The study compared the installation of four systems: copper pipe with press fittings; copper pipe with solder fittings; PEXa pie with ASTM F1960 cold-expansion fittings; and REHAU PEXa piep with EVERLOC+ fittings. The timed installations were conducted by an experience commercial plumbing crew in two identical sections of a mockup hotel guest floor. Each of the four systems were installed on a section of the mockup by two different plumbers an included 1/2”, 3/4”, 1”, 1 1/4”, and 2” piping.

The study found:

▪ The REHAU PEXa pipe with EVERLOC+ fitting system installed 66% faster than copper with solder fittings, 52% faster than copper with press fittings and 21% faster than PEXa with ASTM F1960 cold-expansion fittings;

▪ PEXa systems and the copper solder system passed the 60-psi (413 kPA) pressure test on the first attempt, while two un-pressed fittings were discovered in the copper press installation during the pressure test;

▪ Installation time for PEXa with ASTM F1960 cold-expansion fittings increased by 33% vs. REHAU PEXa with EVERLOC+ during a cold-room installation, with temperature slightly above freezing at 33°F (0.6°C).

Complete details on the commercial plumbing time study can be found at: http://www.everlocplus.com/timestudy