Rated 5 out of 5Â by InstallerEngineer Top product.
Used on my old system and it's back to full working order. I did use two litres to make sure, for Â£38 it was a cheap cure.
8 Nov 2014
Rated 5 out of 5Â by TheNerd Sentinel X200
Quality product used on its own with a power flush or added to the system with X100, brings a scaled/blocked boiler back to life ( unless the boiler is beyond repair), I personally wont use any other product.
17 May 2014
Rated 4 out of 5Â by noff ok but
The product is ok but you need to be patient as it take a few weeks to work found the rapid dose to be easier to use.
1 Apr 2013
Rated 4 out of 5Â by Boilerkit Sentinel X200
This stuff works well. I put 2 litres in a 13 radiator system.
But I have found it needs another dose after 2 or 3 years. I have an open system.
9 Mar 2013