THE PLANNING DESIGN AND CONSTRUCTION OF A HOME IN JAPAN
It’s good that the pipes are elevated. The most common difficulty with basement plumbing is reaching the drain line without the need to pump up the system. Things work way easily if plumbing can drain normally, by gravity, to the septic tank.
Thanks for your comment. So far no problems with the plumbing or septic system. If anything occurs, we will have good access to the pipes.