Not knowing the age/size/configuration of your Plumbing or it's condition, I can only suggest what might be causes for your situation.
. Your pipes are old and the interior of the pipes have become narrowed by rust or corrosion.(over time sediments collect on the interior of your pipes and severely restrict the flow(volume). The older the plumbing the more chance this has happened)
. Your water supply pressure is too low. . A restiction in the shower head/diverter. . Corroded valves in the shower.(not fully opening) . Supply lines are to small to handle all the fixtures at one time. . Main supply line valve not open all the way. There is a multitude of things that could cause this situation.
.Taking off the showerhead. Turn on the valves, hot and cold, test one at a time, and see it there is sufficient water coming to the shower when the valves(upstairs and downstairs) are both open. This will identify if there is enough water coming up to the shower and if it is just in one side.(hot or cold)
If there is sufficient water flow: Clean or replace the shower head.
If not: . Check the sink/toilet water flow and see if they slow or stop running when the downstairs shower is running. If they too slow considerably, it is probably a problem common to the supply line to the upstairs. . Check your water lines(hot or cold) feeding the upstairs shower to see if it is large enough and tied into a line large enough to carry the demand.
You can also:
. Test the water pressure as near to the Main suppy line as possible.(outside hose bib) You can get a gauge to screw onto a hose nozzle for a few dollars at the hardware store.
Unless you have a Water Pressure regulator in line with the Main Valve, the water pressure should be the same at all outlets.
If you do have a regulator, the "presuure"(not volume) may be reduced after the Regulator but shold still be at a new equal pressure throughout the house. note:(Water Pressure Regulators help protect your fixtures from excessive pressure and surges. High pressure could cause leaks or failure of some units.)
The gauge may help you identify where a restriction may be located.
If the upstairs shower was added during a remodel, it's possible the supply lines were not properly designed to handle the extra water demand. This would require some plumbing renovation to bring it up to specs.
As a general note: Old 3/4" galvanized pipes after time can restrict down to pencil size or smaller inside. Even plug off completely. You know what that will mean...
Because your drain is blocked.
Same as upstairs BUT LESS drainage piping BUT more vent piping.
the pies are connected so when you turn on the shower the vaulve in the pipe going to the other shower might not be all the way closed thus causing it to leak
Gravity. Also- If someone takes a shower with the curtain on the outside of the tub this can happen.
The drain is plugged somewhat between the upstairs and downstairs. Need to snake the drains.
The main drain is plugged. Not completely, but enough that it is easier for the upstairs water to come out in the shower and floor drain instead of going out the drain.
All upstairs plumbing fixtures drain through vertical pipes in the walls, connect to the horizontal pipes under the house and continue downslope to the city sewer or your septic tank. A backup into a downstairs fixture from an upper one indicates that there is a blockage in the drain line under the house downslope from the one receiving the backup. In this situation when a upper toilet is flushed the water with refuse reaches the stoppage and backs up into the lowest fixture downstairs, usually a shower, a tub or in this case a sink.
Shower is water that is sprayed over someone. Plumbing is the fixtures and piping that supplies water in a building. Shower plumbing would be the fixtures that spray water in a bathtub/shower stall.
The drain from the toilet to the main drain is plugged and the branch to the shower is not. If the main floor toilet flushes, it is between the two toilets and not between the house and the sewer.
There is a main drain that runs from the basement through the roof where it is the vent for the system. If you look at the layout of the house, the upstairs bath is most likely over the downstairs one or the kitchen. If you look on the roof, you will see a 4 inch pipe coming through the roof that should be over the upstairs bath. The sink and shower drain into that and then to the basement and out of the house. Most likely the main stack is in the wall behind the toilet.
Handicap shower seats can be purchased from various plumbing retailers. The Plumbing Supply store has a big selection of shower accessories, which includes handicap seats.
You have air in the system you need to bleed it out. do you have a really old heater/ boiler. hot water heater need more info
There is a clog between the sink and the line to the street or septic tank. The sink is the easier path for the upstairs shower.
"Shower plumbing will vary greatly in cost depending on wether you are installing a new shower system, refurbishing an older system, planning to add upgraded features and fixtures, and if there will be tiling involved."
form_title=Shower Installation form_header=10813 What changes are going to be included with this shower installation?*= () Replace or move existing shower () Install a new shower (No existing shower) Plumbing fixtures*= () Yes - I plan to install new plumbing fixtures () No - I do not plan to install new plumbing fixtures Would this particular project be a part from a larger remodel?*= () Yes () No Tile*= () Yes - I plan to install new tile () No - I do not plan to install new tile Can you specify the type of shower you want installed?*= () Free-standing shower () Steam shower () Shower / tub combo () Dual shower
Shower pumps can be purchased from any store that sells plumbing supplies. One could try The Home Depot, Menards, or Lowe's. Plumbing contractors may also sell shower pumps.
You can find a repair guide for the plumbing of a shower on the following site: http://homerepair.about.com/od/plumbingrepair/Plumbing_Repair_DIY_Tips_and_StepByStep_Guides.htm. It is a very helpful resource.
in her humongous downstairs bathroom(: Did that help?
If the tub has a shower as well, the pipe from the faucet to the shower head could be leaking. You might also check the tube that comes OUT and fills the tub. It could be leaking back at the valve when you turn on the water.
Now, go upstairs. Scare the cat out of the shower by turning the water on. Now's the hard part: chase the cat back downstairs to the milk & she/he will follow you out & back to Charlie. William 11
Plumbing wholesaler or hardware store
The sewage pump out is installed downstream of a bathroom group from the upstairs plumbing Consult a plumber and/or the plumbing code. If you do this wrong you WILL regret it later. Keep in mind you are dealing with raw human sewage. Do it right the first time, for your own sake.
Since the home is two story a small indoor air conditioner will not be able to cool the whole house by itself. To get this home to be cool you will need to use a A/C system both upstairs and downstairs.
maybe he wants to see his downstairs