ok, two questions...
should the slots in the manifold face up or down? a german book i have states that they should face up in order to achieve a faster clear flowing result. also, that facing the slots down can lead to channel forming. the english book i have says they should face down, but without any reasoning.
second, (i may be going overboard on this one) can i maximize efficiency by varying the space between the actual slots in the manifold? what i thought was, that the flow nearer the drain of the manifold over a period of time would actually be more, thus depleating the mash in these areas faster of their solubles (assuming equal slot spacing). the areas further from the drain would then not be as thoroughly sparged. i thought i could offset this effect by spacing the slots further apart nearer the drain, limiting the intake in these areas. right now i have plans to cut at 10mm centers near the drain, graduating to 5mm centers at the furthest points from the drain.
anyone out there have further experience with such brainfarts?