where there's muck there's brass

The phrase "where there's muck there's brass" is a colloquial expression commonly used in UK English, particularly in Yorkshire. The phrase suggests that in dirty or unpleasant work or situations, there is often financial gain or wealth to be found. It implies that engaging in hard, often unappealing work can lead to financial success or opportunity. The word "muck" refers to filth or dirt, and "brass" is a British slang term for money or wealth.