Originally Posted by orchid126

You didn't say what kind of plants the orchids in bark are. You might consider using the skewer method of watering. Get some shishkabob skewers from the grocery store. Put one in each pot and trim it down and leave it there. The next time you go to water, pull out the skewer and touch it to your cheek or lip. If it's a phal, the skewer should be slightly damp before it needs water. If it's a cattleya, the skewer should be almost dry, as cattleyas like to dry out. If it's an oncidium, the skewer should be slightly moist, as they like lots of water. How wet or dry the skewer is before you water will depend on the type of plant it is.

I started using this method five years ago and have not lost one plant to over watering.