i use a loofah and my grundle is SPOTLESS.

 

HaHaHa - couldn't stop laughing.
Best post of the thread!!

 

I use one of these on the pressure washer. It works great. I got it cheap off amazon or eBay years ago.

 

We use to park our mud trucks in the pond. Come back the next day and drive them out.
Then set a sprinkler under them for a few hours.

Does that help?

 

I saw where a guy made his own out of PVC pipes/fittings for use with a garden hose. I might try making my own.

 

Guess I've got it rough....I have a 3.5' wide x 6' deep x 22'(YES, 22 FT.!) long pit that I can do a LOT of these sort of things...it's inside of my heated/air conditioned/stereo/fridge/knotty pine siding walls "work/play" area!!

 

Set up a garden sprinkler under it and then move it after 15 minutes.

 

Might be ok during WARM WEATHER....but I don't think you'd wanna do dat in this COLDAZZ SHIT!!

 

^^^^ this. Wouldn't want to be doing that today. -6*F with wind chill about -20*F. Supposed to be colder tomorrow. I'm not leaving the house. 🥶

 

I live in a small town that uses 100s of tons of salt in the winter. The street department does not know anything about calibrating the conveyor and spinner on the trucks. A few weeks ago the truck came by my house and threw a line of salt up against my garage doors which are 30 ft away from the street. When the streets finally dry off, they remain white for days from dried salt and there's salt dust on everything.

Several of the local car washes included an undercarriage wash so I use those frequently. When I want to really clean the undercarriage I fire up the pressure washer and spray bar (like the ones shown above).

 

Hmmm... Can't say that doesn't make sense bc it totally does.. I can definitely be on board with ur train of thought for sure.. From now on I'm going to try backing off a bit from hosing down the undercarriage as ofter as I've been, & just do a really good'N'thorough soap & rinse job once it starts to warm up some at the end of Winter/beginning of Spring when I can be confident that nomore salt/brine is going to be dumped all over the roads again until next Winter...🤷‍♂️ I'll just need to make sure that I also do a very thorough job on re-applying the WoolWax to the entire undercarriage/frame (inside, all around, etc...) when Fall rolls around.. & I'll also keep a couple WoolWax rattle cans on hand too just incase I happen to stumble across an area that needs some touching up, like if I notice any uncoated or washed off areas while I'm under there doing an oil change or something ya kno?.. 💪🤘

 

Embrace the suck .... builds character!

 

[QUOTE="Los_Control] Embrace the suck .... builds character! [/QUOTE]

Didja' learn that from MONICA???