Where's best place for magnaclean?

Discussion in 'Plumbers' Talk' started by dvddvd, Jan 11, 2018.

  1. dvddvd

    dvddvd Member

    Hi all, friends ch system is a bit gunged up so he's fitting a magnaclean as suggested on here.
    Only problem is there are three returns that are joined together onto a horizontal piece before going into boiler.

    So fitting it to the return into boiler is not as straight forward as it seems. Do I pick one of the returns and eventualy all the water will pass through it?

    Also how much sentinel x800 do We put in? There are 36 radiators, lots of towel rail rads, it is a B and B thanks
  2. kiaora

    kiaora Active Member

    The filter must go on the common return, ie. no connections between filter and Boiler,

    No water enters the boiler without passing the filter,

    If you need to reconfigure the pipes, so be it.

  3. nigel willson

    nigel willson Well-Known Member

    It needs to be on the ONE return . Therefore needs alterations to pipework to be able to do that! Probs couple of bottles!
  4. KIAB

    KIAB Well-Known Member

  5. dvddvd

    dvddvd Member

    The boiler is a floor standing beast, no access to rear without serious kitchen removel.
    The return is t off behind the boiler and the other two ts are where it comes through a wall. Is it pointless putting the mangaclean on one of the t s ?
  6. Dr Bodgit

    Dr Bodgit Well-Known Member

    Doesn't have to go on the return, see attached.

    Attached Files:

    Devil's Advocate likes this.
  7. KIAB

    KIAB Well-Known Member

    For best performance, it's better on the CH return collecting crud BEFORE it enters boiler, totally mad sending crud through a boiler, will block it for sure.
  8. Dr Bodgit

    Dr Bodgit Well-Known Member

    Agree 100% but in this situation the OP does have another option, better than nothing.
    Devil's Advocate likes this.
  9. dvddvd

    dvddvd Member

    Thanks will have a look in the morning
  10. The Teach

    The Teach Active Member

    Is the system fully pumped ?

    The boiler flow temperature could at times peak above the magnaclean maximum operating temperature so its best on the return,another advantage cutting into the return pipe is any sludge or crud can be extracted.

    36 radiators if the property is 3 floors then 1L of sludge cleaner injected into a radiator on each floor level will speed up cleaning,done it that way a few times and it works.
    KIAB likes this.
  11. KIAB

    KIAB Well-Known Member

    Good idea.:eek:

    And good point about boiler flow temperature could at times peak above the magnaclean maximum operating temperature.:)

    The Magnaclean Pro 2 has a maximum working temperature: 95°C, maximum working pressure: 6 bar & maximum flow rate: 50 L/min .
    Last edited: Jan 12, 2018
  12. KIAB

    KIAB Well-Known Member

    Dr Bodgit likes this.
  13. Devil's Advocate

    Devil's Advocate Well-Known Member

    Any chance of a photo of the setup, DVD?

    If it requires a slight re-routing of the final return - diverting it a few feet to get to a Magna - that's got to be worth it.
    KIAB likes this.
  14. andy48

    andy48 Active Member

    If its a pain to rearrange the return piping, might it be cheaper to put a Magnaclean on each return?
  15. Dr Bodgit

    Dr Bodgit Well-Known Member

    Or put it on the flow...
  16. KIAB

    KIAB Well-Known Member

    No No & No.
  17. retiredsparks

    retiredsparks Well-Known Member

    What you trying to infer ?:)

    Agree about temp...but realistically ..all debris will not be caught on first pass...and may take weeks to filter out which means the debris will be passing through the Heat ex.... anyway.
    Capice ?
    Dr Bodgit likes this.
  18. Dr Bodgit

    Dr Bodgit Well-Known Member

    Exactly RS... in fact no more crud will pass through the heat exchanger than when the Magnaclean weren't fitted.
  19. KIAB

    KIAB Well-Known Member

    It will when you put Sentinel X800 in system...:)
  20. retiredsparks

    retiredsparks Well-Known Member

    Agreed, the x800 will loosen lots of debris...but not instantly and the fluid will pass through the HE numerous times and the Mag will need to be cleaned often (as you both wisely advise)...
    so I suggest that the positioning (flow or return) is more about temp than efficiency ?
    Always best to heed the makers "advice" if possible.
    Will be treating my system very soon so will keep you update as to the results.

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