This question is specific to Sydney water - according to google it's hardness is 57ppm which is on the low end in this country
Add this to the fact that for a HX machine, the only time the boiler needs to have a sip is after you've let out enough steam, which means tiny sips each time you use the machine. This introduces tiny tiny amounts of Mg / Ca into the boiler water, which will add to scale, but is tiny.
The brewhead water circuit consumes much more water and therefore will scale faster but brewhead scaling is completely flushed out with a proper backflush which is incredibly easy (just add a bit of proprietary descaling powder to it, which is bascially a weak acid similar to vinegar, to dissolve all the carbonates that make up scale).
Now if you look at the cost of the leading filtration product pushed on here, the Brita C150, its spec demands 12 monthly recharges at $120 per pop. Consider how much does it cost for a professional to descale the boiler? How often would one need to do this if the boiler consumes totally unfiltered Sydney water at 57ppm average hardness? I think at $120 per pop, it's cheaper to pay a professional their full hourly rate (2 hour job max for them) once every 5-10 years for a proper descale, if that's even needed (probably not).
thoughts?
Add this to the fact that for a HX machine, the only time the boiler needs to have a sip is after you've let out enough steam, which means tiny sips each time you use the machine. This introduces tiny tiny amounts of Mg / Ca into the boiler water, which will add to scale, but is tiny.
The brewhead water circuit consumes much more water and therefore will scale faster but brewhead scaling is completely flushed out with a proper backflush which is incredibly easy (just add a bit of proprietary descaling powder to it, which is bascially a weak acid similar to vinegar, to dissolve all the carbonates that make up scale).
Now if you look at the cost of the leading filtration product pushed on here, the Brita C150, its spec demands 12 monthly recharges at $120 per pop. Consider how much does it cost for a professional to descale the boiler? How often would one need to do this if the boiler consumes totally unfiltered Sydney water at 57ppm average hardness? I think at $120 per pop, it's cheaper to pay a professional their full hourly rate (2 hour job max for them) once every 5-10 years for a proper descale, if that's even needed (probably not).
thoughts?

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