Little water comes out my shower head when I take a shower, should I call a plumber, or is this something that I can fix myself?

If you are looking to replace only the shower head, you'll need two plumber's wrenches, a cloth, and Teflon tape.

First and foremost, read the install instructions that come with the new shower head...

After you clearly understand what the instruction's say, shut of the water supply lines for the hot & cold water.

Take one of the wrenches and apply it to the neck of the water supply tube coming out of the shower wall (a.k.a. goose neck or supply nipple, or arm, depending upon the design). It'll have male threads (the threads are on the outside of the fitting). I would place a cloth of some sort around it before placing the wrench on it so you don't mar the finish of the water supply tube.

Place the second wrench on the shower head assembly (which has the internal, female threads). and unscrew it by turning the shower head assembly counter-clock-wise (to the left) while holding the water supply nipple with the other wrench.

You need to do this, so you don't snap or deform the water supply nipple coming out of the shower wall- and/or possibly causing leaky damage to the fittings behind the shower wall.

To replace the shower head, you reverse the removal process- the only difference is, you wrap Teflon tape around the male threads of the water supply nipple before spinning on the new shower head.

Somethings to be careful of, and I can't stress this enough, DO NOT cross thread the new shower head onto the water supply nipple. You should be able to screw it on the new shower head by hand- where it is hand tightened- then using the double-wrench method that you used to take off the shower head, turn the new shower head an additional half to three quarter turns with the wrench, clock-wise; and I mean gently.

Here's a nice short video on the subject, illustrating my instructions: http://youtu.be/fiv4Zq9v4co

Can you take a picture and post what you have?

He put the wrong faucet in the cold-water side.. There may be a way to change the direction without changing the faucet... but, if there is, I don't know about it... I think you need to make the plumber come back and fix it right.. I had that problem in my shower after a plumber worked on it.. I almost burned myself to death trying to adjust the temperature.

One rule I live by: more parts, more problems. Sounds to me that the plumbing/valves were not insalled properly. If you hired a profesional plumber, have them fix it. I am a licensed profesional plumber and I offer a 1 year warranty on all my work. If the contractor did the work and does not hold a plumbing license, that person is still responsible and may have to suffer legal consequenses.

My first suggestion is to have the installation plumber return to adjust the faucet to function properly

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

The Shower Valve is regulated to give only 2.2 gallons a minute. If you have the shower head off test how many seconds to get an approximiate gallon running in the middle hot/cold position. If longer than 30 seconds either the stem in the valve is clogged or the water lines to the valve are too small or kinked.

Phil

You are using a low flow shower head. you probably own the 250/2400 they have activation rate of .8gpm. If your shower head is low like this, your unit will deactivate. Higher flow shower head is a fix, or pull the aerator out of the shower head you have now might help.