[Whole House Potable]
Whole House Potable Rainwater Systems
Clean, chemical-free water for your entire home, collected naturally and designed for the Texas Hill Country.
Call us now! (512) 677-7246
Designed for Texas Hill Country
Turn-Key Installation
Independent Water Supply
Water Shouldn’t Be This Complicated
Living in the Hill Country often means dealing with unreliable wells, hard water, or expensive drilling costs.
Municipal water isn’t always an option, and when it is, it often comes heavily treated with chlorine and other chemicals.
The Benefits of Potable Rainwater
Chemical-Free Water
Naturally clean water without chlorine, fluoride, or chemical odor.
Better for Skin & Hair
Rainwater is naturally soft, helping reduce dryness and residue.
Septic System Friendly
Soft, chemical-free water supports healthy septic systems.
Eco-friendly
Reduce strain on local aquifers like Edwards and Trinity.
That’s why more homeowners are turning to rainwater harvesting as a reliable, independent water source.
[Smart Infrastructure]
The Water Command System™
Smart Infrastructure for the Texas Hill Country
Stop settling for a “dumb” tank. Our proprietary Water Command System™ is the brain that automates your water security from first flush to freeze protection to emergency reserves.
The Flow Boss™
with Freeze Sentry™
The ultimate “set it and forget it” system. It automatically diverts roof debris for pristine water and self-drains your pipes during a freeze to prevent bursts.
No smell
No manual draining
No algae
Emergency Water Guard™
Hard Stop Logic
An insurance policy for your pump. Our “Hard Stop” logic prevents your motor from running dry or sucking in silt, preserving an emergency reserve when you need it most.
Pump protection
Silt prevention
Emergency reserve
Recapture Technology™
Harvest The Tail
Don’t waste a drop. We harvest “The Tail” of the storm, catching light rains other systems miss. This adds 10,000–20,000 gallons of free water to your inventory every year.
10,000–20,000 gal/yr
Light rain capture
Zero waste
Don’t just catch rain. Control it.
The Flow Boss™ System
Proprietary technology engineered for cleaner water and lower maintenance.
Medical-Grade Filtration
Water passes through a multi-stage filtration process that removes sediment, contaminants, and particulates, meeting the standards required for safe, potable household use.
UV Sterilization
A built-in UV sterilization stage eliminates harmful bacteria and pathogens without chemicals, so your water stays clean from tank to tap, naturally.
Automated Management Flow Boss™
Monitors and manages your system automatically — from first-flush diversion to pipe drainage, reducing the need for manual intervention and keeping maintenance simple.
Flow Boss™ isn’t just a component, it’s the intelligence behind every Rainwater Specialists system.
How Much Water Can You Collect
1 inch rain on 2,500 sq ft roof
= 1,557 gallons
= ~50,000 gallons per year
= 1,557 gallons
[The Problem]
Your water shouldn't be working against you.
Wells run dry. Aquifer levels across the Southwest have been dropping for decades, and drought conditions aren’t improving. Municipal water isn’t a clean solution either. Hard water leaves white scale on fixtures, destroys water heaters faster than they should fail, and tastes like a swimming pool. You’re paying a monthly bill for something you wouldn’t choose to drink if you had an option.
Dry wells & unreliable supply
Wells run dry in drought season. Municipal restrictions are tightening. You can’t control the source — but you can stop depending on it.
Hard water, scale & poor taste
White buildup on fixtures. Soap that won’t lather. Water that doesn’t taste right. These aren’t cosmetic issues — they’re signs your water quality is failing your home.
[The Solution]
The whole-home potable rainwater system
A rainwater system from Rainwater Specialists isn’t a rain barrel bolted to a downspout. We collect from your roof, store in purpose-built tanks, run it through a filtration and treatment process that meets drinking water standards, and deliver it through your existing plumbing at normal household pressure. No municipal connection required. No well dependency.
Every tap. Every shower. Every day.
System Flow
Roof collection
First flush diverter
Storage tank
Sediment filtration
UV & carbon treatment
Whole-home distribution
Engineered for potable use — not just irrigation. Treated, filtered, and pressure-balanced to meet the same demands as a municipal connection, with none of the dependency.
[What to Expect]
What does a whole-home rainwater system cost?
We get this question on every call, so let’s answer it before we talk. Most whole-home potable systems we install range from $40,000 to $65,000 — and some larger properties go higher. That range is wide because no two properties are the same.
$40,000 – $65,000+
Typical installed range for a whole-home potable system
Roof size
Larger collection area = more capacity
Storage needs
Tank volume scales with household demand
Site conditions
Terrain, existing plumbing, and access
We don’t send estimates without seeing the property. A site assessment takes about an hour and costs nothing. You’ll walk away with a clear picture of what a system would look like for your home — and whether it makes financial sense.
