For stormwater control, Plumbing Supply And More - Best Supply House supplies basins, grates

https://www.scribd.com/document/1049560887/SupplyHouse-Tips-Fixing-Low-Water-Pressure-the-Right-Way-167612

For stormwater control, Plumbing Supply And More - Best Supply House supplies basins, grates, and catchments designed to handle heavy rainfall efficiently.