We water our orchids once a week. Let the water run through the medium until it is soaked. Fertilize once a month. We have about a dozen orchids blooming now and many of them are 5 to 10 years old. Ice cubes are a marketing gimmick as far as we are concerned.
We have raised orchids for years and had good success. Water the orchids once per week as a starting point. Flush water throughout the root system and do not get water in the crown (where the leaf grows off the plant).
Agree with previous answer. The quickest way to kill an orchid is to water with ice cubes. It is a marketing gimmick. A flowering orchid prefers a slightly warm (blood temp) water. Cold water will shock the plant and may cause blooms to die off.
I just replanted them a little over a week ago. I still mixed a little soil in with it. It was my way to make sure it doesn't get too dry. So far doing well. I've got a bloom going right now and it doesn't seem like it's in distress. I hope that helps.