I have some time off work and I want to renovate my bathroom--which is
much too small.The bathroom is on the second floor of a two storey
house.The wall that the soil pipes(?) and water lines are in and come
up from the basement and feed the existing bathroom is also shared by a
small bedroom.My plan is to turn this small bedroom into a bathroom and
turn my existing bathroom into a walk-in closet (it shares a common
wall with my master bedroom).I would gut both rooms down to the studs
and then probably hire an electrician and plumber to do the wireing and
run the plumbing pipes.Then I would do the drywalling and tiling and
finishing work.The first step is to come up with a design and layout,
but before I can do that I need to know a few things about plumbing.If
I design my new bathtub and shower and sinks to be against the opposite
wall to the one with the plumbing pipes, is a plumber going to be able
to run the new water pipes and drain pipes across the room from the
second floor, or is he going to have to install them from the main
floor and remove the ceiling?I assume the drain pipes would be
installed in the second floor joists.The second floor joists would run
paralell to the new drain pipes.Or if I install the new toilet against
the opposite wall to where the soil pipes run, is a plumber going to be
able to run a drain across the room?( I dont know what kind of slope
they need on their drain pipes)If all of this is feasible, then I need
to know if it is going to add signifigantly to my costs to install all
of the plumbing fixtures against the opposite wall to where the
plumbing comes up from the basement.
Thanks for your help.
Lot of variables. Slope is 1/4" per foot.
You *may* be able to get away with using 3" PVC/ABS drain.
ASK your bldg inspector first!
The floor and subfloor has to come off, naturally.
And verify that the joists DO run the right way!
You WILL need a vent going up from the fixture bank.
That may have to go up the far wall and into the attic
to either a new roof terminal or to tie into the existing
One word of advice: If you run PVC/ABS, there is a very
good chance that you will be disappointed with the
sound of rushing water and drip noises following
every toilet flush to be clearly heard in the room below!
Either clad the PVC/ABS in sound deadener (not insulation!)
or substitute cast iron drain pipe.
This job needs a lot of thought by a competent contractor.
Since you are going to do it anyway, gut the rooms. Then you can see what
is going on with the existing plumbing and wiring and any other surprises.
Have some contractors come in and take a look and let them tell you what can
and cannot be done. As an electrician it is always a pleasure to see open
walls and ceilings. That way I know exactly what I am getting into and
don't have to make allowances in my price for unknowns. You can lock in
your final design after getting feedback from everyone and having explored
the inner walls, ceilings, and floors.
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