Found my operation manual...
It's got 4 different wave programs, gentle, rolling, turbulent, and alternating (sequential 4 hr periods of the previous 3). It's got a Marine and a Reef mode for which the feed switch suspends flow for 30 min and 10 minutes respectively. Maybe others may have a better source, but I got mine from Marine Depot for $109. (not incl shipping). My corals seem to love it. As suggested in the manual, I've got 3 powerheads - positioned hi, low, and middle. Got two that are positioned to allow the flow to hit each other head on creating flow in places that I couldn't get a direct flow into. I've had it for a month and I love it. 3 PHs keep the dead spots (at least those in fron of the rocks) almost non existent.
"Life may not be the party we hoped for but while we are here we might as well dance!"