what could be causing small amount of water leak from my radiator or overflow ? on 1995 Toyota Camry

yesterday I tighten the pit cock a little..only about 16 ounces of water/antifreeze leaks at a time..there is no water or antifreeze splashed on the motor..the only sign of liquid is along the frame of the front of the car where the pit cock is..no signs of over heating lately..last summer it did get warm once and I added water and the problem was solved..when it started to get cold I drained some water from pitcock and added antifreeze..I am wondering if I might have a damaged pitcock or I may need to change thermostat, even though it has not got warm..I can't find any hose leaks either..Any suggestions would be helpful

by in Cincinnati, OH on December 14, 2012
4 answers 3 comments
ANSWER by on December 14, 2012
i would check the radiator all around maybe has cracked or pressure tested to find any leak.
COMMENT by on December 14, 2012
I have noticed some bit of water/antifreeze I think is seeping out the seem a bit at bottom of radiator..do you y\think its possible to flush the system out and then add Barr's stop leak with new antifreeze and water and possibly it would seal ? ..it leaks less than a few ounces not a 16 ounce leak..drove it today and very little leaked out ..so little I could not add any antifreeze
ANSWER by on December 14, 2012
you need to have your cooling system pressure checked to find this leak...
ANSWER by on December 14, 2012
Unless you want to spend a lot of money, DO NOT DRIVE CAR until you have the cooling system pressure tested for a leak. You have a leak!
ANSWER by on December 14, 2012
poss bad radiator cap running down radiator
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COMMENT by on December 14, 2012
I have noticed some bit of water/antifreeze I think is seeping out the seem a bit at bottom of radiator..do you y\think its possible to flush the system out and then add Barr's stop leak with new antifreeze and water and possibly it would seal ? ..it leaks less than a few ounces not a 16 ounce leak..drove it today and very little leaked out ..so little I could not add any antifreeze nothing leaking down radiator cap
COMMENT by on December 14, 2012
no it won't work, if noy replaced the tank will blow apart.radiators are cheap now days approx 150.00 then puy it in.problem solved