Drop Pipe & Submersible Wire Inspection
Thorough inspection, torque-rub detection, and replacement of compromised drop pipe columns and chafed electrical wiring.
Common Signs & Symptoms of Failure
- ⚠ Pump breaker trips after running for 5 to 30 seconds
- ⚠ Rusty water discharge pointing to galvanized pipe wall failure
- ⚠ Pump runs continuously but zero water reaches the surface (column split)
- ⚠ Unexplained drop in operating gallons per minute (GPM)
- ⚠ Vibration or knocking sounds inside the well casing during pump startup
Technical Execution & Equipment Standards
- ✓ Schedule 80 PVC, Schedule 120 PVC, and heavy-wall galvanized pipe evaluation
- ✓ Dielectric brass couplings to prevent galvanic electrolysis downhole
- ✓ Submersible pump cable insulation resistance testing (megger test to ground)
- ✓ Cross-linked polyethylene (XLPE) jacketed copper pump wire replacement
- ✓ Heat-shrink waterproof dual-wall marine-grade splice terminations
Equipment Specifications: Utilizes Schedule 80 rigid PVC pipe with precision-machined stainless steel couplings, submersible 12/3 and 10/3 flat pump wire with ground, and heavy-duty nitrile torque arrestors.
Our Step-by-Step Field Process
1. Acoustic Sounding & Torque Verification
We listen for column vibration and water hammer upon pump activation, checking for excessive kick that indicates missing or deteriorated torque arrestors down the casing.
2. Column Hoisting & Joint-by-Joint Visual Audit
Each 20-foot pipe joint is extracted and examined for thread thinning, scale buildup, stress cracks, and rust pitting. Electrical wiring is checked for cable guard detachment and rub wear against rock walls.
3. High-Voltage Megger Wire Testing
We apply 500V to 1,000V DC to the submerged power cable to identify micro-tears in the XLPE insulation that allow water leakage to ground, which causes intermittent breaker tripping.
4. Re-piping & Marine Splice Sealing
Compromised sections are replaced with heavy-duty Schedule 80 PVC or galvanized steel. All electrical connections are redone with dual-wall adhesive heat-shrink tubing and secured with stainless cable guards every 40 feet.
Edwards Aquifer & West Texas Geology
Ranch wells that cycle frequently experience severe motor startup torque. Without properly spaced torque arrestors and stainless cable guards, the drop pipe and electrical wire slap against rough limestone borehole walls, causing catastrophic short circuits or sheared pipe threads.
Preventative Maintenance Tip for Landowners
If your water turns suddenly rusty or cloudy red after a pump start, check your galvanized drop pipe immediately—it often signals severe internal pipe wall corrosion before the pipe shears.
Frequently Asked Questions
What causes drop pipe to fail underground?
The primary causes are mechanical torque friction against the rock borehole, corrosive water attacking galvanized threads, and water hammer from failed check valves. When pipe splits, water simply recirculates inside the well.
Should I replace galvanized drop pipe with Schedule 80 PVC?
In most West Texas wells under 500 feet, high-tensile Schedule 80 PVC drop pipe with stainless steel couplings is superior because it will never rust, corrode, or leach iron flakes into your pressure tank.