Story perspectives

Nanobubbler Kills Reflecting Pool Algae After $13.1M Renovation

6/16/2026

Summary

Story summary

The Interior Department announced nanobubbler technology has killed algae in Reflecting Pool and is vacuuming it up, thanking President Donald Trump for the renovation.
National Park Service crews are removing algae after a $13.1 million renovation completed in June 2026 that stopped leaks losing 16 million gallons annually.
UNC expert Hans Paerl warned July heat could keep the water green until cooler months and that draining and treating the pool would be costly.

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Story summary

The Interior Department announced nanobubbler technology has killed algae in Reflecting Pool and is vacuuming it up, thanking President Donald Trump for the renovation.
National Park Service crews are removing algae after a $13.1 million renovation completed in June 2026 that stopped leaks losing 16 million gallons annually.
UNC expert Hans Paerl warned July heat could keep the water green until cooler months and that draining and treating the pool would be costly.