This is a 500L 4.5- vessels brewhouse system with one 1000L HLT,
From right side it is Mash tun, Lauter + storage tun, boil tun, and whirlpool tun, hot water tank.
This configuration designed follow client demand. I think it can come true mult-batched brewing in one day, at least 4 batches in one day.
Notice the storage tun below the lauter tun, it can storage the wort in while time after filtering process, then go into the boil tun.
1000L hot water tank is necessary to supply enough hot water for mashing and washing grain.