I'm preparing to build a sink for my darkroom. It will be 8'x30" and constructed out of 3/4" birch plywood.
I would appreciate comments about the amount of "slope" I should be designing into the floor/bottom of the sink so it can drain properly. I'd like to go with the minimum slope possible so my trays aren't cattywampus. I'm also wondering if you have your drain is "in sump". In other words, at the absolute low point of the sink so all liquids runs directly to the drain? In studying various plywood sinks online, I see where some drains are located in a corner. Some centered in the middle of the sink. Some are centered at on the end of the sink. Very few look like they are actually "in sump". It appears at least some water/chemistry needs to be squeegeed to the drain. While I realize the drain location is dictated by where the sewer pipes are in the wall, I am mainly interested in what works best. For my darkroom, the drain will be located at one end to facilitate connection to the existing plumbing system.
I'm not trying to overthink the room or make this too complicated, but birch plywood is expensive and I'd like to get this right on the first try.
All comments and suggestions are appreciated. Please share photos of your sink if reasonably possible.
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