ADEY’s MC3+ Cleaner and MC1+ Protector serve different purposes, but are both born of the same need to combat iron oxide sludge. The Cleaner loosens debris and can be left in the system for as little as one hour, or as long as 28 days. After the system is drained to flush loosened debris, system flow is restored. The Protector is designed to be used after the cleaner. It prevents scale buildup and slows the oxidation process. Both products are available in single-use bottles or Rapid-Dose canisters fitted with an adaptor that delivers the formula in 20 seconds. Either delivery method treats 33 gallons, or up to 15 radiators, in a single treatment.
Source: PM Magazine Plumbing News