If you have eliminated the obvious causes of low water pressure (i.e. major leaks in pipes, or defective water system components like a pressure tank that will no longer hold pressure) the easiest and most economical solution is to install a water pressure booster system. This self-monitoring system kicks on when you turn a faucet on and stays on until you turn the faucet off, ensuring a constant, steady stream of water free from pressure and temperature fluctuations. This "no cycling" system is not only effective in increasing your low water pressure, it is also energy-efficient and thus a viable, economical solution for home water pressure problems. Homes at the end of municipal systems, homes with old pipes and homes with multi-stories that experience low water pressure problems can now enjoy normal water flow by installing a water pressure booster system. Reference Link: http://www.low-water-pressure.com/faq/how-do-i-solve-low-water-pressure-at-home.htm

Most modern shower heads are low-flow designs. The problem is probably not with the water pressure itself (unless it is low elsewhere in your home), but with the restrictor in the shower head that limits the flow. The filter screen in the shower head can also clog. Remove the shower head and the rubber washer just inside the threaded end fitting. Behind this you may find a removeable plastic insert of some kind. If you don't have an insert, you probably can't do anything with the shower head. The removeable piece will often look like a plastic washer with a hole that is much smaller than the diameter of the pipe. It may have a screen in front, behind, or attached to it. If there is any grit on the screen, clean it off. If the screen is attached to the insert, you may not be able to do anything further. You can cut the screen off, but you run the risk of debris in your water clogging the shower head. If you can remove the insert, rotate the end of a sharp knife in the hole and scrape away enough material to enlarge the hole somewhat. Reassemble the shower head and check the flow. If it is better, but still too low, repeat the process and enlarge the hole. I have done this before and it worked with the shower head that I had at the time. It doesn't work with all of them, but it's worth a look.

Sorry I hit the button one too many times

I live in South Florida and have a well. My pressure has always been bad. My wife and two daughters have constantly complained to me that they cannot rinse the soap off their skin or the shampoo out of their hair. I think that I have bought and tried just about every shower head that I could find in any home center or hardware store in Florida - and nothing worked. Frankly they were all junk. Finally I found the solution via an online blog and it was a company in Boston, Massachusetts named Water Management. Their website address is WWW.TAKEASHOWER.COM . They sold me a shower head that worked so well with my low water pressure that it almost felt like we had drilled another well. Unlike all the other shower heads I bought this one actually worked! If you are suffering from low water pressure you must visit this website. I only wish that I found this company 12 years ago when I first moved to Florida because I would have eliminated years of complaining and lousy showers for me and my family.