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Well Troubleshooting

Low Water Pressure From Your Well

Weak flow is different from no flow at all — and where it's happening tells you a lot about the cause.

Independent referral service — we connect you with local licensed contractors and don't perform the work ourselves.

First, narrow it down

Whole house, or just one fixture?

Low pressure everywhere in the house points toward the well system itself — the pump, pressure tank, or pressure switch.

Low pressure at one fixture is more likely a local clog, a partially closed shutoff valve, or a fixture-specific aerator or cartridge that needs cleaning — not a well problem at all.

Common causes

What usually causes whole-house low pressure

  • A waterlogged pressure tank that's lost its air cushion
  • A clogged sediment filter, if your system has one
  • Mineral or iron buildup narrowing pipes over time — common with this area's groundwater
  • A pressure switch set too low, or one that's starting to fail
  • A pump that's wearing out and can no longer build full pressure
  • A drop in the well's water level during extended dry weather
The overlap with water quality

Iron and mineral buildup is common here

St. Tammany Parish groundwater commonly carries higher levels of iron, manganese, and other minerals. Over time, these can build up inside pipes and fixtures, gradually reducing pressure even when the pump and pressure tank are working fine. If your water also has a rust tint, metallic taste, or leaves stains on fixtures, a water treatment system is worth discussing alongside the pressure issue — see our Well & Water Services page.

Go deeper

Related guides

No Water From Well

If it's gone from low pressure to none at all.

Well Pump Not Working

Other pump symptoms and what they mean.

Well & Water Services

Full service overview, including water treatment.