onetime

Yep, I've used it on light colors and it worked well. Plus it doesn't have a chemical smell.

tonyb635

The drains for the front are on either front corner area (side). You can see the drain holes with the glass retracted and will probably need a light to shine in there. The rear I don't think you can see due to the mechanics of the roof. The water discharge area for the front is just in front of the lower door/fender area and for the rear its by the wheel area. If you are going to test them, then I would try and position the car so that the water would run in the area you are expecting and do one at a time until you confirm the water is discharging. Maybe use a small cup or something to have better control.