I tried all of the less invasive stuff on mine. Super strong carpet cleaning suction machine- not even close. Remove a threshold trim plate and lift the carpet. Look at the bottom of the carpet, it’s partially rubberized. Now squeeze the pad…
I tried to shortcut the drying process. I made a bunch of spacers to hold the carpet and pad separated and blew hot air in between for about a day and a half. Not even close. Still soaked everywhere that wasn’t completely exposed to the air circulation. And by then it was starting to get moldy.
It actually doesn’t take all that long to remove the stuff holding the carpet and pad in place.
I hung my pad and carpet on the deck railing and it dripped for hours…
Once out, it was easy to find the source of the leak.