A wash station comprises a wash nozzle for cleaning an exterior portion of a probe and a basin allowing for waste fluid to be collected. The wash nozzle comprises a vertically-elongate cavity with side slits on opposing side portions. A fluid inlet port may be connected to a side portion of the cavity to provide fluid. Fluid may additionally or alternatively come from within the probe. The basin comprises an elongate body with an opened end to receive and secure the wash nozzle. One or more access slots may be provided on opposing side portions of the basin. The probe passes through an access slot or over a portion of the basin and through a side slit of the nozzle to enter the cavity for cleaning. A geometry of the cavity allows the wash nozzle to fill to a predetermined level while waste fluid flows out through the side slits.