All these ok and natural?
when the water level is low
when the water level is high
when the water level is down
when the water level is up
when the water level goes down
when the water level goes up
when the water level rises
when the water level climbs
when the water level increases

Question

All these ok and natural?
 when the water level is low
 when the water level is high
 when the water level is down
 when the water level is up
 when the water level goes down
 when the water level goes up
 when the water level rises
 when the water level climbs
 when the water level increases

Answer

Excellent! Well done! I give you 5 *****

Answer

Perfect :)