If you open this drain-off, you’ve got a rubber washer and you’ve got your valve. If you have a look at the bottom of your filter, it’s got a nice big flat face on there, big rubber washer, just put your washer in there, connect that onto there. When you look at the valve, on the vale here it’s got an arrow. You need to make sure that the arrow is the right way round. So in this particular situation here our return is going back to the boiler in that direction. We need to make sure that the arrow is pointing the right way. We can take this apart to make it a bit easier if we like, that just comes apart. Best practise would be to fit this onto the return to the boiler.
We’re going to show you on this pipe here. First of all what you do is you would turn your power off to your boiler, you would find a drain-off, and then you would drain the heating down. So we’ve got a source pipe here, and we’ve found its drain-off. This particular drain-off we unscrew from there. This value here we shut this down, and we undo this out of here. When we undo this out of here some water will come out. So with this particular type of drain-off what we need to do is turn the lock seal down on this side, and also shut this valve. Then as we do that, we just need to undo this, then once we’ve undone that, just put this hose on, and then just drain that down.
So you’ve drained your heating down now, and now we need to mark the pipe work. All you need to do is get your tape measure, measure a 70 millimetre section, and then we just need to cut that section out. I’m using a pipe slice to cut it, you may need to use an hacksaw, but a pipe slice is a lot better. Then we get the filter, have a look at that arrow there, make sure it’s going in the right direction. When you have a look in these, one side’s just a normal connection, one side’s a slip socket. So it makes it easier to go on. We just put it on a slip socket, and then we’ll just push this up then to how we need it, then we can just tighten that up.
Then just get our filter back on there. When we look at this filter, this doesn’t need to be tight, this has got a double O ring in there, so it doesn’t have to be tight. As long as we’ve got it on, and that’s turned round, then you can nip it up if you want to. When you finished you might nip it up, but for demonstration purposes now we’ll just leave it slack. So before you fill it back up, then you can add your chemicals in below. I normally just turn the valve upside down. Fernox do a filter fluid protector, so you can just buy that, connect your hose on. That just connects onto the bottom of there. Now what we need to do is just open that tap up. Once we’ve opened that tap up, you get your filter fluid, take the lid off it, and it’s really easy. It tells you, it gives you a guide on there how to do it.
Screw that onto there, and just pull the trigger. That will then inject that into your system. Once you’ve done that, turn that back off. Then once you’ve turned that back off you can then fill your system back up, depending on what type of boiler you’ve got. Have a look on one of our other videos on how to re-pressurize a combi-boiler, if you’ve got a combi-boiler. If you found this video useful, please give it a thumbs-up, give it a like. Also add some comments below. Thanks for watching.
Step by step guide on installing the fernox tf1 omega filter including draining the system down