Water leaking into both front floors

I work at a auto glass shop and we get cars with leaks. Moldings, windshield, wiper pivots, fire wall harness, etc.... leak. You name it we have found it and fixed it.

Method 1

Sprinkle baby powder around or on the area in which you think the leak is coming ON THE OUTSIDE OF THE CAR. Then take compressed air and blow from inside the car. If there is a leak of any nature you will see the baby powder blow like a mad wind!! Then you have found your leak.

Method 2

With the assistance of another person roll up the windows, get inside the car and let them carefully drown the lower area of the firewall with water out of a hose. Work your way up the firewall slowly, on to the cowl, wiper pivots, then around the windshield. Start at the lowest point another words and work up. This will eliminate the lower sections one at a time. Don't just squirt it and call it done... let the water flow over things just like you're in a down pour of rain.

If you do this you WILL find your leak. Hope this helps.