Water tank installation from Legacy Water Well covers everything from selecting the right tank size to final pressure testing and system calibration. Whether you need a standard pressure tank for a new well or a multi-thousand-gallon storage system for a ranch, we design and install the complete system.

Every tank installation starts with understanding your property and water needs:

• Household demand — Number of bathrooms, appliances, and fixtures determines minimum tank capacity and flow requirements.
• Well output — Your well's GPM production and recovery rate dictate whether you need a standard pressure tank or a larger storage system with a booster pump.
• Property layout — Distance from the well to the house, elevation changes, and number of buildings all factor into system design.
• Future plans — Adding a barn, guest house, or irrigation system? We size for where you are going, not just where you are today.

Getting the tank size right is one of the most important decisions in your well system. An undersized tank causes short-cycling, which burns out pumps. An oversized tank is not really a problem — it just provides more reserve and less pump wear. Here is our sizing guide based on thousands of installations across Parker, Wise, Hood, and Tarrant counties:

• 1–2 bathrooms, 1/2 HP pump — 30 to 50-gallon pressure tank. This is the minimum for a small home. We recommend 50 gallons if budget allows.
• 2–3 bathrooms, 3/4 HP pump — 50 to 85-gallon tank. The 85-gallon option reduces pump cycling by 40% compared to a 50-gallon tank on the same system.
• 3–4 bathrooms, 1 HP pump — 85-gallon tank minimum. For larger homes with multiple showers running simultaneously, a 119-gallon tank is the smart choice.
• Multiple buildings or livestock — Standard pressure tanks max out at 119 gallons. For higher demand, we add a storage tank (500–10,000 gallons) upstream of the pressure tank, paired with a booster pump for consistent delivery.

The cost difference between tank sizes is small relative to the pump protection they provide. Moving from a 50-gallon to an 85-gallon tank typically adds $150–$250 to the install — and can add years to your pump's life.

Here is what to expect when Legacy Water Well installs your water tank:

1. Site assessment — We inspect the existing well system, measure pump output, check electrical, and evaluate the location for the new tank. For large storage tanks, we verify the site is level and accessible.
2. System design — Based on the assessment, we recommend the right tank type, size, and any supporting components (booster pump, plumbing modifications, electrical upgrades).
3. Installation — For pressure tanks, installation is typically completed in 2–4 hours. The old tank comes out, new tank goes in, plumbing is connected, and the pre-charge is set precisely. For large storage tanks, installation can take a full day including site prep, tank placement, plumbing, and pump integration.
4. Calibration and testing — We set the pressure switch, verify pre-charge, test the system through multiple cycles, check for leaks, and confirm pressure is correct at the house.
5. Walkthrough — We show you where the tank is, what the pressure gauge should read, and how to spot early signs of a problem. Knowledge is your first line of defense.