Checking kayak for leaks?

I flipped my yak at launch this weekend.  After landing there was a bit of water in the hull.  What is the best way to check the hull for leaks?  Do I need to fill it up and see if it leaks thru the drive well or scuppers?  Let me know if there is an easier way.

Kevin

I found the leaks in my Tarpon by turning off the garage lights and shining a bright flashlight from the inside of the yak.  I was able to check all the scuppers and most all the seams.  The pin holes showed up great, so did all the thin spots.

Greg

How much is a bit?  I've had 2 cobra yaks and neither one of them was ever dry inside after a day of paddling, if I got less than a pint or so I was ok with it,

Of course a crack is a whole different matter than a little leakage, a crack may just seep a little then get a whole lot worse all at once.

Using the flashlight method worked good for me, didn't find any leaks, but did find that where the scupper holes met the bottom of the yak was very thin. 

SO with all that said,

Tell us what you find it may save someone else's day.

dale

Hey Kevin, my Maurauder almost always has water in it if it gets wet topside. The standing water around the hatches gets oil canned into the hull. Usually less than a pint or so, unless its a really gnarly day OTW.

I've checked for leaks by filling w/h2o on a dry driveway... PIA! 

What worked better was LIGHTLY pressurizing the hull through the drainplug with low pressure compressed air and spraying diluted dish soap with a spray bottle. Big bubbles are easier to see than trying to figure out where the water drop came from.

This was more than a couple of pints.  When I check the center hatch, the water in the low spot of the yak was more than a 1/4" or so deep. 

Thanks for the advise.  I think I'll try the flashlight method first. 

Kevin