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Sentinel X400 System Restorer 1Ltr

Product Code: 89458

Rated 4.4 out of 5 by 13 reviewers.

1Ltr. Apply to existing systems for the removal of sludge and deposits. Iron oxide is broken down and dispersed through flushing.

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Safety Data Sheet (COSHH)

Was £18.99

£16.99 (inc. 20% VAT)

4.3846 5 13

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Rated 5 out of 5 by Reliable brand name Sentinel X400 is recommended by Potterton and many other boiler manufacturers, easy to use and suitable for all types of boiler and pipe work. 23 Jul 2014
Rated 5 out of 5 by Recommended by plumber This sentinel 400 was recommended to me by the heating engineer who had come out to replace a broken boiler pump. I was advised that there was too much rubbish (he didn't actually use that word!) in my heating system. It was simple to administer and I now look forward to it doing its job in sorting out my sludge! 2 May 2014
Rated 5 out of 5 by Give it time Left this product in systen for two weeks and it made a marked improvement to heating system. I gave cool spots in radiators a few taps with rubber mallet to help loosen sludge and after a week they had gone.When I flushed sytem out there was a good amount of black sludge came out. Just give it time. 29 Sep 2013
Rated 5 out of 5 by De-sludged! We had a noisy boiler, Our plumber fitted a new pump and suggested we de-sludge. I am a bit sceptical about such things but thought I would give it a try and bought two bottles of X400. With trepidation, we drained some water off, poured it in and crossed our fingers. It's 3 weeks since we put it in and the system needs draining down again but it's worked a treat. It took a few days but the boiler is now unbelievably silent so I'll be following up with X100 & X200 to complete the job. 27 Apr 2013
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Brand Sentinel
Model No X400
Pack Size 1
Sealant Adhesive Volume 1 Ltr
Total Product Weight 1102 kg