It's going to work great, been using a similar design for a long time & many batches without any issues. Just be careful when you stir your mash that you don't dislodge the components, especially where the manifold joins the valve outlet. Are you going with slits or holes on the manifold? I did slits, lots of dremel activity but I'm very happy with the results. Only about 1.5l of dead space, so it's very efficient.