Fortunately, no. If you allow me, I will give you advice. Previously, there were several moments with pipes, and a friend taught me that in no case should you throw wet wipes into the sewer. I just know that some people do it. You should know that this moment should be avoided. As for the rest of the points, you can always rely on those people who understand what they are doing - write or leave a request here https://pomplumbing.ca/riser-and-zone-valves-replacement/.