rated excellent on 
Glycerin smoother for SASAKI balls to prevent damage and to restore the properties of the valve.
Before inflating the ball, lower the needle of the pump into the vial and moisten it. Insert the needle into the center of the nipple strictly perpendicular. Due to greasing, the needle slips better and doesn't scratch the micro fibers of the rubber. After inflation, it is recommended to squeeze the ball valve with your fingers evenly from all sides to accelerate the sealing effect. Immediately after pumping, a small loss of air is possible, but within 1-2 minutes the liquid thickens and blocks the leaked. Development of 2017. Greasing helps in most cases, but with a heavy valve wear, 100% result is not guaranteed. Recommended by the manufacturer for both new balls, and for the repair of Sasaki balls, used. Mandatory use of smoother is prescribed by the manufacturer's warranty.
Before inflating the ball, lower the needle of the pump into the vial and moisten it. Insert the needle into the center of the nipple strictly perpendicular. Due to greasing, the needle slips better and doesn't scratch the micro fibers of the rubber. After inflation, it is recommended to squeeze the ball valve with your fingers evenly from all sides to accelerate the sealing effect. Immediately after pumping, a small loss of air is possible, but within 1-2 minutes the liquid thickens and blocks the leaked. Development of 2017. Greasing helps in most cases, but with a heavy valve wear, 100% result is not guaranteed. Recommended by the manufacturer for both new balls, and for the repair of Sasaki balls, used. Mandatory use of smoother is prescribed by the manufacturer's warranty.