Quote Originally Posted by ChuckP View Post
This person has a single tray method for large prints: http://www.heylloyd.com/technicl/single.htm
I've never tried it but something to think about if space and tray costs are a problem.
I've seen that link and appreciate his thinking. It's led me to evolving that a bit though - I've bought the parts but haven't assembled it yet.

Why not integrate such a large tray into a table, and add a drain to the bottom of the tray? Pouring out a 30x40x6 tray (or whatever it was) sounds like a mess to me - especially doing it for every print. A bathroom sink drain kit (the kind that uses a rubber plug vs. a drain lever) with an extra rubber washer, mounted in the tank, with catch buckets under it seems much more convenient. You can easily extend the tailpiece (they essentially get 'extended' by your trap in their proper use) or even angle the drain to wherever it's needed. You could get all fancy and add a PVC ball valve, but the rubber stopper seems fine to me.