Having issues with BR 0.4.3a active cooled reactor and turbines steam/water levels...

Hey all, have a custom modpack similar to FTB Infinity but without all that sissy magic stuff in it. :D Anyway, first time trying out an active reactor with 4 turbines and I'm having issues getting them to stabilize. Basically, my steam and water levels are constantly fluctuating, as is the steam production and overall heat level on my reactor. I have all 4 turbines set up to vent excess steam, but when I close the vent valves they all just spin down? I though the water was supposed to be pumped back through the turbine fluid output port? I had the ports directly in contact, from reactor fluid output directly to turbine fluid input, and vice versa, and had this issue so I swapped to using all tesseracts and it has the same issue. I could have sworn I have seen stable setups using both. Any one got any ideas? Do I need to use an active pump like EU transfer node or EIO liquid conduit to move the steam and water back and forth? I though the port did that though? shrug