I had an idea for building a mash tun out of a rectangular cooler and did some research on building a manifold, etc... but thought of a different idea.
Couldn't you build some sort of mesh basket, kind of like a deep fryer, to hold the grains, and then lift the basket out of the water to drain out? If the basket was almost as wide as the interior of the cooler, there shouldn't be much concern about not having enough room for the grains, right?
And then I'm sure I could figure out some way of propping or suspending the basket up above the level of the water to get the grains to drain (like to build some feet or something to let it sit on top of the cooler), and then I could batch-sparge by lowering the grains back down into a cooler-full of 170F water once the wort was drained.
Price aside, is there anything else that I should be concerned with in trying to tackle this kind of project?