hmmm... 2 pails of water only? i wash my car at those hdb washing area, everytime use about FOUR 20cents coins, which is about 6 pails of water...
not that i want to waste money (or water), but i've heard that if you use those Wash&Wax cleaning agent with lots of soapy and bubble thingy, and if you don't rinse off properly the soap and bubble thingy can corrode those metal parts of your car...
that is why at petrol kiosk car wash, the people always ends the washing with high-pressure jet water to spray, ESPECIALLY spraying the gaps between doors and the main chasis, the boot and the main chasis, etc etc..., just to make sure there's no soap left.
in fact, i only wash my car with those Wash&Wax cleaning agent once per month, as i feel it's way too strong for the paint of the car, and my extra 20cents coins is used when i connect a hose&spray to the tap to achieve that high-pressure effect (though insufficient, hence i use so many coins just to make sure...).
on every other day, i just use 2 pails of water and clean off all debris and dirt without using the cleaning agent...
hmmm....
