My bathtub/shower has low water pressure all others are fine in house even the sink in the same bathroom has good pressure.
I removed shower head and knobs. Pressure is still low coming out of copper that stick through walls?

What brand is your shower valve? One handle or three knobs? About how old? Back to you, Tom

Its three years old, american standered threre are two knobs, a spikgot, and a shower head

Is your pressure equally bad for both cold and hot? Usually one or the other is strong, most frequently the cold

Same pressure with both hot and cold on

When did this start? Has any other plumbing work been done around that time?

Its never been great since I built the house. Its gotten worse over the past year or so

If the shower head is as bad as the spigot I'd suugest taking the mixer apart. There are many American Standard mixer with shower diverter. American Standard, Shower & Tub Diverters at PlumberSurplus.com If we can pin it down I can tell you how to pull the cartridge to clean and hgrease it.

Not sure if this helps or not but this is the make and model num.


Specs:ADA Compliant : No
Assembled Depth (in.) : 7.00 in
Assembled Height (in.) : 3.18 in
Assembled Width (in.) : 7.67 in
Bath Faucet Type : Combo Tub & Shower
Built-in Water Filter : No
Ceramic disk valves : Yes
Collection Name : Cadet
Color/Finish : Chrome
Color/Finish Family : Chrome
Connection Size : 1/2" IPS
Diverter type : 1 way
Faucet type : Bath Faucet
Flow rate (gallons per minute) : 2.5
Handle type : Lever
Handles included : Yes
Integral stops : No

Item Weight : 4.5 lb

Number of Spray Settings : 2
Plug Included : No
Required rough-in valve included : Yes
Showerhead face diameter (in.) : 2
Showerhead type : Fixed mount
Spout Reach (in.) : 4.75 in
Style : Transitional

This American Standard Cadet Double-Handle Tub and Shower Faucet in Chrome features traditional styling with a focus on practicality and function. The classic design easily blends in with existing bathroom features. The polished chrome finish won't tarnish, scratch or peel. Washerless drip-free ceramic disc valves help maintain smooth operation.

2-handle design features a lever for hot water and a lever for cold water
Washerless drip-free ceramic disc cartridge for smooth operation and long life
2-function showerhead allows you to customize your shower experience
Chrome finish looks neat and clean
Finish won't peel, scratch or tarnish
Designed with soft lines and curves for simple elegance
Classic styling easily blends with existing bathroom features
Showerhead maximum flow rate of 2.5 gallons per minute for efficient cleaning
1/2 in. connection type
1-way diverter
MFG Brand Name : American Standard
MFG Model # : 3275
MFG Part # : 3275

So this is your valve Shop for American Standard Cadet Double-Handle Tub and Shower from The Home Depot right? No cartridge on this model so you need to shut down your main supply, bleed off the water pressure and disassemble the stem