Unfortunately, this deal is no longer available
Sentinel X100 Inhibitor reduced to £5.09 at Homebase C&C
738° Expired

Sentinel X100 Inhibitor reduced to £5.09 at Homebase C&C

£5.09£943%Homebase Deals
56
Posted 28th Jul 2019

This deal is expired. Here are some options that might interest you:

It's good price. Normally I get this for around £12 in other places.

3270958.jpg
Community Updates
MODERATOR
19973-aLTo0.jpg
If you click through or buy, retailers may pay hotukdeals some money, but this never affects which deals get posted. Find more info in our FAQs and About Us page.

Groups

Top comments
Thyme28/07/2019 10:49

How do you add the solution? Since it's a closed, pressurised system, …How do you add the solution? Since it's a closed, pressurised system, wouldn't it gush water if you tried to add the solution, say via a radiator?


First step: I drain 1.5L~2L from a radiator that has a tap connected to it, so the system loses pressure. (Or it is even better if you do it on a tower / vertical bathroom radiator where you can siphon some water. (See this video about siphon techniques
https://youtu.be/4LYjdwvy8MY)


Second step: I open the top valve on my vertical bathroom radiator and add the solution. Close the valve after that.

Third step: I put pressure back (1.5~ bar) on my heating system directly from my boiler where it has a valve underneath to put water back.

I hope that helps.

[Edit] I forgot to mention the 4th step: bleed your radiators until no air comes. After that, check/put pressure on boiler again.
Edited by: "dandandd" 28th Jul 2019
Avatar
deleted249798
Lol I literally never knew this was a thing, we haven't done ours in nine years.
56 Comments
Anyone know how often or if ever, a central heating system should be completely drained and refilled incl. adding this solution?
2 years as a minimum. You can test the strength of i inhibitor aswell.

I do mine ever year, as I had some mega sludges pipes.
Thyme28/07/2019 10:18

Anyone know how often or if ever, a central heating system should be …Anyone know how often or if ever, a central heating system should be completely drained and refilled incl. adding this solution?



My heating system was power flushed once and since then I add this solution every 2 years as per recommendation from a plumber. In theory, I don't need to completely drain it as long as I keep putting this solution every two years.
wassap28/07/2019 10:34

2 years as a minimum. You can test the strength of i inhibitor aswell.I do …2 years as a minimum. You can test the strength of i inhibitor aswell.I do mine ever year, as I had some mega sludges pipes.


How do you do the test if you don't mind me asking?
dandandd28/07/2019 10:38

My heating system was power flushed once and since then I add this …My heating system was power flushed once and since then I add this solution every 2 years as per recommendation from a plumber. In theory, I don't need to completely drain it as long as I keep putting this solution every two years.


How do you add the solution? Since it's a closed, pressurised system, wouldn't it gush water if you tried to add the solution, say via a radiator?
Turn the system off, isolate one rad and drain it a little. Or you can add it via magnetic filter i guess aswell.
Thyme28/07/2019 10:49

How do you add the solution? Since it's a closed, pressurised system, …How do you add the solution? Since it's a closed, pressurised system, wouldn't it gush water if you tried to add the solution, say via a radiator?


First step: I drain 1.5L~2L from a radiator that has a tap connected to it, so the system loses pressure. (Or it is even better if you do it on a tower / vertical bathroom radiator where you can siphon some water. (See this video about siphon techniques
https://youtu.be/4LYjdwvy8MY)


Second step: I open the top valve on my vertical bathroom radiator and add the solution. Close the valve after that.

Third step: I put pressure back (1.5~ bar) on my heating system directly from my boiler where it has a valve underneath to put water back.

I hope that helps.

[Edit] I forgot to mention the 4th step: bleed your radiators until no air comes. After that, check/put pressure on boiler again.
Edited by: "dandandd" 28th Jul 2019
Avatar
deleted249798
Lol I literally never knew this was a thing, we haven't done ours in nine years.
Thyme28/07/2019 10:18

Anyone know how often or if ever, a central heating system should be …Anyone know how often or if ever, a central heating system should be completely drained and refilled incl. adding this solution?


If the system is full of sludge I recommend to empty the system, take your radiators in the garden and clean them properly with the help of a garden hose so that all the sludge/rubbish will come out. Do not just empty because the system would still be full of sludge. I did that over 10 years ago for the first time then added this inhibitor and never done anything since then. I checked the condition of the water in the radiators a couple of year ago and can say that it was clean. I think and looks like this stuff does last forever. I will check up again soon
Already posted HERE
deleted24979828/07/2019 11:21

Lol I literally never knew this was a thing, we haven't done ours in nine …Lol I literally never knew this was a thing, we haven't done ours in nine years.


