Mike Flenniken

Appendix M of the IAPMO Uniform Plumbing Code, or the Water Demand Calculator, was integrated into the California Plumbing Code on July 1. It provides a new method for sizing water pipes in residential buildings. For Villara Corp., a leading plumbing and HVAC contractor in Northern California, it remains business as usual, having used the calculator for over five years to construct over 5,000 single-family homes.

The Camp Fire in Butte County, California, started in 2018, destroying over 18,000 structures and causing 85 deaths. Paradise, a town 90 miles north of Sacramento, lost about 95% of its buildings, but It is on the road to recovery.

In 1988, Holland, Michigan’s downtown needed revitalization. Merchants were leaving for a nearby indoor mall. Local industrialist Ed Prince proposed installing a snow-melt system for the streets and sidewalks after seeing a similar system in Europe.