Sentinel X400 Sludge Remover Flushing Compound is a non-acidic treatment for magnetite sludge designed for older central heating systems.

Key Features

• Suitable in all types of indirect heating systems, including those containing aluminium
• Reviving an old system is often more cost-effective than installing a brand new one
• Central heating systems should be cleaned and flushed before a boiler installation
• For use with central heating systems suffering from improper heat distribution
• Sufficient to treat a typical domestic system of 8 to 10 radiator panels
• Sentinel X400 will not clear a pipe if it is completely blocked
• Non-acidic treatment prevents pin-holing or leaks
• Systems should be cleaned in line with BS 7593
• Best designed for older central heating systems
• Larger systems should be dosed with two litres
• Breaks down magnetite sludge
• No more radiator cold spots

Technical Information

• Minimum circulation period: 2 hours
• pH (concentrate): 7 (approx)
• Capacity: 8 to 10 radiators
• Freezing point: -8°C
• Volume: 1L

Application Instructions

• When using concentrate gel, add directly to the heating system either via a radiator air bleed valve or via the filling loop using the appropriate adaptor and a suitable caulk gun
• For open systems, dose liquid via an F&E cistern or a by-pass feeder
• For sealed systems, add to a convenient point and then fill. If the system is already full, use a Sentinel Dosing Vessel to inject it into the filling loop
• A longer circulation period of 3-4 weeks will be required for badly fouled systems