Debit=1,8perkubik m/jam = …..liter/menit​

1m3= 1000 liter

1.8m3= 1800 liter

1.8 m3/jam = 1800 liter/ menit

1.8 m3/60= 1800/60

1.8 m3/jam = 30 liter/ menit