Len, I dont think he's gotten the repair kits or the super lube yet. Only ordered yestarday he says.
While I was working today I looked at my solution tank to what the solution hose was doing and was also listening out for what noise the pump was making (without the vacs on), and no its definitely not normal whats going on in your video!! And we have the same pumptech pumps.
But as I say, i'm pretty sure its the cam bearing not having enough lube.