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Sentinel Rapid Dose X400 Sludge Remover 400ml

Product Code: 85045

You Must Be Over 18 Years Of Age To Purchase This Product.

Sentinel Rapid-Dose X400 has been formulated for the effective cleaning of existing central heating systems where there is a significant amount of corrosion debris.

  • Neutral pH
  • Helps Restore Circulation
  • Full Discharge in Approximately 30 Seconds
  • Rapid Product Addition to All Systems
  • Water Drawoff Not Required
  • System Cooling Not Required
  • Absolutely No Mess
  • View more information

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Safety Data Sheet (COSHH)


4.5 5 2

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Sentinel Rapid Dose X400 Sludge Remover 400ml 4.5 5 2 2
Usual Sentinel product. I have used Sentinel before and found it works, so I am not reviewing the product but the applicator. What they don't tell you is it will not work with the bleed valves that have a hole at the side to direct the water away like the ones you get on ladder rads! I followed the instructions to the letter and as soon as I turned the valves back on and expected the little rubber bullet to seal the end a 4 foot jet of water shot all over me and the bathroom! After mopping up (and repairing the rad valve that had decided to leak as well after operating it) I tried a normal type rad. I must say it worked well with little spillage, but be warned!! 27 Dec 2013
Sludge remover I can't really get excited about sludge remover - what can I say - I squirted it into the radiator as per instructions - I presume it did its job - no way of telling really but at least it showed the wife that I was willing to do DIY jobs around the house. 31 Oct 2011
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Brand Sentinel
Model No X400
Pack Size 1
Product Type Rapid Dose Sludge Remover
Sealant Adhesive Volume 400 ml
Total Product Weight 557 kg
Volume 400 ml