The river typically gets if flow from the middle aquifer and half the of the years looked at had 5,5% or fewer days of flow in the range of 30-39 m 3/s.
Algengast var að áin sótti rennsli sitt í miðgeyminn og helming vatnsára voru 5,5% eða færri dagar með rennsli á bilinu 30-39 m 3/s.