Utilizes a recirculating shower system that captures, cleans, and reuses water in real time, reducing water and energy consumption by up to 80%. This technology provides a high-pressure, hygienic shower experience with a flow rate of 3 GPM while using only 0.5 GPM, making it suitable for residential, modular, and off-grid applications.
Funding
$5.6M raised to dateRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.



RIFounders
Product
Problem
Traditional shower systems consume significant amounts of water and energy, contributing to environmental strain and increased utility costs. The average household uses a substantial amount of water daily, with a large percentage being used in the bathroom. Current regulatory limitations restrict shower flow rates, potentially compromising the user experience.
Solution
RainStick offers a recirculating shower system that addresses these issues by capturing, cleaning, and reusing water in real-time, reducing water and energy consumption by up to 80%. The system uses a three-stage cleaning process to sanitize the water, ensuring hygiene and safety. It maintains a constant supply of fresh water to ensure optimal temperature. The RainStick system delivers a high-pressure shower experience with a flow rate of 3 GPM while using only 0.5 GPM, exceeding standard flow rates while conserving water.
Target Audience
The primary target audience includes homeowners, modular home builders, and individuals in off-grid living situations seeking sustainable and efficient water solutions. Professionals in the building and renovation industries are also a key target.
Features
- Recirculating technology that reuses water up to 6 times before refreshing, minimizing water waste
- Three-stage cleaning process that sanitizes water in real-time, addressing 99.99% of exposed bacteria
- Delivers a 3 GPM flow rate while using only 0.5 GPM, providing a high-pressure shower experience
- Automated self-cleaning functionality to prevent transfer between users
- Option of an adjustable rain shower head and handheld design
- Smart home integration for temperature control and monitoring
- Easy installation process suitable for new builds and renovations