Few things are as frustrating as stepping into a shower that barely produces a trickle, or turning on a faucet only to watch water dribble out when it should flow. Water pressure problems are one of the most common plumbing complaints from homeowners in Central Florida — and they range from simple fixes you can handle in an afternoon to signs of a serious underlying plumbing issue that needs professional attention.
What makes water pressure problems tricky is that both too little and too much pressure can damage your home. Low pressure is the more obvious nuisance, but high water pressure — which many homeowners never notice because everything seems to be working fine — quietly stresses pipes, joints, and appliances until something fails.
This guide covers the most common causes of water pressure problems in Florida homes, what you can check and fix yourself, and when the problem warrants a professional assessment.
Understanding Normal Water Pressure
Water pressure is measured in pounds per square inch, or PSI. Normal residential water pressure falls between 40 and 80 PSI, with most plumbing systems designed to operate comfortably around 60 PSI. Pressure below 40 PSI is generally considered low and will be noticeable in daily use. Pressure above 80 PSI is considered high and puts excessive stress on pipes, fixtures, and water-using appliances.
You can measure your home’s water pressure with an inexpensive pressure gauge that screws onto any outdoor hose bib. This is a worthwhile first step before troubleshooting any pressure issue because it tells you immediately whether you’re dealing with low pressure, high pressure, or pressure that’s within normal range but feels wrong for another reason.
Causes of Low Water Pressure
Partially Closed Shutoff Valves
This is the most common and most easily overlooked cause of sudden low water pressure — and it’s the first thing to check. Every home has at least two main shutoff valves: one where the water supply enters the home from the municipal line or well, and one at the water meter itself. If either of these valves is not fully open, it restricts flow to the entire house.
Shutoff valves are sometimes partially closed after plumbing work and not fully reopened. They can also shift slightly over time, particularly older gate-style valves that have been opened and closed many times. Check both valves and confirm they are fully open before investigating further.
Mineral Buildup Inside Pipes
As discussed in other guides, Central Florida’s hard water deposits calcium and magnesium inside pipes over time. In older galvanized steel pipes especially, this scaling can reduce the interior diameter of the pipe significantly — sometimes to the point where flow is visibly restricted even when the water supply pressure from the street is completely normal.
Mineral buildup as the cause of low pressure is typically characterized by pressure that has declined gradually over months or years rather than dropping suddenly, pressure that is low throughout the entire house rather than in one location, and white or yellowish crust visible around faucet aerators and showerheads.
Cleaning or replacing aerators and showerheads is a quick first step. If removing those components restores pressure, the buildup was in the fixture rather than the pipe. If pressure remains low after replacing aerators and showerheads, the restriction is further inside the plumbing system.
Clogged or Faulty Pressure Regulator
Most homes connected to a municipal water supply have a pressure reducing valve — commonly called a PRV or pressure regulator — installed where the water line enters the home. Its job is to reduce the street pressure, which can be quite high, down to a safe and comfortable level for residential use.
PRVs have a lifespan of approximately 10 to 15 years. When they begin to fail, they can do so in two ways: they may stick in a partially closed position, causing pressure throughout the home to drop suddenly and significantly, or they may fail in the open position, allowing street pressure to pass through unregulated — which causes high pressure problems rather than low.
A failing PRV is one of the more common causes of sudden, whole-house pressure changes in Florida homes. Replacing a PRV is a job for a licensed plumber — it requires shutting off the main water supply and working on the main supply line.
Corroded or Deteriorating Pipes
Galvanized steel pipes — common in Florida homes built before the 1980s — corrode from the inside as they age. The corrosion narrows the pipe interior and eventually flakes off in chunks that create partial blockages at bends, joints, and valves throughout the system. A home with original galvanized pipes that is experiencing progressively worsening water pressure, discolored water, or rust-colored staining in sinks and tubs is likely dealing with pipe deterioration rather than a simple flow restriction.
Repiping — replacing the old galvanized supply lines with modern copper or PEX pipe — is the long-term solution. It is a significant project, but it resolves pressure and water quality issues permanently rather than requiring repeated interventions on a system that is failing throughout.
Municipal Supply Issues
Sometimes the problem isn’t inside your home at all. Municipal water supply pressure can drop during periods of high demand, during main breaks in the area, or when work is being done on the distribution system. If your neighbors are experiencing the same pressure drop at the same time, the issue is upstream of your property line.
Contact your local utility to report the pressure issue and check whether there is known work or a main break in the area. Municipal pressure issues are typically temporary and resolve once the underlying cause is addressed.
Shared Supply Line Problems
In some Florida neighborhoods — particularly those with older infrastructure — multiple homes share a supply line from the street main to their individual service connections. When demand is high, such as on summer mornings when everyone is showering and running irrigation simultaneously, the shared supply line can’t maintain adequate pressure to all homes at once.
This type of pressure issue is typically time-of-day dependent rather than constant, and it may have been worse in recent years if new homes or connections have been added to the same supply line. This is a utility infrastructure issue rather than a home plumbing issue, but your local water authority should be informed.
Leaks in the Supply Line
A significant leak somewhere in the supply line — either inside the home or in the underground line between the meter and the house — can cause noticeable pressure drops by allowing pressurized water to escape before it reaches your fixtures.
The sign that distinguishes a leak from other pressure issues is an unusually high water bill alongside the pressure drop, or the presence of wet spots in the yard along the path of the supply line, soft ground above the water line, or unexplained moisture inside the home near supply pipes.
