Sentinel
Sentinel Sludge Remover Rapid Dose 300ml SENTINELX400RAPIDDOSE
Sentinel X400 Rapid Dose is a 300ml sludge remover for central heating systems, part SENTINELX400RAPIDDOSE (product code PN105979).
At a glance
- Also known as SENTINELX400RAPIDDOSE
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What it is
Sentinel X400 Rapid Dose is a 300ml dose of sludge remover for central heating systems, supplied by Sentinel. It is a water treatment chemical rather than an appliance-specific component, and is introduced into the system to break down and mobilise sludge and deposits that accumulate in radiators, pipework and heat exchangers over time. The Rapid Dose format is a pre-measured 300ml unit intended for direct dosing into the heating circuit.
Signs this part needs replacing
- Cold spots at the bottom of radiators or uneven heat across the property
- Black or discoloured water when bleeding radiators
- Noisy operation from the boiler or circulating pump
- Sluggish system warm-up and higher than expected running costs
- Sludge or magnetite found during a system flush or filter clean
Before you order
- Confirm the system volume so the correct number of 300ml doses is ordered
- Note the product code PN105979 when cross-referencing against supplier listings
- Follow the manufacturer's dosing and circulation instructions for the system being treated
- Check whether the system also requires a separate inhibitor or filter clean as part of the same visit
Mechanical
| Part type | Sludge remover |
|---|
Compliance
| Manufacturer part number (MPN) | SENTINELX400RAPIDDOSE |
|---|---|
| Commodity code | 3824 99 96 99 |
| GPC classification | Water Treatments (DIY) |
| Alternative numbers | SENTINELX400RAPIDDOSE |
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No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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Tell the parts assistant what it's going into — the appliance make and model, or the GC number off the data badge — and it will check this part is on the fit list.