When do you turn down profitable plumbing work to protect your team and reputation?

Leaving money on the table and walking away from it feels like a chop in the throat because the whole idea is to make money or is it? That’s how I used to think but building a solid reputation of doing quality work and being dependable. Will pay 10 times that little money you think you missed because all money is not good money as they say. so stretching yourself thin to chase every dime will leave you vulnerable and weak.