Hayward n. : An officer who is appointed to guard hedges, and to keep cattle from breaking or cropping them, and whose further duty it is to impound animals found running at large.

Example:
Why would my Hayward Pool Vac suddenly cause a significant reduction in filtration PSI?

Taxonomy
Hayward, hayward pool products, Pool, filters, heaters, pool products, swimming pool, cleaners, swimming pool pumps, underwater lighting, pool pump, pool filter, pool lighting, pools and spas, water pump, water filter, color lighting, pool equipment.

Defination from the web:
Manufacturer of pumps, filters, heaters, pool cleaners, and other equipment.