Emergency Well Pump Replacement — Huntingtown, MD
A Huntingtown family woke up with no water on a Saturday morning. We diagnosed a failed submersible pump motor (confirmed by breaker tripping and open-circuit motor winding test), pulled the pump from 180 feet, and had a new Goulds 10GS10 installed and running by 3 PM the same day.
The Problem
A family in Huntingtown called us at 8 AM on a Saturday — no water anywhere in the house. The pressure gauge on the tank was reading zero. They had a family event planned for that afternoon and needed water restored as quickly as possible. The pump was 11 years old and had been running in water with moderate iron content throughout its life.
Our Diagnosis
We worked through the diagnostic sequence systematically. First, we checked the pressure tank — it was holding air charge at 38 PSI, ruling out a failed bladder as the cause of zero pressure. Second, we checked the electrical panel — the well pump breaker was tripped. We reset it; it tripped again immediately, indicating a motor short rather than a nuisance trip. Third, we measured motor winding resistance at the control box using a multimeter — one winding showed an open circuit (infinite resistance), confirming motor failure. The pump had likely run dry during a brief drought period the previous week, which overheated the motor windings. Iron content in the water had also contributed to bearing wear over the pump's 11-year life. With the failure mode confirmed, we pulled the pump from 180 feet to verify and replace.
The Repair Process
- 1Confirmed zero pressure — checked tank air charge (38 PSI, normal), checked breaker (tripped/shorted motor)
- 2Measured motor winding resistance at control box — open circuit on one winding confirmed motor failure
- 3Set up well pulling equipment — 180-foot pull with safety rope and pipe vise
- 4Pulled the failed submersible pump and motor assembly — confirmed burned motor windings on inspection
- 5Inspected the drop pipe — 1-inch poly pipe in good condition, no cracks or splits
- 6Replaced all wiring from pump to control box as standard practice (old wiring had 11 years of submersion)
- 7Installed new Goulds 10GS10 submersible pump with new motor, rated for the well's 180-foot depth and yield
- 8Lowered new pump assembly to 160 feet (20 feet above the well bottom to prevent sediment ingestion)
- 9Connected new wiring with waterproof splice kit at the pump and at the pitless adapter
- 10Primed the system and restored power — pump running, pressure building to 60 PSI cut-out
- 11Checked pressure tank pre-charge — adjusted to 38 PSI (2 PSI below 40 PSI cut-in)
- 12Ran all fixtures throughout the home — confirmed full water restoration at all taps
The Outcome
Water was fully restored by 3:00 PM the same day — approximately 5 hours from our arrival to completion. The family was able to proceed with their afternoon plans. The new pump is properly sized for the well's depth and yield. The new wiring eliminates the risk of insulation failure that often accompanies old pump wiring. The homeowner now has an 18-month labor warranty on the installation and a 5-year manufacturer warranty on the Goulds pump.
Key Takeaway
Well pump motors can fail suddenly — especially after running dry during drought conditions. The diagnostic sequence matters: check the tank first (rules out a waterlogged tank), then check the breaker, then measure motor winding resistance. This takes 15 minutes and confirms the failure mode before pulling 180 feet of drop pipe. Having a plumber who stocks common pump sizes and can respond on weekends is essential for Southern Maryland homeowners on private wells.
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May 2026
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