are you sure it wasn't condensation?
happens when it's cooler outside and the owner buttons up all the vents and windows tight and turns the furnace on, along with all the breathing humans inside.
where exactly was the water coming from?
if it was forming on the inside of the canvas, that's condensation.
if it was along the seams or along the bottom border, then it would probably be something different.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC