Contractors can fix problem leaks under pressure without turning off the water source with Blue Monster compression seal tape from Clean-Fit Products. It can be used to seal leaks up to 150 psi on almost any material, from galvanized and cast iron to copper and all types of plastics and rubber. Its self-fusing layers form a waterproof seal by compression without the use of any adhesive. Pulling and wrapping the tape tightly around problem leaks creates a chemical reaction that fuses the layers of tape into a mass of silicone that serves as the emergency or long-term repair. It is available in 1- and 2-inch rolls; 12-feet in length; and packaged in a round, plastic case for convenient storage in toolboxes. It is environmentally safe and nontoxic, safe for drinking-water applications, and effectively seals up to 500 degrees F. 800-321-3598; www.cleanfit.com.