It is a shallow drainage lake, fed by the Rēzekne, Malta, Malmuta and Lisiņa rivers and several smaller brooks, with an outflow via the Aiviekste River into the Daugava River.
This is a small lake that receives water from the Rēzekne, Malta, Malmuta, and Lisiņa rivers, as well as smaller streams. It discharges into the Daugava River through the Aiviekste River.