I often feel a little
about repeating myself over and over, and/but I've posted a zillion times about how the prewash/presoak aspect of foaming is, *for me* secondary to the constant lubrication/flushing that the foamgun can provide if used "correctly" during the regular part of the wash ("correctly" meaning the way I use it, not that *that* is the only way to go).
The idea is "Dislodge and flush".
On a *really* dirty car, the foamgun is the only way I can wash marring-free (in the absence of a pressure washer). I let the dog-haulers (and sometimes even the Audis) get *filthy* between washes, especially in the winter, but wash-induced marring is pretty much a non-issue thanks to the foamgun (and, of course, the right technique
).
But that technique is critical and it only takes a momentary faux pas to instill marring. The foamgun is not, *IMO*, a means towards no-touch washing; it still requires mechanical agitation via BHBs/mitts/etc.
reparebrise said:
Not to mention that foaming does nasty things ot the environment(unless you have a reclaim mat).
Noting that I have the same EPA-sanctioned, commercial-code-grade drain setup in my home shop that I had at the dealership, even for regular folks who just flush it right into their sanitary line I don't see how foaming would be any worse than a regular wash method. And aren't most carwash shampoos pretty innocuous anyhow?
