0500 41 41 41
Cookie Reports - Screwfix Cookie Policy

Sentinel
View product video for Sentinel X400 System Restorer 1Ltr View product video for Sentinel X400 System Restorer 1Ltr

Sentinel X400 System Restorer 1Ltr

Product Code: 89458

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

Download more information...

Safety Data Sheet (COSHH)

£17.99

INC.
VAT

(£17.99/Ltr)

Add to saved list


Available for deliveryNext Day Delivery
Available for collection from store Store Collection Check stock in your store
Page 1 of 4
Page 1 of 4
Sentinel X400 System Restorer 1Ltr 4.6 5 21 21
Sentinel Ultimate Cleaner Used this after fitting two new radiators as system was slow to fill ,run for over two hours and left in overnight ,drained and refilled using no nonsense inhibitor so far system running ok only used to heat water so far but it does seem to be hotter,system certainly quieter. 10 Jul 2015
Sentinel X400 System Restorer We had a serious problem with noise coming from the pump in our open vented CH system. I used Sentinel restorer to give the system a really good cleaning and then took care to flush this out thoroughly. I topped up with Sentinel 100 inhibitor and the results have been great. The system can now run hotter than before increasing the efficiency of the rads and making the house much warmer. I would recommend these products to all CH owners. 29 Apr 2015
Sentinel X400 Sludge Remover Have been having problems with some of my radiators not getting hot, put the liquid in and within minutes the problem was cured. Could not believe how quickly it worked. 17 Apr 2015
Brilliant! For the size of our ancient one pipe CH system, I had to buy two bottles...so a little pricey. But what a difference! The boiler is a lot quieter, the water is a lot hotter and several of the radiators that were only ever luke warm are now hot. We should have used it 10 years ago when we first moved in this property. 7 Apr 2015
  • 2015-09-02T18:06:45.399-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_21, tr_21
  • loc_en_US, sid_89458, prod, sort_default
Page : 2 next>
1 Question  1 Answer

Screwfix Q&A

Ask your questions. Share your answers.

 
 
« Back
 
 
Search:
When and how would you use Sentinel X400 in your central heat
System
16 Aug 2015
Customer avatar
by
Berkhamsted
Read all my Q&A
, Electrician
0points
0out of 0found this question helpful.
Was this helpful?Yes0No0

Answers

Answer: 
Hi there
If you are tackling circulation problems, identifiable as cold spots in radiators, most often caused by sludge build-up. The formation of this sludge is almost impossible to completely prevent and it often settles in low flow areas of the system.

X400 High Performance Cleaner is the best central heating cleaner for this job as it breaks up, lifts and suspends this sludge, then allowing it to be flushed out of the system. In order to do this, it should be circulated, ideally at normal operating temperature, with all valves open and the pump set to maximum flow for a minimum period of 2 hours or until satisfactory performance is restored. In badly fouled systems, a period of circulation of up to 4 weeks is recommended

best regards
Sentinel Customer Services
17 Aug 2015
+2points
2of 2found this answer helpful.
Was this helpful?Yes2No0
1 of 1
  • 2015-09-02T18:03:59.231-05:00
  • bvseo_lps, prod_bvqa, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasquestionsanswers
  • loc_en_US, sid_89458, prod, sort_default
1 of 1

Specification

Download more info (pdf)

Brand Sentinel
Model No X400
Pack Size 1
Product Type System Restorer
Sealant Adhesive Volume 1 Ltr
Total Product Weight 1102 kg
Volume 1 Ltr