Tumbling tube settings

Thank you Joyce and Marta. Water in the garnet sand! How simple!
John, your filigree pieces are so lovely and delicate. Thanks all
for the advice and the picture. One more thing. If I tumble a tube
setting, am I going to have a nightmare in trying to set the stone?
The stones are 1.5, 2.5 mm. Thank you in advance and once again,
thank you so much for this great forum. Addy