I have just found this thread and site, and it may be a dead thread but...
I just realized this morning that my STBD side (passenger) floor was soaked and the car stinks. I pulled up carpet where I could and it was literally deep water. I was shocked literally when i moved the green corrosion section of the fabric tape, and decided to get online to see what can cause this.
I have since pulled both arch covers above the front tires. I have pulled the drains and blown them down. I pulled all the plug drains along the outer edge of both sills on the car (three on each side) and blew them down. I pulled the hose off the cabin HVAC and blew it down, but did not pull it out of the firewall. I then went to check wetness of floor and it is all the way back to the STBD passenger seat (back row) and super damp. I think I should pull the seats and get it dried out. How do I pull them and do you all think that the gallon or so of water I got out of the front could have been the cause over time in my vehicle? It seems like so little water to show so much in the cabin.
What kind of dehumidifier would I buy for this?