I came across the following dialogue in a text-book written by a non-native speaker. In the dialogue it says " In my hometown, water pollution is an important problem. There are a lot of factories and they pour their waste into the river."
Can we use pour here? I have looked it up and I couldn't find anything proper in my dictionaries. For instance, Longman gives this example The company was fined for dumping toxic waste in the sea. So can we use pour here or not?