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    Popular FAQs

    • How long can Sentinel X800 Fast Acting Cleaner be left in the system?

    • What is the dosage rate of Sentinel X100 Inhibitor?

    • Which product is better for old domestic systems, X400 High Performance Cleaner or X800 Fast Acting Cleaner?

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FAQs & Support

FAQs

Cleaning Heating Systems
Inhibiting Heating Systems
Filtration for Heating Systems
Maintenance and Testing for Heating Systems
Common Heating System Problems
Underfloor Heating Systems
Solar Thermal Systems
Ground Source Systems
Air Source Systems
Limescale and Hot Water Systems
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General/Brand
  • I've purchased a Sentinel product from an online re-seller and it looks/smells odd. What should I do?

  • Where can I buy Sentinel products online?

  • Are Sentinel water treatment and cleaning products really non-toxic?

  • Is Sentinel X100 Inhibitor compatible with other brands of inhibitor?

  • Will the Sentinel X100 Quick Test Kit detect other brands of inhibitor?

  • Which Sentinel products contain non-toxic glycol?

  • Are Sentinel products safe to use with a combination boiler?

  • Can I add Rapid-Dose™ into a hot system?

  • Are Sentinel water treatment chemicals really harmless to the environment?

  • Can you discharge Sentinel products into a drain?

  • Can I add Rapid-Dose™ into open-vented systems?

  • How do I dose Rapid-Dose™ into a pressurised system?

  • What is the filling loop stop valve and how do I locate it?

  • Can I reuse the Rapid-Dose™ adaptor?

  • After dosing Rapid-Dose™, do I need to connect the filling loop to both the mains and system side?

  • Can I dose Rapid-Dose™ into non-Sentinel filters?

  • Will adding Rapid-Dose™ increase the pressure of the system?

  • Can I use a can of Rapid-Dose™ more than once, or split it across 2 systems?

  • Can I use the Sentinel Rapid-Dose™ adaptor on products from other manufacturers?

  • The adaptor is broken or missing from my can of Rapid-Dose™, what should I do?

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