Is Regular Flux® water-soluble?
Yes, it is water-soluble. Water-soluble fluxes will prevent flux pitting corrosion from occurring from the inside of the copper pipe. Being water soluble, LA-CO® Regular Flux will not clog aerators, tank-less water heater lines, or other systems. The flux thoroughly washes through the system leaving the system clean and free of flux. Remember, the water-soluble is code (ASTM B813).