Making a Phal make new roots

[Maua]

Hi, I had a Phal given to me a year ago that had been
overwatered and rotted the roots. I cut all the rot out, let it dry off for a couple of days then placed what was left on some orchid mix in a pot standing in a saucer with stones in it. I watered it carefully and made sure the saucer had water to create some humidity -- and now it has sprouted roots and is showing signs of a new leaf. Hope this helps.