Second brew, blow-off tube on airlock setup (with pics)

My second brew is a chocolate porter. Pitched the yeast (Wyeast American Ale 1056) Sunday at 7pm. The airlock was already showing a little activity an hour later.

This morning at 6:45 I found the airlock full of wort, and some wort spilled on the pail lid:


I cleaned the airlock and installed a tube / growler to work as a blowoff tube:


When I got home from work at 5pm today -- the blowoff tube was clearly a good idea!



My only question to go along with these pics is should I clean out / re-sanitize the blow-off tube at this point, or just leave it?

Thanks.

replace the solution but leave the tube unless it is getting clogged.