Rob, I bought beefy stand from Jaybird (see pic above) and put the new false bottom (cut legs off) on top of it. Works like a champ now. I don't run the pump at full flow. Just a trickle is enough it seems. I keep an eye on the vacuum gauge. If it starts to creep up I know I'm about to get a stuck recirc. I suppose you could get a vacuum breaker but then you will suck in air and lose siphon. A gauge and beefy bottom should work just fine. BTW, you created all that vacuum because you did have a stuck mash.