I have been reading some on-line forums on homemade water filter systems to hook onto you garden hose. This is to give you a spot free rinse when washing your car. Something like this. http://www.patuned.com/forums/showthread.php?p=89423
Some use Borax to rinse with http://www.ehow.com/how_2280854_wash...ree-rinse.html
Anyone have any tips or tricks they use?
Could you soften your water by tossing a handful of water softer salt in a hose end sprayer to rinse? That seems too simple to work. But using salt water to rinse your car does not sound like a good idea. But they sell watersoftners to hook to your garden hose.