do i need a P trap for bathtub drain

I had a new bathtub replacement , it is against rotten wood, and I was told the smell was because I need a P trap in the tub drain. It is connected with an pvc elbow type pipe under the pier and beam house . The smell is horrible and has affected many areas of life . I do not have leaks just a horrible smell. Is it because there is no P trap ?
Reply to

Site Timeline Threads

HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.