My liquid tap broke off - I just leave a watering can underneath. There are fewer worm drownings now.
Our, er, mine now, has been going for about 5 years now. It got a lot of pampering at first; then I ignored it for six whole months, now I just chuck in my stuff. It goes a treat. You get much faster processing if you actually empty the bottom tray for compost uses every so often.
Top tip - cycle the bottom tray up and leave the lid off for a couple of hours before emptying so most worms flee down into the other trays.