To help work out the bubbles vibrating the table is the key, otherwise you could get large number of air bubbles on the downward surface which will eventually be the top. I have included a link in the tools section of this document for a purchased table vibrator. (Do this at your own risk) One DIY way you can make a table shaker is with an old treadmill motor. The nice thing with treadmills are the motor controller system is variable. Meaning you can control the speed of the motor. One additional thing to add is a weight on one side of the motor to put the motor out of balance creating the vibration when it turns. PLEASE, PLEASE, PLEASE be careful, you can tear apart the table and mount by doing this and increasing the speed too high.