Across every populated continent, the freshwater bodies that buffer human civilization from its own waste are are choked with algal bloom. From the agricultural watersheds feeding western Lake Erie, to the public reflecting pools of national monuments, to ornamental ponds and aquaculture facilities on six continents, the mechanism is the same: a growing population delivers phosphorus to receiving waters — through sewage, fertilizer runoff, stormwater, and even the corrosion inhibitors in municipal drinking water itself — at rates that exceed what natural geochemistry can sequester. The visible toxic bloom is the symptom. Phosphorus arriving at the inlet is the cause. The InletGuard is engineered for the boundary at which that arithmetic can be changed.
Every algal bloom on Earth depends on phosphorus. It enters at the inlet; it surfaces in the lake. As long as the food keeps arriving, the bloom keeps returning. Aluminum has been used to lock phosphorus into stable mineral form in more than 100 North American lakes — a method endorsed under EPA authority since the 1960s. The chemistry is proven. What has been missing is a way to deliver it continuously, at the boundary, without trucks, tanks, or shutdowns.

We target algae before it blooms, helping to keep lakes clean and safe for communities, and lakefront property owners.

We target harmful bacteria like E. coli, supporting efforts to ensure healthier water for swimmers and safer lakes for your community.

We target swimmer’s itch at its source, making lake water more comfortable and enjoyable for residents, visitors, and families.
We deliver the same chemistry as conventional alum — aluminum bound to dissolved orthophosphate, settling as variscite (AlPO₄·2H₂O) — through an electronic, in-water platform. Two products, one architecture:
InletGuard™ — upstream boundary treatment. A compact sidestream cell installed on a tributary inlet, recirculation loop, or makeup-water feed. It removes dissolved phosphorus before it crosses into the protected basin. Standard 12-inch unit treats 9 GPM; scalable to 250 GPM. No chemical storage. No chloride contamination. Sidesteps Clean Water Act §404 jurisdiction by design.
Oxybot™ — in-lake autonomous platform. Solar-powered, GPS-guided robotic platform carrying the same Active Aluminum™ cell as its in-water payload. Patrols bloom-prone zones identified by onboard sensors. Treatment travels with the water.
The U.S. spends an estimated $4.6 billion every year managing cyanobacterial harmful algal blooms. Bloom frequency has accelerated roughly sevenfold since 1980. Eleven million Americans had their drinking water disrupted by the 2014 Toledo crisis alone. Almost every populated continent now has freshwater bodies on the watch list.
The conventional response is reactive — algaecide, aeration, emergency alum dosing. All of these address the symptom after the food has already been delivered. We address the food.
Talk to us about your lake.