Available nowTank planning
Tank Size Calculator
Model monthly rainfall, roof capture, water use, storage levels, overflow, and dry periods for your Texas property.
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Make the next decision with confidence.
Practical calculators and selectors built around the questions that matter: how much water you can collect, how to protect it, and which components fit the system.
Explore the toolsFree planning tools
Design around your property.
Work from roof to tank: model storage, size first flush, choose rain heads and filtration, and protect the tank inlet with the right screened assembly.
Available now
Available nowWater quality
First Flush Calculator & Selector
Calculate a practical first-flush diversion volume and identify the right diverter configuration for your roof area.
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Available nowFiltration
Filter & Cartridge Selector
Match flow rate, water use, treatment goals, and maintenance preferences to an appropriate filtration setup.
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Available nowTank protection
Tank Screen Selector
Choose the right inlet screen and mosquito-proofing setup using tank opening, pipe size, and flow requirements.
Open selectorAvailable nowRoof capture
Rain Head Selector
Calculate storm flow per downspout and match pipe fit, debris load, maintenance access, and first-flush strategy to the right rain head.
Open selectorNeed a second set of eyes?
Turn the numbers into a complete system.
Tools are a strong starting point. We can help confirm tank size, collection plumbing, pumps, filtration, and installation details for your property.
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