At the end of the day the customer is always right.
You have advised. I can't see it causing any great problems, but if it does the customer wants it that way.
Take the cash and do the job.
Correct.
I have come across dozens that are leaking and a load where the magnet shears off just bellow the cap and no more than few years old.
Magna cleans are junk but in their defense, I do believe they work slightly better than the magna boosters.
Do you think the magnet in the Magna Booster is too weak?
Vaillant engineer told me that the majority of restricted heat exchangers he sees can be linked to opening up the system and debris being downloaded from the header tank, or debris entering the system when opened up in some other way.
Which suggests that having a filter that will catch non-magnetic debris as well is essential.
As the majority of magnetite created in rads is going to settle in the bottom of the radiator it comes from, I've wondered whether the larger magnet in the MagnaClean might be over-kill.
My first thought when considering the MagnaBooster was whether it could cause flow problems if the filter becomes full, but the manufacturer's claim the flow will just by-pass the filter if it becomes restricted. This really was my first priority, i.e. that the MB could do no harm, and that it can easily be drained. The second criterion was that it should filter out non-metalic debris; the third factor being that the magnet should be strong enough to filter out the magnetite as it passes through. The main function being to protect the boiler, not to keep the system free of magnetite, which I can't see the MagnaClean doing anyway, bearing in mind the fact that most of it will stay in the bottom of the rads, and be kept to the minimum by chemical inhibitor anyway.
I've got MagnaBooster 2, and I see that MB3 has got a bigger magnet attached to the outside - so I've wondered if that suggests that the magnet in MB2 is a tad weak for the job. Or have they done it in an attempt to counter the advertising play MagnaClean have put on their larger magnet size - which on this forum seems to have worked quite well, although the Tf1 seems quite popular too. I've not laid hands on a Tf1, but from what I can make of it the magnet is unlikely to be any bigger than the MB2. From what I've read on here, the marketing of the Tf1 is pretty intense, with offers of chemicals thrown in, etc. Plus, I suppose Fernox is a well established and trusted brand, and what they produce generally is all about system cleansing and maintenance, and maybe that causes people to put faith in the Tf1 rather than the MB.
I do like the solid feel of the MB, and also the look of it. In that respect I think it stands ahead of the rest. Although of course the most important thing is whether it does the job it was made to do.
Which remains to be seen in the longer term.
