[url]https://imgur.com/a/AUyfZ2C[/url] The joint is slightly dripping after I twisted the joint by accident. Can I try to pull it out, sand it, and re-glue it?

So in the picture you have the upper bathroom and the bottom bathroom I am not sure which one by code goes through the roof, the drain (purple vertical pipe) or the vent (grey pipe) Right now I am renovating the basement bathroom but the plan is to do the same with the main floor bathroom. On that floor the tub has the supply pipes and the drain in the middle of the room. I would like to later relocate those on the outer wall so the pipes running across the upper bathroom floor will have to move along the outer wall If you are experienced you can probably figure out what is under the floor in the basement. The street is south of the picture There is no framing behind the toilet sit, just insulation and drywall so there is a niche there where I could hide these vertical pipes if there is a way to reroute them that way Here is where I need help and suggestions. What is the best way to route these pipes at their upper and bottom side so that the verticals will not be close to the wall I can conceal eventual elbows above the floor at the bottom and below the floor at the top in some low profiles enclosures) I am asking about the effective way to do it What fittings to use and where to place cleaning outlets etc etc Not a plumber sorry if I am not using the best terms for this At the bottom of these two pipes there is PVC in the floor for the drain It looks like this Here is a schematic diagram 1,4-toilets 3,5 sinks 2,6 bath tubs/showers I am assuming the vent connects to the drain in two points located above the highest P trap on that floor Ideally I would like to relocate both vertical pipes in the niche you see behind the toilet, there is no framing there just insulation and drywall PS: I am reading about wet venting right now