Whatever looks fresh for resale , he'll not have to live with it. I got an old boy to paint a house I sold in my twenties, spent a fortune on top notch paint house was finished , looked great went in , saw this water sloshing about in the tub and a load of unopened tubs , said wtf is that he ah ... I've saved you a load of paint I watered it right down, house was algae green about 3 months after I'd sold it .... I'd left the tubs there so maybe they could repaint .