Abstract: A basin including: a front housing compartment (1) in which there is a lower point (3) for collecting the organic material to be removed; an equipment compartment (4) at the back of the basin, connected to the housing compartment; a drainage device, in the equipment compartment (4), which includes an “overflow” pipe (6) fixed to a siphon (7); the drainage device being capable of moving down in order to operate the siphon (7); and, a partition (8) between the housing compartment (1) and the equipment compartment (4), the partition being capable of keeping the animals inside the housing compartment and letting the water pass into the equipment compartment.

Abstract: This invention relates to a basin capable of containing aquatic animals—especially experimental animals—which comprises: a front housing compartment (1) in which there is a lower point (3) for collecting the organic material to be removed; an equipment compartment (4) at the back of the basin, connected to said housing compartment; a drainage device, in said equipment compartment (4), which comprises an “overflow” pipe (6) fixed to a siphon (7); said drainage device being capable of moving down in order to operate said siphon (7); a partition (8) between said housing compartment (1) and said equipment compartment (4), said partition being capable of keeping the animals inside the housing compartment and letting the water pass into the equipment compartment.