I have built a 16 vat melter. 10 6Kg and 6 25 KG vats. The others I have build have worked quite well. This one is not as deep due to a mold heater in the bottom. The problem is due to its depth, I have a 30 degree boundary layer at the pouring valves. Anyone have any expirence it Thermodynamics? I need to passivley move it down just a few inches. I am thinking baffles, but how high and low should they be? The other choice is moving the element down a few inches. That is a last resort due to the high tech epoxy tank lining! There is only 5 inches from floor of tank to valve pluming, I know, what was I thinking! If anyone is still with me, please submit your opinion!