Rated 5 out of 5Â by REDDOG94 X800 Very good product
Great for the C/H system clean out, also for a clean boiler, and Kettling (noise) sorter,.The cost of a badly running C/H system , and its performance, is a must buy & use for Sentinel X800
11 Oct 2014
Rated 5 out of 5Â by TheNerd Sentinel X800
Excellent quality product, works very well when power flushing or with the sentinel eliminator filter to restore boiler & heating system to efficient working order. personally I wont use any other product.
17 May 2014
Rated 5 out of 5Â by SlowerThanYou Great Product
Was having problems with poor hot water output on our combi boiler - it would take a good couple of minutes after turning the taps on for the water to get fully hot, and after a further minute or two the boiler often shut down and the water ran cold again.
A bit of online research led me to suspect that the cause was likely to be a fairly common problem:- Sludge/magnetite in the CH system blocking the plate heat exchanger from transferring heat efficiently to the DHW.
In an attempt to avoid the ~Â£500 cost of a professional powerflush (plus the possibility of having to have the plate heat ex cleaned or replaced by an engineer) I thought I'd try putting a litre of this in the system in the hope it would flush enough crud out to get us back up and running. Worth a punt, I thought...
Well, it worked better than I could have hoped! Added the X800 via a radiator, ran the heating for a few hours to get it well circulated, then ran a hot tap for 10 minutes to ensure the plate heat exchanger got a good blast. The problems cleared up pretty much as soon as I'd done this, but I left the X800 in for a few days before flushing thoroughly and the boiler performance gradually improved further over this period.
After flushing, refilled the system and added inhibitor and it's been great since. Saved me the not inconsiderable cost of a powerflush, so am I pretty delighted!
4 Apr 2014
Rated 5 out of 5Â by Clansmen What A Result...
Had probs with my Combi Boiler. Scottish Gas said I needed to fork out Â£620 for a power flush. Decided that I would try adding this first after reading others reviews before spending so much money.
Was amazed after one day noticed big difference. Left in running round system for two weeks then flushed out, now Scottish Gas say no need for power flush.
The cost of two cans as opposed to powerflush speaks volumes.
14 Nov 2013