If you suspect a supply line leak, shut off all water use inside the home and check whether the water meter is still moving. If the meter is moving with all fixtures turned off, water is escaping somewhere in the system and you have a leak that needs immediate professional attention.
Causes of High Water Pressure
High water pressure is less immediately noticeable than low pressure — in fact, many homeowners with high pressure think their water system is working great because the shower has strong flow and faucets fill containers quickly. But behind that strong flow, high pressure is doing real damage.
What High Pressure Does to Your Home
Pipes and fittings under sustained high pressure develop micro-cracks and joint stress over time that eventually result in leaks or bursts — often at the worst possible moment. Water heaters under high pressure wear out faster, as the temperature and pressure relief valve cycles more frequently than it should. Washing machine hoses — among the most common sources of catastrophic home water damage — are far more likely to burst under high pressure. Dishwashers, ice makers, and refrigerator water lines are all similarly stressed.
High water pressure also causes a characteristic symptom called water hammer — a banging or knocking sound in the pipes when a faucet is turned off quickly or a dishwasher or washing machine valve closes. If you hear banging in your pipes, check your water pressure before assuming the pipes themselves are the problem.
Failed or Missing Pressure Regulator
As noted above, a PRV that fails in the open position allows street pressure — which can range from 80 to over 150 PSI in some municipal systems — to pass directly into your home’s plumbing unregulated. If your home doesn’t have a PRV installed, or if the existing one has failed, this is the most likely cause of high pressure.
Installing or replacing a PRV is one of the most cost-effective plumbing upgrades a Florida homeowner can make. A functioning PRV set to approximately 60 PSI protects every pipe, fixture, and appliance in the home from the stress of excessive pressure.
Thermal Expansion
In homes with a closed plumbing system — which includes most homes with a backflow preventer or PRV — water heated by the water heater expands but has nowhere to go. This thermal expansion temporarily raises pressure throughout the system, which is why pressure that seems normal in the morning may be elevated in the afternoon after the water heater has been running.
A thermal expansion tank installed on the water heater absorbs this expanded volume and prevents the pressure spike. If your home has a closed system and doesn’t have an expansion tank, it should be added — both for pressure management and to protect the water heater itself.
Easy Fixes You Can Do Yourself
Clean or replace faucet aerators and showerheads. Unscrew the aerator from the faucet tip and the showerhead from the shower arm, soak them in white vinegar overnight, and reinstall. This resolves mineral buildup restrictions in the fixture itself and is the first step before investigating further.
Check and fully open shutoff valves. Locate the main shutoff valve where water enters the home and confirm it is fully open. Ball valves should have the handle parallel to the pipe; gate valves should be turned fully counterclockwise.
Test your water pressure with a gauge. A pressure gauge screwed onto an outdoor hose bib gives you an immediate reading of your supply pressure. This takes less than a minute and tells you immediately whether you have a pressure problem at the supply level or a restriction problem inside the home.
Install a showerhead designed for low-pressure systems. If your pressure is marginally low and not a symptom of a larger problem, a showerhead designed to optimize flow at lower pressure can make a noticeable improvement in shower experience without any plumbing work.
When to Call a Professional
When pressure is low throughout the entire house and cleaning aerators doesn’t help, the restriction or fault is inside the plumbing system and needs professional diagnosis.
When pressure drops suddenly rather than gradually, this points to a valve failure, a PRV failure, or a significant leak — all of which need prompt professional attention.
When water pressure is consistently above 80 PSI and no PRV is installed or the existing one appears to have failed, a licensed plumber should install or replace the PRV before the elevated pressure causes pipe or appliance damage.
When the water meter moves with all fixtures turned off, you have an active leak somewhere in the supply system that needs to be located and repaired immediately.
When water is discolored alongside pressure issues, particularly in older homes, pipe corrosion is likely involved and the plumbing system needs a professional assessment.
Our Leak & Plumbing Repairs service covers the full range of water pressure issues — from diagnosing the source of a pressure drop to supply line repair, PRV replacement, and pipe assessment. Rather than guessing at the cause, we identify exactly where the problem is and fix it correctly the first time.
Florida-Specific Considerations
Florida’s hard water accelerates mineral buildup in pipes and fixtures faster than in most other states. If you haven’t cleaned your aerators and showerheads in the past year, start there — it’s a quick fix that makes a noticeable difference and costs nothing.
Homes in Central Florida built before 1985 are particularly likely to have original galvanized supply pipes that are corroding from the inside. If your home is in this age range and you’re experiencing pressure issues alongside discolored water, a professional pipe assessment is worth scheduling sooner rather than later.
Florida’s irrigation systems place significant demand on residential water pressure, particularly in the early morning when irrigation runs. If your pressure seems low only in the morning and returns to normal later in the day, check whether your irrigation system is running simultaneously with indoor water use — and consider adjusting the irrigation schedule to avoid overlap.
The Bottom Line
Water pressure problems in a Florida home are rarely just an inconvenience. Low pressure is a symptom of something happening in your plumbing system that will likely get worse over time if not addressed. High pressure is silently stressing every pipe, joint, and appliance in your home until something fails. Neither resolves itself without intervention.
The good news is that many pressure issues have straightforward causes and solutions once you know where to look. Start with the simple checks — aerators, shutoff valves, a pressure gauge reading — and work from there. If the simple fixes don’t solve it, a professional assessment will identify the real cause quickly and save you from continued guesswork.
Dealing with water pressure issues in your Central Florida home? Contact Jitterbug Home Services today for a professional assessment and lasting fix. We serve homeowners throughout St. Cloud, Orlando, Kissimmee, and all of Central Florida.