Magnaclean 2

What boiler you got, usually flow & return are 22mm on a boiler.

Seen it done before, you should be able to use a bit of 22mm pipe & some 15/22mm reducers on the return, but see what others on here have to say first about doing it.

 

Yes, of course you can.

It won't add any noticeable resistance to the flow - especially as your return pipe is only 15mm already... - so it's a case of adding 22-15 reducers as KIAB says.

 

If you think your system has crud in, then add a bottle of Sentinnel X800 & let it run around for a couple of weeks,then drain down,flush throughly, refill not for getting to add a inhibitor like Sentinnel X100, there is also Sentinel X900 FilterAid that can be added along with the inhibitor, helps the filter with collecting the crud.

If your system is particularly cruddy, you will find yourself emptying the filter a couple times a week, for a few of weeks like I did when I fitted one to my system, now the filter is checked twice a year & cleaned if required.

https://www.sentinelprotects.com/uk...tral-heating-systems/sentinel-x900-filter-aid

https://www.sentinelprotects.com/uk...systems/sentinel-x800-jetflo-ultimate-cleaner

https://www.sentinelprotects.com/uk...ntral-heating-systems/sentinel-x100-inhibitor

 

Photo of the underside of the boiler would be good - showing all the pipes and their sizes.

What size is the CH return pipe as it enters the boiler? Surely it's 22mm? This may involve a bit more work, but you may want to consider extending this pipe so's you can fit the filter in it, but that's your call.

Chust make sure that you are catching ALL the return flow, and not chust one line...

 

Either set your camera's resolution to 3MP before taking the shot, or else use: http://jpeg-optimizer.com/

 

I'm guessing the 4th one along from the left is the CH return? Can you confirm?

In which case, chust stick the filter in that pipe wherever you can.

Where does it split into the '2-rad' part and the 'going upstairs' bit?

 

From left to right No1: HW outlet, No 2: Cold water Inlet, No3: Gas, No4: CH Flow, No5: CH Return & No6: Pressure Relief.

And CH flow & return is 22mm.

 

Ah! I've chust spotted the 22mm flow and returns teeing orf right behind the boiler connection...

Graham, the ideal solution would be to redo that piping to accommodate the filter, but that would involve as fair bit of work - you'd have to extend the 22mm return connection from the boiler to a point below it where you could install the filter and then tee off to the 22mm going up and the 15mm going down.

I suspect you don't fancy that, so what I'd suggest instead is - follow that 22mm return wot's going up behind the boiler and through the ceiling, and find somewhere there to install it. This will likely involve having to add a couple of elbows to divert the pipe to a position where it can be installed, unless there's a better location up beyond that ceiling?

Yes, this will mean that the return from the two newer rads won't be directly filtered, but actually that water is shared so it will be cleansed using X800 or whatever, and it will be filtered over time as the water mixes.

 

Yes.

If you want to do it properly, then you'd need to change that 'tee' in to an elbow and point it downwards below the boiler. Extend it to a suitable location - possibly to the RH side of the boiler - where you can fit the filter. Then, on the other side of the filter, you'd need to fit the 22/22/15 tee to catch the new rad piping and also send the 22mm return probably up the side of the boiler to rejoin the 22mm pipe near the ceiling.

Does the Magnclean need to be installed vertically only? If so, find another make - Fernox or summat - that can be fitted horiz if that helps.

No easy solution - but if you are half-competent at plumbing - this is not hard.

 

See this video DA, this is why I like the Magnaclean Pro 2, the pipes can come in from different angles, but the filter must be vertical.

http://www.adey.com/installers/filters/magnaclean-professional2

 

If you do fancy trying this yourself, Graham, then sketch out the layout you are going to follow first, and make sure it'll work. If you fear soldering joints, then you can always go brass compression or even plastic push-fit (and still use copper pipe).

Things to consider - if that 5th along from the left pipe is the return (absolutely confirm - don't chust take KIAB's word for it ) then when you change that tee to an elbow to direct the pipe downwards, bear in mind the pipe will have to clear the other pipes running there. So you might want that elbow to be fitted close to the boiler's connection so's it's out from the wall a bit more (ie use a shorter piece of copper pipe than is currently there).

You should - I think - then be able to site the Magna directly underneath the boiler - allowing room for the lid to come off! - and this new pipe would go straight to it.

All you need to do then is to get the 22mm wot's going up to the ceiling and the 15mm wot's coming from the new rads connected up using a tee and then to the other filter connection.

That's all...

This is a tricky job for most DIYers, and a very tricky one to someone new to this. But a piece of piddle for a plumber - so shouldn't cost that much.

 

Pay a plumber to do the job, definitely not a job for a beginner.

 

I'm inclined to agree, especially in this case as it's definitely not a straight forward job like most of these are.