How to Remove Shower Head

https://www.google.com suggests the following link:

https://www.hunker.com/12267493/how-to-clean-a-moen-shower-head

Quoting from link above:
How to Clean a Moen Shower Head By BRENDAN O'BRIEN

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Taking a shower could be hazardous to your health if you do not properly and regularly clean your shower head. According to a study at the University of Colorado at Bolder, your shower head may contain harmful bacteria. But not to worry, with some old-fashion vinegar, elbow grease and about 45 minutes, you can take a shower with peace of mind. Clean a Moen shower head while it is still attached, or remove it before cleaning.

• Volume 0%Detached Shower Head
  Step 1
  Remove the Moen shower head. This may require pliers or vice grips. If you use tools, place a towel or rag over the shower head to protect it from scratches and dents.
  Step 2
  Remove the cover of the shower head, if there is one. The cover may twist or snap off. Do not force it if it seems stuck. This is not a requirement. You can clean the shower head with still attached.
  Step 3
  Warm the white vinegar on your stove. Do not boil the vinegar. Gauge how much vinegar you will need by the size of your Moen shower head. You need to fully submerge the shower head in the vinegar.
  Step 4
  Pour the warm white vinegar in a bowl or bucket. Place the shower head in the bowl and submerge it in the white vinegar. Let it soak for 15 to 20 minutes.
  Step 5
  Clear the holes in the shower head with a paperclip or thin wire. Clear all of the debris from the holes. Dunk and rinse the shower head back in the vinegar.
  Step 6
  Rinse the shower head and cover with hot water. Re-install the Moen shower head and cover. Test the shower to make sure you have re-installed it properly. Attached Shower Head
  Step 1
  Fill a plastic bag with warm white vinegar.
  Step 2
  Place the bag over the Moen shower head so it is complete submerged in the warm vinegar. Place a rubber band or piece of tape around the stem, securing the bag to the shower head.
  Step 3
  Remove after 15 to 20 minutes. Take an old toothbrush and scrub off the mineral deposits and debris. Rinse off the shower head thoroughly with hot water and a wet cloth. Brendan O'Brien
  

The problem is that all shower heads sold now have to be low water volume. You can take the restrictor out and see if that helps. Look for a blue or white plug type insert in the fixture that has a slot on it. Pull it out and you should be good.
http://homeguides.sfgate.com/remove-water-restrictors-showerheads-27817.html
and http://www.ehow.com/how_5189790_remove-flow-restrictor-shower-head.html

U don't remove the plastic u stick them hole shower head down in vinegar and let it sit for a while, that will clean it out

Not sure how to remove it but another idea is that you can fill up a plastic baggie with the vinegar, place it over the shower head, and then secure it to the shower head pipe with a zip tie or tape. Then the shower head can be soaking in the vinegar without having to remove it.

remove the shower head. and if the water flows normal, its a clogged up shower head. if takeing a shower and the diverter valve goes bad. water will come out of the spout. check out shower head to see if its clogged. sometimes you can soak the head in a good cleaner and it helps it. but if its the showerhead thats plugged. you can always put a new one on also. good-day !

Hi kwbaker!
Assuming the cartridge is new and the water drips at both hot and cold settings, I would check your shower head. It is not uncommon for debris to collect in the screening there and clog the spray nozzle.

To check the shower head you'll need to remove it from its piping. Use two tools--I normally use an adjustable wrench and a strap wrench--to hold the wall pipe and simultaneaously turn the shower head counter-clockwise. The cresecent wrench grabs the hex-head of the shower head, while the strap wrench holds the chromed piping without scratching it.

Be sure you don't lose the rubber washer inside the pipe-to-shower head connection!

Once the head is removed, look inside it at the pipe side. You should be able to see into the mechanicals of the shower head--very often I'll see bits of rust or scale. Oftentimes its enough to rinse the pipe side of the head under a sink; in extreme situations it can be easier to replace the entire shower head.

To replace the shower head, use two tools in the same manner in which the head was removed: crescent wrench to turn the shower head, strap wrench to hold supply piping. This time, however, turn the shower head clockwise until it tightens snug.

Hope this helps!
--Joe

take the shower head off and check for obstructions then turn water on to check the flow through the shower pipewith head off. Most shower heads now have a flow restrictor in them that you can remove should be right there inside by the threads

Check water lines to shower and make sure that there is no blockage or water cut off to it. Valve itself could be bad also or blockage inside it.

I f it is a tub & shower unit the diverter may be bad or stuck in place restricting water flow. Some are push button on the valve or a pull unit on tub spout to send water to shower head.
Cut water off and remove to inspect for reason not functioning correctly.
Remove shower head to inspect for blockage. The srceen may be stopped up for the shower head. Remove turn water on and see if any flow comes out shower arm.

get some CLR which is calcium lime and rust remover.Unscrew it from the pipe on the wall with the water off and pour it where the water flows into the head and wait for it to drip out the jets.

Hello, Many shower heads have similar problems. (Very frustrating as you now know) The problem is the threads at the end of the (cheap plastic) shower neck are not flat. They are tapered (has an edge) - so it does not seat flush with the base of the shower head. Actually cuts around the rubber washer causing a leak.

What to do about it?

File the end of the neck some to create a flat surface. However, go slow. Be sure you can still screw on the shower head. Add a flat rubber washer in the shower head and plumbers tape on neck threads too.

Or Purchase a new shower neck that has a better design. The neck should unscrew from the front. Check and make sure you have an access behind the shower just in case you need to access the plumbing.

I replace the shower neck myself if there is an access.

Rob