Your worm bin should be as a moist a wrung out sponge. A great way to find out if the moisture is just right is to do a squeeze test. Grab a handful of the castings in your bin. If water drips, your bin is too wet. If the castings do not stick much to your hand, it is likely your bin needs more water.
With the changing temperatures moving from summer to fall, be sure to keep an eye on the moisture of your bin. To make adding water more convenient, our Master Composters recommend keeping a spray bottle nearby. It is also great to moisten any paper you add to your bin before adding to keep your moisture levels up.
photo courtesy of http://growinggroceries.wordpress.com
Thanks for the post! Our verminator got too moist and was super smelly! We had to dump it (plus the addition of many, many spider eggs! ick). We will try it again I think. Here’s waht happened: http://daisypatchfarm.com/2010/02/14/dont-read-if-youre-sk-worm-ish/