Answer: inflow

AnswerCrossword Clue
INFLOW

Tributary stream

INFLOW

Type of pipe

INFLOW

Water's movement, at times

INFLOW
Lake volume increaser
INFLOW
Stream in.
INFLOWMouth of a feeder stream
INFLOWAmount received, as of cash
INFLOWInflux
INFLOWReceivables
INFLOWRising tide, e.g.
INFLOWOpposite of outflux