You are new to this,so I'll give you a pointer or two---That 'canister ' is a barrel trap---
They are trouble--plan on getting rid of that and using a 'P' trap---
Post a picture of what you have--there are several licensed plumbers here and a lot of home owners that have done exactly what you are facing.---Mike---
They are trouble--plan on getting rid of that and using a 'P' trap---
Post a picture of what you have--there are several licensed plumbers here and a lot of home owners that have done exactly what you are facing.---Mike---