Ace Pelizon Plumbing was called out on a leaking bathroom sink downstairs. Ace Pelizon Plumbing found water dripping from the pop up assembly. Possibly due to age and corrosion. Ace Pelizon Plumbing removed old pop-up assembly. Removed P-trap and removed old pop-up assembly. Prepped area for work. Install new pop up assembly checked for proper function and it is no longer leaking. Everything draining properly.