adding upstairs bathroom

[mmarcott]

Hi, I plan on adding a bathroom to an unfinished room upstairs.

I need advice on where to route the toilet, shower and sink drain. Also the vents.

The water supply will come from a nearby hot water heater supply. I plan on adding and additional electrical tank for the extra bathroom or possibly a whole house on demand unit.

Can the existing hot water tank drain be modified to handle the drainage needed for the new bathroom? etc etc

Also near by is the drain and vent pipe for the wash room.

Thanks,

 

[Bahco]

You would be better posting on a USA forum as we will not be familiar with your set up