Do I just pour in to header tank

I think the best idea is to drain system completely - I let it drain for a while then lifted the float valve to stop it refilling, once the flow stopped close the drain tap, add the Jetflow to the header tank, free the the float valve and then let it fill then bleed the radiators and run the system. How long you keep cleaner in the system depends on if your radiators weren't getting very hot - a day if you didn't, mine took three days for one problem radiator to work. Once you're happy you need to drain / run system and repeat several times to clear the cleaner. Add a system conditioner like Sentinal X11 keep in good shape.

Can it be used on plastic central heating pipe

Sorry for delay. I have some plastic pipe and it has not caused any problems.

Can this product be used on a car cooling system to unblock a clogged heater matrix?

It may do damage to engine and is not recocomended for cars

If I putted “x100 inhibitor” 2years ago can I add “x800 cleaner” to clean the system

I would drain out the existing water, put in clean water and add the x800 and run the system as usual for about a week, then drain all the dirty water out and refill with clean water and add new x100. They say it cleans within an hour - but that is for the professional plumber who can stand over it whilst it runs. If it is DIY, then you are not in a hurry to drain it down and get the job finished within the day.

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Sentinel - X800 Fast Acting Cleaner 1L, targeted central heating system cleaning inside an hour, restores system efficiency by targeting corrosion debris, ideal for hot and cold systems

Product ID: 49590152

Details

Brand
Sentinel
Item form
Liquid
Item volume
1000
Item weight
1.13 Kilograms
Material feature
Liquid
Number of items
1

🔥restores heating efficiency

⏱️1-hour rapid action

⚙️targets corrosion & scale

273 kr

Duties & taxes included

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Sold byAmazon DenmarkDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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Description

⚡ Clean fast, heat smart — don’t let corrosion slow you down!

POWERFLUSH PERFECTED - Ideal companion for powerflushing, ensuring peak system performance.
VERSATILE FOR HOT COLD - Optimized for both central heating and cold systems—one cleaner, multiple uses.
REFRESHING LEMONGRASS ALOE - Cleans efficiently with a subtle, uplifting scent—no harsh chemical odors.
LIGHTNING FAST SYSTEM REVIVAL - Clears corrosion and scale in just 60 minutes, minimizing downtime.
PRECISION CORROSION TARGETING - Advanced formula dissolves debris without harming your system.

Sentinel X800 Fast Acting Cleaner is a 1-litre liquid solution engineered to rapidly remove corrosion deposits and scale from central heating and cold systems within one hour. Its advanced chemical technology reduces circulation time, restoring system efficiency quickly and effectively, making it ideal for powerflushing and routine maintenance.

Specifications

ASIN	B009L4KXIA
ASIN	B009L4KXIA
Best Sellers Rank	29,496 in DIY & Tools ( See Top 100 in DIY & Tools ) 33 in Radiators
Brand Name	Sentinel
Capacity	1 litres
Contains Liquid Contents?	Yes
Customer Reviews	4.6 4.6 out of 5 stars (885)
Customer reviews	4.6 4.6 out of 5 stars (885)
Global Trade Identification Number	05016402000239
Guaranteed software updates until	unknown
Included Components	Sentinel X800 Fast Acting Cleaner 1 litre
Is discontinued by manufacturer	No
Item Form	Liquid
Item Type Name	Cleaner
Item Volume	1000 Millilitres
Item Weight	1.13 Kilograms
Item model number	X800L-12X1L-EXPA
Manufacturer	Sentinel
Manufacturer	Sentinel
Material Features	Liquid
Model Number	X800L-12X1L-EXPA
Number of Items	1
Part Number	X800
Product Dimensions	10.13 x 9.67 x 21 cm; 1.13 kg
Scent	Lemongrass; Aloe vera
Size	1 l (Pack of 1)
Specific Uses For Product	Boiler, Heating System
Surface Recommendation	Stone
UPC	798256178412
Unit Count	1000.0 millilitre

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TrustScore 4.5 | 7,300+ reviews

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273 kr

Duties & taxes included

In stock

Sold byAmazon DenmarkDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Denmark.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Fantastic experience overall. Will recommend to friends and family.

1 month ago

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2 weeks ago

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