I put some of this stuff in when we has a new rad fitted. Never did it before (so years) now I have 1 rad that only half gets warm so assume it's now full of crap I assume caused by this stuff moving the sludge about. If it ain't broke don't fix it
Avatar
deleted72028
daz_7528/07/2019 12:37

I put some of this stuff in when we has a new rad fitted. Never did it …I put some of this stuff in when we has a new rad fitted. Never did it before (so years) now I have 1 rad that only half gets warm so assume it's now full of crap I assume caused by this stuff moving the sludge about. If it ain't broke don't fix it


Which half?
I have used Sentinel X100 Inhibitor for years on different systems and it's one of the best, this is a great reduced price so snap the offer up, nice spot OP. If you clean and treat the Central Heating system properly you shouldn't have to keep flushing the system.

This is my method on my vented CH system with a header tank in the loft. Like others have said remove and flush out all the radiators with a hose pipe untill the water runs clear...definately an outside job!. If you have a header tank in the loft let it drain down through a bottom boiler tapping outlet, then flush through with clean water from the header tank until the water runs clear from the boiler outlet, this will help flush out the boiler at the same time. It's best and a lot easier if you have got someone to help you because they can open each valve on all the radiator connections to make sure they are cleared of mucky sludge water while your flushing through from the header tank, do this before you refit the newly cleaned out and flushed radiators. Be prepared to protect flooring covers whilst doing this job, old towels, shallow bowls or the wifes best meat roasting tin are handy things to use (be prepared for verbal abuse from SWMBO!).

After the boiler outlet is tightened up and all the rads are refitted and everything is water tight again, pour in your Sentinel X100 Inhibitor into your header at the same time as adding the water, let it mix evenly water/inhibitor at the same time, once the CH pump has started to operate this should help both the water and inhibitor mix evenly around the whole system, a hose pipe is what I use to refil the header tank, it's a lot quicker. Once the system is refilled re-check all those connections for any possible leaks and re-tighten or make good, you will have to vent the air out of the system by the usual bleeding of the radiators, this can be a lengthy process but it has to be done. Once completed, I just pour in some extra neat Sentinel Inhibitor into the header tank as a backup top up, then just sit back and smile to yourself and think of all the lovely money you have saved in not paying someone else to do it for you.
Do you still need to use this if you have a water softener fitted to your home, that also runs through your combi boiler heating system ?
stbk28/07/2019 13:47

Do you still need to use this if you have a water softener fitted to your …Do you still need to use this if you have a water softener fitted to your home, that also runs through your combi boiler heating system ?


yes.
stbk28/07/2019 13:47

Do you still need to use this if you have a water softener fitted to your …Do you still need to use this if you have a water softener fitted to your home, that also runs through your combi boiler heating system ?


I think if you fill with softened water you are supposed to double the dose, as softened water contains some salt.
Or divert the water softener before filling.
Is this good for leaks ??
deleted24979828/07/2019 11:21

Lol I literally never knew this was a thing, we haven't done ours in nine …Lol I literally never knew this was a thing, we haven't done ours in nine years.


In one of the cold countries I came from people don't even know what's this.

No one ever does anything to heating, boilers etc.
We don't even service boilers (apart for CO leak)

Now is the funniest thing.
Branded boilers lasts over 10 years without spending a penny on them.
For the money saved we can just buy new one if needed.
If your system is full of sludge you can get a system cleaner that you add in the same way you would the inhibitor. Run the system for 2 weeks with the cleaner in and then completely drain. Fill the system again and run for a few hours and drain again, then refill with the inhibitor. The amount of black crap that came out was unreal. You could refill and drain as many times as you feel you need to and wait till the drained water runs clear to do a thorough job.

Also I definitely recommend you get a magnetic filter, you will be amazed how much crap they remove, even after the cleaning process. The first week it was covered in sludge. After that it was picking up less and less until it now only needs cleaning every 6 months and just has a tiny coating of black on the magnet. They are also really handy for adding the inhibitor as you can isolate it easily and remove the water and just pour in the inhibitor.
daz_7528/07/2019 12:37

I put some of this stuff in when we has a new rad fitted. Never did it …I put some of this stuff in when we has a new rad fitted. Never did it before (so years) now I have 1 rad that only half gets warm so assume it's now full of crap I assume caused by this stuff moving the sludge about. If it ain't broke don't fix it


It sounds like it was already broke as sludge will be inside your boiler as well and reducing it's efficiency. If I was you i'd remove that rad and flush it out in the garden, then add a cleaning fluid to the system for a couple of weeks and fully drain to clean out all the pipes and rads and clean the boiler. Then add inhibitor to help reduce any further sludge in future.
got 2 bottles and Fernox F5 cleaning solution for £8.99 homebase.co.uk/fer…937
wassap28/07/2019 10:34

2 years as a minimum. You can test the strength of i inhibitor aswell.I do …2 years as a minimum. You can test the strength of i inhibitor aswell.I do mine ever year, as I had some mega sludges pipes.



