We recently completed a duplex double water line installation for a client whose tenants had previously been sharing a single water system. This setup often led to inconsistent hot water and frustration for both households. We installed a new, dual-system design that not only provides stronger and more reliable hot water, but also serves as a backup—ensuring that if one system ever goes down, the other can still operate. The entire project was completed in just one day, and the tenants were extremely happy with the improved performance and peace of mind.