Tulsion MB115 is a virgin mixed bed deionising resin in a 25 litre bag, used by window cleaners worldwide. MB is short for mixed bed: cation and anion ion exchange beads blended ready to pour, so the bag goes straight into a vessel or cartridge with no mixing. The same MB115 grade is available under our own brand as FaceLift® Premium Resin, produced for us by Spectrum. Fill a DI Resin Vessel or refillable cartridge and run tap or RO water through it; the resin captures the dissolved minerals and the water comes out at 0 ppm, ready to dry spot free on glass. In a soft water area MB115 on its own can be the whole purification stage. In a hard water area it earns its keep as the polisher after an RO membrane, which also stretches each bag much further. Check the output with a TDS meter as the bag ages: 0 ppm means working resin, and a climbing reading means it is time to change. A Blue Resin Funnel keeps the swap clean.
