How to Increase Water Pressure at Home: 10 Proven Fixes
Low water pressure is one of the most frustrating home problems. Slow showers, a garden hose that barely reaches, and appliances that take forever to fill — it all comes back to pressure.
The good news: most low water pressure problems have a fix. Here are 10 proven ways to increase water pressure at home, starting with the simplest checks.
First: How to Measure Your Water Pressure
Before fixing anything, know your baseline. Normal home water pressure is 40–80 PSI. Below 40 PSI is considered low.
How to check:
- Buy a water pressure gauge ($10–15 at any hardware store)
- Attach it to an outdoor faucet or washing machine hookup
- Turn on the water fully and read the gauge
Now you know what you're working with.
Fix 1: Check If the Main Shutoff Valve Is Fully Open
This is the #1 overlooked cause of low pressure. If your main shutoff valve (usually near the water meter) was recently turned off for repairs and not fully reopened, pressure drops throughout the house.
What to do: Locate the main valve and turn it fully counterclockwise. Check pressure again.
Fix 2: Check the Pressure Regulator
Most homes have a pressure regulator (also called a pressure reducing valve or PRV) where the main line enters the house. Over time, these fail or drift out of adjustment.
Signs of a failing PRV:
- Pressure suddenly drops or surges
- Pressure is consistently low even though neighbors have good pressure
What to do: The PRV has an adjustment screw. Turning it clockwise increases pressure. Set it to 50–60 PSI for most homes. If adjusting doesn't help, the PRV may need replacement.
Fix 3: Clean or Replace Clogged Aerators and Showerheads
Mineral buildup inside faucet aerators and showerheads is a very common cause of low pressure at specific fixtures — even when the rest of the house is fine.
What to do:
- Unscrew the aerator from the faucet tip
- Soak it in white vinegar for 30–60 minutes
- Rinse and reinstall
- For showerheads, soak the entire head or replace it
Cost: Free to $20. Takes 10 minutes.
Fix 4: Check for Leaks in Your Plumbing
A hidden leak is stealing your pressure. Even a small leak in a pipe, joint, or fixture diverts water before it reaches your faucets.
How to check for leaks:
- Turn off all water in the house
- Check your water meter — if it's still moving, you have a leak
- Look for damp spots under sinks, around toilets, or along basement pipes
Fix any leaks before doing anything else — other pressure fixes won't help if water is escaping.
Fix 5: Flush Your Water Heater
Sediment buildup inside your water heater restricts flow and reduces hot water pressure specifically. If your cold water pressure is fine but hot water is weak, this is likely the cause.
What to do: Drain and flush your water heater annually. Attach a garden hose to the drain valve, run it to a drain, and flush until the water runs clear.
Fix 6: Replace Old, Corroded Pipes
Older homes with galvanized steel pipes suffer from internal corrosion and mineral buildup that narrows the pipe diameter over time — slowly strangling water pressure.
Signs this is your problem:
- Pressure has declined gradually over years
- Rust-colored water occasionally
- Home is 40+ years old with original plumbing
Solution: Replacing galvanized pipes with copper or PEX is a significant investment but permanently solves the problem.
Fix 7: Upgrade to a Larger Diameter Pipe (for Specific Lines)
If a particular line — like the one feeding your garden hose or irrigation system — has low pressure, upgrading from ½” pipe to ¾” pipe on that run dramatically increases flow.
This is a targeted fix that doesn't require replumbing the whole house.
Fix 8: Install a Pressure Booster Pump
If your home is fed by city water with genuinely low incoming pressure, or you're at the end of a long water line, a pressure booster pump is the most effective solution.
A booster pump installs inline on your main water supply and amplifies pressure throughout the entire house.
Best for:
- City water with consistently low pressure (under 40 PSI)
- Multi-story homes where upper floors have weak pressure
- Homes far from the municipal water source
What to expect:
- Boosts pressure by 30–70 PSI depending on the model
- Professional installation recommended
- Cost: $200–600 for the pump, plus installation
Fix 9: Upgrade or Replace Your Well Pump (for Well Water Homes)
If your home uses a private well, low pressure almost always points to the pump system.
Common causes:
- Worn-out pump impeller reducing output
- Pressure tank bladder failure causing short cycling
- Undersized pump for your household demand
- Well pump set too deep or drawing from a low-yield well
What to do:
- Check pressure tank air charge (should be 2 PSI below pump cut-in pressure)
- If the tank sounds hollow but pressure still drops, the bladder has failed — replace the tank
- If the pump itself is worn or undersized, upgrading to a higher-capacity shallow well jet pump or submersible pump will restore full pressure
A quality 1HP or 1.5HP shallow well jet pump can typically supply 800–1,340 GPH at adequate pressure for most homes.
Fix 10: Install a Pressure Tank (for Well Systems)
If you have a well pump but no pressure tank — or a failed one — pressure fluctuates wildly. A properly sized pressure tank maintains steady pressure between pump cycles, so you always have consistent flow.
Signs you need a new pressure tank:
- Pump turns on and off rapidly (short cycling)
- Pressure surges when you open a faucet
- Water hammer (banging pipes)
Quick Reference: Which Fix Do You Need?
| Symptom | Most Likely Fix |
|---|---|
| Pressure low at one faucet only | Clean aerator or showerhead |
| Pressure low throughout the house | Check main valve, PRV, or leaks |
| Hot water weak, cold water fine | Flush water heater |
| Pressure has dropped over years | Old pipes or corroded plumbing |
| Well water, pressure drops and surges | Pressure tank bladder failure |
| Well water, pressure consistently low | Upgrade well pump |
| City water, always low pressure | Install booster pump |
The Bottom Line
Low water pressure is almost always fixable. Start with the free checks — main valve, aerators, leak detection — before spending money. If you're on well water and the pump or pressure tank is the issue, upgrading to a reliable pump is the most lasting solution.
Explore Our Pump Collection
At JUNHE PUMPS, we carry FOTING shallow well jet pumps and submersible pumps designed for reliable, high-pressure home water supply.
Questions about your water pressure situation? Leave a comment or contact our team — we're happy to help diagnose the issue.