Worried about giving up your old toilet because the new ones just don’t flush? Expert Plumbing carries a full line of water-saving, 1.6 gallon toilets. Our recommended products are guaranteed to flush. Guaranteed parts and labor for one full year. Expert Plumbing currently has a special on one of our favorite water-saving toilets, the Kohler “Cimarron,” designed specifically to dispose of even the largest problems in just one flush.