About Us

With a commitment to sustainable water management and a dedication to quality, our company specializes in the design and installation of water storage tanks that cater to a wide range of needs.

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FLOW Rainwater Systems, LLC

Who is FLOW Rainwater?

We collaborate closely with these experts to guarantee that you're not just making a purchase but investing wisely in a system that suits your requirements. At FLOW Rainwater Systems, we're committed to guiding you through every step of the process, ensuring transparency and support from the beginning of your project to its successful completion. Your satisfaction and water storage efficiency are our utmost priorities.

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The FLOW Family

Tim Nicolls
- Owner/Sales -

Tim, a Central Texas native, became a contractor in 2013 after taking ownership of Fine Line Painting, an established 20-year residential painting company. In 2015, he partnered with Pioneer Water Tanks becoming their trusted tank painter, and in 2017, he shifted his focus to a more sustainable trade by offering water storage solutions through FLOW. Tim married his high-school sweetheart and bookkeeper, Jess, in 2010, and they became active members of the San Marcos community where they currently raise their 2 sons. Besides managing painting and rainwater projects, Tim is a dedicated Taekwondo 2nd degree Black Belt and was recently promoted to Purple Belt in Brazilian Jiu-Jitsu after winning gold at the IBJJF 2023 Master Worlds Championship in Las Vegas. His passion for teaching and coaching kids martial arts aligns with his purpose of building a sustainable future for the next generation. Tim is also a multi-instrumentalist musician and audio engineer. He hosts a podcast show called “Time With Tim" where he interviews local small business owners and entrepreneurs to foster networking opportunities.

Steven Sweeney
- Installer -

Steven Sweeney is the owner of Tank Builders and Rainwater Academy, FLOW’s #1 trusted partner for rainwater harvesting project installations in the Central Texas area and tank builds nationwide. Tank Builders is a certified installer for multiple tank manufacturers including Pioneer. Steven has nearly 20 years in the water industry and is a Class III Water Treatment Specialist.  

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The FLOW MIssion

FLOW Rainwater Systems is dedicated to delivering top-quality state-of-the-art water storage solutions to businesses and communities across Central Texas, all while prioritizing exceptional customer service. We understand the importance of finding the perfect water storage solution that aligns with your specific needs and budget. To ensure this, we have established a network of highly qualified specialists within the industry. We collaborate closely with these experts to guarantee that you're not just making a purchase but investing wisely in a system that suits your requirements. At FLOW Rainwater Systems, we're committed to guiding you through every step of the process, ensuring transparency and support from the beginning of your project to its successful completion. Your satisfaction and water storage efficiency are our utmost priorities.

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FLOW Rainwater Systems, LLC

Why Choose FLOW?

FLOW Rainwater Systems is a nationwide leader in water storage tank solutions. Whether you require rainwater harvesting systems, fire protection tanks, or large-scale commercial storage solutions, we have the expertise to design and implement systems tailored to your specific requirements. Our extensive experience and nationwide presence mean that we can serve clients from coast to coast, providing access to reliable water storage solutions. At FLOW Rainwater Systems, we believe in the responsible use of our planet's most valuable resource, and we are proud to be at the forefront of the water storage industry, ensuring that clean and sustainable water is always within reach.

For the Love of Water

Our professionals at FLOW Rainwater Systems can install water storage tanks nationwide.

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