I searched for these topics and got nothing. My question is whether WC has come far enough to leave a system unattended? Do you run your rig 24/7? I'm ready to ditch the noisy fans. How much life will a good pump give before it craps out? The pump I'm looking at is Laing DDC-2 Pump w/Petra'sTech DDCT-01 Delrin Top. I already have a kit picked out from Petra. But that's another thread.