How about using a cleaner first, this is an inhibitor and solely that.
I cleaned mine a few years ago, so I just need to normal flush.
wassap28/07/2019 10:34

2 years as a minimum. You can test the strength of i inhibitor aswell.I do …2 years as a minimum. You can test the strength of i inhibitor aswell.I do mine ever year, as I had some mega sludges pipes.


That probably depends on what part of the UK you are living in. I still have the 7mm installation ( 30+ years old? ) that has never been flushed or even treated and works perefctly fine.
Mine was bad, 15mm pipe was basically sludged up so bad at some point. Effectively it was a pin hole size for the water to flow through.
38165505-1z9pf.jpg
wassap28/07/2019 18:19

Mine was bad, 15mm pipe was basically sludged up so bad at some point. …Mine was bad, 15mm pipe was basically sludged up so bad at some point. Effectively it was a pin hole size for the water to flow through.[Image]


yep, fully understand now why
SFconvert28/07/2019 14:40

I think if you fill with softened water you are supposed to double the …I think if you fill with softened water you are supposed to double the dose, as softened water contains some salt.Or divert the water softener before filling.


Only if the softener is faulty. The salt solution should only be used to rejuvenate the zeolite.
Not used anything like this on my radiators for 29 years.

They work fine..
does this work with magnaclean filters?
Reserved 10 packs...
Good find. Screwfix sell it £14.99
dandandd28/07/2019 11:05

First step: I drain 1.5L~2L from a radiator that has a tap connected to …First step: I drain 1.5L~2L from a radiator that has a tap connected to it, so the system loses pressure.Second step: I open the top valve on my vertical bathroom radiator and add the solution. Close the valve after that.Third step: I put pressure back (1.5~ bar) on my heating system directly from my boiler where it has a valve underneath to put water back. I hope that helps.


and leave your rads full of air and cold spots............ classic
UsernameTaken128/07/2019 20:57

and leave your rads full of air and cold spots............ classic


I forgot to mention the 4th step: bleed the radiators until no air comes, re check / re put pressure gauge on heating system.
UsernameTaken128/07/2019 20:57

and leave your rads full of air and cold spots............ classic


Just bleed it after, sorted. You'll probably be able to guess if you have this in your rads already just by draining some water off a rad if it's black chances are you don't have any.

Towel radiators best one to do you just close both valves at bottom, unscrew bleed valve, siphon a litre or 2 out of rad, pour fluid in, rescrew bleed valve, open up valves and check pressure.

Don't just do this without understanding how your heating system works. Least you can knacker your boiler, worse you could flood your house..
Lots of info on how to use it on YouTube. My system has a magnetic filter which provides an easy way to add inhibitor to the system. Just ordered a couple of bottles and will have a go. Thanks for the post. Heat added.
Of course yes buddy. You will need to isolate the filter valves, remove the pressure with a bleed key, unwind the filter cap, empty the remaining water inside the filter chamber (by sucking the water through a hose or something) the add the inhibitor into the filter and do the above steps vis versa...
itchyone28/07/2019 20:20

Not used anything like this on my radiators for 29 years.They work fine.. …Not used anything like this on my radiators for 29 years.They work fine..


Me neither, I've been here 19 years. How do you know if the radiators have sludge in? My house is warm enough in winter and I never check if the bottom of the radiator is cold, but then I would expect it to be hotter on top anyway.

How do I know if this is a product I should be using?I wouldn't know what I was doing, I'd have to take a week off work!
My water tank in the loft has loads of sludge.
I do plan to clean it out at some point in the near future, however if I tip a couple of these in will it make any difference or is it pointless?
firstofficer28/07/2019 15:22

Is this good for leaks ??


No.
Depending on the leak, you may be able to resolve the issue with a leak sealing additive though.
Sentinel produce such an additive, that is added to the system in the same way as this product.

Link to product at Screwfix.
Post a comment
Avatar
@
    Text