Q:
Superior rune of water working?
If your initial heal skill brings you back already to full health, then you won’t see any additional healing from the runes listed in your combat log.
This is also the case with life-steal food, guardian’s virtue of resolve passive heal, etc… when you’re already at full health.
Try to test it with a lower heal skill after you let a mob bring your life down, you should see the superior rune of water’s additional heal in your combat log (690 + 0.5*Healing Power, at lvl80).