Moving Toilet, but soil stack is solvent welded

[BABYCAKES]

I want to move the toilet in my first floor bathroom and having stripped everything out, I have found out that the soil stack is solvent welded, so I cannot just spin the soil pipe around 180 degrees. What is the best way of replacing it with a push fit?

Will I need to expose and cut out the solvent welded soil pipe from the ground floor and replace it with a new soil pipe with a push fit boss pipe, branch pipe, and AAV in the bathroom? If so, can I just cut it using a multitool and solvent weld a collar and then the fit the new push fit stack?

Also is the existing AAV too low, as it is lower than the sink?

 

[HERTS P&D]

Yes, to all of the above questions.

Andy

 

[denso13]

Also is the existing AAV too low, as it is lower than the sink?

Some are ok in this position. Can you see if there are any identification marks on it?

 

[BABYCAKES]

Some are ok in this position. Can you see if there are any identification marks on it?

Center Brand CBAV110