Pump House Walk-Through — 510 Wilson Rd

Transcribed from dictation by Troy Miller. Prepared for Jay and Darcie Garber.

System Overview

The water goes through four stages before it reaches the house:

Well → Reverse Osmosis (RO) → Mineral Treatment → Sanitation → House

Stage 1: Well Pump

The well pump pulls water up from the ground and pressurizes the intake line. It is driven by a Variable Frequency Drive (VFD) — think of this as a smart motor controller that adjusts the pump speed based on demand instead of just running full-blast or off.

• Drilled by Jackson Waterwell — their number is on the unit
• Runs off a dedicated breaker in the main power panel outside the pump house

Known quirk: The pressure relief valve at the top of the well system has been releasing small amounts of water at high pressure. The valve was replaced but still seeps. Texas Groundwater Solutions is working on plumbing this so the water drains outside instead of inside the pump house. In the meantime, it's covered so it doesn't spray. Plan to follow up with them to finish the fix.

Stage 2: Reverse Osmosis (RO) System

The well water feeds into the reverse osmosis system, which removes minerals and contaminants. The RO system is triggered by a low float valve inside the water storage tank:

• When the water level in the tank drops, the float valve opens
• This sends a signal through a series of switches (contactors) that: 1. Check that well pump pressure is present 2. Turn on the RO pump
• The RO pump fills the tank until the float reaches the top, then shuts off
• No electronics involved — just mechanical float switches

Performance: - Input water: ~1,020 PPM (total dissolved solids) - Output (pure RO water): ~15 PPM — very clean - RO production: ~1.7 gallons per minute - Drain water (waste): ~7 gallons per minute

Stage 3: Re-Mineralization & Filtration

Pure RO water is very low in minerals, which makes it taste flat. Before going to the house, it passes through:

1. Re-Mineralization Tank — Adds alkaline minerals back into the water for taste and health
2. Mixed Media Filter — Standard final filter before the water goes to the house lines

Stage 4: Sanitation (Hydrogen Peroxide Injection)

A small amount of hydrogen peroxide is injected into the flowing water stream. This kills any bacteria or organisms that might still be present in the system — a final sanitation step before water reaches the house.

Stage 5: Booster Pump to House

The booster pump sends treated water from the storage tank to the house at the right pressure.

How it's controlled (redundant system): - Primary system: A Programmable Logic Controller (PLC) monitors two pressure sensors and automatically turns the booster pump on/off to maintain the desired house pressure - Backup system: A mechanical pressure switch on the pump itself can take over if the PLC loses power — it maintains a lower but usable pressure

The PLC does not have a user-facing interface, but it can be adjusted if needed. The system has been running reliably with no recent issues.

Quirks & Ongoing Items

Contacts

Summary

• Water flows: Well → VFD → RO Tank → Re-Mineralize → Filter → H₂O₂ Sanitize → Booster Pump → House
• The RO drops PPM from ~1020 to ~15, then minerals are added back
• The system is all mechanical switches and a simple PLC — reliable and serviceable
• One known maintenance item (valve relief) being handled
• Everything else has been running smooth for some time