I got a bathroom. I'm adding a second downstairs right below. I know the
ideal setup would have a source manifold and separate feed lines. Is there
some kind of guide for the cheapskate ? Copper is currently used, although
I still have to reroute existing pipes.
Oh, it'll "work", just be annoying forever with slow-filling toilet, low
pressure/flow at the sink, etc., any time there's demand in the other
bath simultaneously. It's trivial to fix at the beginning but a
lifetime of aggravation thereafter if don't.
And for the "cheapskate" in the original post, the 1/2" there can be
salvaged and re-purposed for the runs in the new bath after the reducing
tee where it taps off the new main run. And, the 3/4" new run can be
plastic with transition to copper if _that_ concerned about cost.
On 03/09/2015 1:12 PM, firstname.lastname@example.org wrote:
Unless, of course, it's already occupied and you're in a hurry... :)
But, in general, I agree unless it's a household w/ a large number of
occupants it's generally simply a convenience factor probably as high a
reason for multiple as the actual contention in time. FIL raised family
of eight girls with only one for quite a number of years before finally
putting in a small second one in the basement...
We can't use the word negates, it's racist.
Second WC might be used if you're on the other
floor when nature calls. Oh, no, that's racist.
Offensive to people of flower.
"Well, officer, flower power people are usually
pacifist, but this guy walked up and called me a
nature to my face!"
Is this offense getting a bit out of the realm
Christopher A. Young
learn more about Jesus
Bet it's not also on a main feed to a full bath _both_ of which are fed
only by 1/2".
The bath itself will be fine if the flow to it's main isn't restricted.
How good/bad it will be will, of course, also depend on what the other
bath actual configuration is, but I'd err on the side of larger rather
than smaller unless given further details.
It can't cost that much; he can even likely reuse virtually all the
existing 1/2" anyway...
On Monday, March 9, 2015 at 2:16:42 PM UTC-4, dpb wrote:
Well of course not, but I don't see any evidence that the OP is
proposing sharing that new line either. In my house, the half bath
uses 1/2" pipe that taps off the 3/4" line that serves the master
bath. MB has two sinks, toilet, shower and tub.
At the other end of the house, I have a long run, at least 25ft,
that uses 1/2". It feeds the kitchen sink, dishwasher, utility
sink, the washer and a hose bibb. No problems there either.
The other full bath, upstairs, uses 3/4"
It all works fine.
I don't know where the reusing is coming from. All I saw was that he's
putting in a new bath in the basement.
His second posting (followup to his own first) says "Still going to use
the 1/2 feed from regulator and hot water tank." Seems pretty clear to
me his plan was to simply tap onto the existing 1/2" feed for the second
by cutting in a tee. I'm saying run new 3/4" to that point and reducing
tee there; can reuse that 1/2" run he replaces of whatever length out of
the 20-ft it happens to be. He didn't say about the cold supply but
same idea applies.
Precisely. And, as I reread his posting I'm guessing the idea was to
tap into the cold comes from the point after the regulator and the hot
from the existing run so it's very possible both H&C are affected.
Either way, the correct way that can't cost much actual cash outlay will
be to make it 3/4" to the split-off and will be "garonteed" to be
adequate whereas other may/may not, depending...
Because, as you note, unless there's another water heater it's got the
kitchen as well to supply besides the bath. It would have been marginal
w/ a dishwasher now methinks altho again there's more we don't know than
what we do...
If it's like my house it IS. 1/2 bath on main floor, full bath
upstairs AND the kitchen, all on one half inch line. Laundry too. 3/4
inch from the meter to the softener, 1/2 inch from the softener to the
water heater and to the cold water feeds.. Cold hard water to the
toilets and one tap in kitchen, cold soft water to kitchen and both
bath sinks, and tub. Cold hard water to outside hose bib.
Sum total of water supply lines in the house.
On Mon, 09 Mar 2015 18:10:34 -0400, email@example.com wrote:
I have one bathroom. The feeders to tub and sink are 3/4".
About 5' runs.
The kitchen gets 1/2", about 4' runs.
The washer gets 1/2", about 6' runs.
The garden hose valves are both 1/2", short runs off 3/4".
It was done to Chicago code in 1960. Galvanized.
There are no problems except when one valve is opened the others slow.
That's normal to me.
Some of that is because the pipes are getting scaled up.
When I had a 2-flat with 2 full baths, 2 kitchens, 2 washers
everything was on 1/2" feeders. Chicago code circa 1928.
No problems, except when one valve is open the others slow.
If that's not acceptable, go with 3/4". It'll slow less.
Second full bathroom. The use of both would be very occasional. I'll have
to think about this a while and look things over. Things do slow down when
any two things are being operated. The house I grew up in didn't have any
fancy piping. I never really noticed a huge problem. The regulator might be
a factor too. I know air compressors regulators limit flow if undersized.
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