[The Details That Set Us Apart]
Built to Perform. Finished to Impress.
Most rainwater systems are functional but forgettable. Ours are designed to look as good as they work, because a system this important deserves a professional finish.
Professional Pipe Painting
Every exposed pipe is painted and finished to blend seamlessly with your home’s exterior, no eyesore, no shortcuts.
Clean, Organized Plumbing
We take pride in how the system is laid out. Neat runs, proper supports, and a finished look that holds up for years.
Flow Boss™ Integration
The Flow Boss™ unit is installed with the same attention to detail, clean, accessible, and built for the long haul.
When neighbors ask about your water system, you’ll be proud to show it off.
How the Installation Process Works
01
Site Evaluation
We evaluate your property and water needs.
02
System Design
We size the system by roof area and demand.
03
Installation
Most systems are installed in 1–4 days.
Why Homeowners Choose Rainwater Specialists
Systems designed specifically for Texas Hill Country conditions
Turn-key installation from design to final setup
Reliable systems built for long-term performance
Technology that keeps water cleaner and maintenance lower
Frequently Asked Questions
Can I start with a smaller tank and add more later?
Yes, if initial installation is designed for expansion. Tanks installed in parallel (same elevation, shared piping) can be added later without re-plumbing the entire system. This is one advantage of multiple smaller tanks vs. one very large tank — you can scale up as budget allows or needs increase.
When we install initial tanks, we design inflow and outflow piping sized for future expansion, and position tanks where additional units can be added without moving existing equipment.
Do tanks require a concrete pad?
Not necessarily. Tanks require a level, compacted base that won’t settle over time, but this can be:}
- Compacted crushed rock or gravel (most common, adequate for most installations)
- Engineered fill with proper compaction
- Concrete pad (more expensive but provides perfect level surface)
We recommend concrete pads for:
- Very large tanks (40,000+ gallons) where weight concentration is extreme
- Sites with poor soil drainage or stability
- Below-ground installations requiring structural support
For typical residential above-ground tanks (10,000-30,000 gallons), a well-compacted gravel base is adequate and costs less than concrete.
How do I know if my tank is full?
Tanks include visual level indicators (sight glass or graduated gauge on exterior) showing current water level. For more precise monitoring, electronic sensors can provide exact gallon measurements and integrate with smartphone apps for remote monitoring.
Overflow pipes automatically divert excess water once tank reaches capacity, preventing overfilling regardless of monitoring.
What happens if the tank runs completely dry?
The pump’s low-water cutoff prevents it from running dry (which would damage the pump). When tank level drops below the cutoff point, the pump shuts off automatically and won’t restart until water level rises above minimum threshold.
You’ll lose water pressure throughout the house (no water at taps), but the system doesn’t damage itself. Once rainfall refills the tank above the cutoff level, the pump resumes normal operation automatically.
This is why proper tank sizing with adequate drought reserve matters — you want enough storage to bridge typical dry periods without hitting empty.
Can I connect my tank to municipal water for automatic backup?
Yes, but this requires backflow prevention devices to prevent rainwater from entering municipal supply (required by code). A float valve can automatically refill your tank from municipal or well source when rainwater level drops below a set point.
This configuration works well for:
- Properties using rainwater as primary source with municipal backup for drought
- Systems where irrigation uses rainwater but household has municipal connection
- New properties transitioning from municipal to rainwater gradually
We design automatic backup connections that comply with cross-connection control requirements.
Do tanks need to be emptied in winter?
No. Tanks remain full year-round in Texas. Water inside tanks (especially larger volumes) rarely freezes completely even during hard freezes — the thermal mass and ground insulation protect them. Exposed pipes and pump connections require freeze protection (insulation, heat tape, or burial below freeze line), but tanks themselves stay operational through winter.
How much does tank installation cost beyond the tank itself?
Tank installation costs vary by site complexity, but expect:
- Site preparation and foundation: $1,500-4,000 (above-ground), $5,000-15,000 (below-ground)
- Plumbing and conveyance: $1,000-3,000
- Electrical for pump: $500-1,500
- Permits and inspections: $200-800
Total installed cost typically runs 40-70% above tank purchase price. For example, a $8,000 tank might cost $12,000-14,000 fully installed.
This is why complete system quotes matter more than tank-only pricing — the installation cost is substantial and varies based on site-specific factors.
Start Harvesting Your Own Water
A properly designed rainwater harvesting system can provide clean, reliable water for your entire home while reducing dependence on wells and municipal systems. Our team designs and installs systems tailored to your property and water needs.
Call us now! (512) 677-7246