LavaTap - Sentinel X800 Central Heating Cleaner - 1 Litre Sludge Remover for Radiators and Boilers, Rapid 1H Radiator Cleaner, Power Flush Alternative & Restores Heating Efficiency

LavaTap Sentinel X800 is a high-performance central heating system cleaner designed to break down internal sludge, magnetite, and limescale. It restores water flow, improves radiator efficiency, and helps resolve common issues such as boiler noise, cold spots, and slow heat-up times. The formula begins working within just one hour of circulation, offering a fast and effective solution for blocked or inefficient heating systems. Compatible with all domestic heating systems - including sealed, open-vented, and combination boilers - LavaTap Sentinel X800 is safe for use with aluminium, copper, steel, and mixed-metal systems. It delivers powerful results without the need for a full power flush and is suitable for both professional use and DIY maintenance. Each 1-litre bottle treats up to 100 litres of system water - enough for 8 to 10 radiators or equivalent underfloor heating zones. X800 can be added via radiator, filling loop, or dosing pump. After cleaning, flush the system thoroughly a