Mix washing soda or laundry borax (not detergent) in distilled water and use this to wet the stone (tap water contains corrosive chlorine, which accumulates in the pores of the stone). I keep a dishwashing soap bottle containing this solution handy. You need slurry, and if working the the blade doesn't create it, use a nagura to get things started. Continue to drip water on the stone to maintain the slurry at the right consistency so it cuts the blade without developing too much friction. If this doesn't work, get a different stone, because too much suction, if it cannot be controlled, is intolerable. Depending on your blades and sharpening style, some stones will work better than others.
Stan
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