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Thread: Filtration for Espresso Machines- Compulsory Reading

  1. #151
    Member Boggas's Avatar
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    Filtration for Espresso Machines- Compulsory Reading

    Hi guys,
    I am going to fire up an old thread here. I have read the ins and outs of water filtration on this forum and am chasing some advice.

    I currently have a drinking water filter which I have established is not suitable for longevity of espresso machines. My water out of the tap has a GH of 125ppm, alkalinity of 7.5, and a TDS of 300ppm.

    My two questions are do I need a filter system with this level of hardness, and if so is the Brita C150 a suitable option?
    Last edited by Boggas; 19th July 2016 at 07:02 AM.

  2. #152
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    Quote Originally Posted by K_Bean_Coffee View Post
    The C150 costs a few bucks but there's a reason for it. Just read up and you'll understand why it's worthwhile. See below for a pic of a C150 cartridge beside a "standard" water filter:

    And look what's going on inside the C150 PURITY finest:
    Thanks for the info, it seems a C150 is worth the cash.

    It is interesting that you mention the difference between other filters and the C150. For interests sake I tested the water in and out of my current filter which is a 3 stage sub micron filter which includes a softening stage, and is not a whole lot cheaper than the C150.

    The results showed no change to GH or TDS. I suspect that if I tested immediately after a new cartridge is fitted I would see some improvement but obviously it can only soften a small volume of water.

    I think this really highlights what many sponsors have already stated, that a high quality drinking filter is not necessarily suitable for espresso machine use.
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  3. #153
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    Just got the C150 Finest recently - was concerned about the replacement cartridge cost but seeing the size of it and rated capacity I though it was ok. 1100 L at a water hardness rated double of what I have here locally, so I'm good for ages. Plus manufacturers would build in a decent factor of safety with capacity, the bean counters too probably encouraging early swap over.

  4. #154
    Senior Member trentski's Avatar
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    Usually rated at 12 months or x litres whatever comes first.

  5. #155
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    Hi,

    I am just wondering whether water with 0 ppm is good for an espresso machine? I've been using this water for about month, and it's so far so food.

    Thanks.

  6. #156
    TC
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    Quote Originally Posted by kopiku View Post
    Hi,

    I am just wondering whether water with 0 ppm is good for an espresso machine? I've been using this water for about month, and it's so far so food.

    Thanks.
    All depends what it's 0ppm of!

    In general, machines use electrical signals to sense the presence of water. For example, many boilers employ a probe which earths on contact with water informing the control board to halt the boiler fill process. No conductivity = overfill.

    You need some stuff in water and to use something approaching distilled is a no go.
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  7. #157
    Site Sponsor coffee_machinist's Avatar
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    Absolutely.

    As water increases in purity it also becomes more of a solvent, and wants to leach things out of metals it contacts. This is particularly bad with stainless steel and the strange metallurgy around welds. Thus it's a very very bad idea to use non-remineralised RO in your expensive multiboiler LM, synesso etc. and of course same is true for domestic machinery. Everything in moderation!
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  8. #158
    Site Sponsor coffee_machinist's Avatar
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    Also the coffee tastes better with balanced mineral content but thats boring
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  9. #159
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    Thanks for the replies

  10. #160
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    I have been using the c150 underbench kit for almost 2 years now with my r58 plumbed in.
    However we just sold our house and will be renting for a little while till our new place is built.

    So i wont be able to plumb in the machine and dont want to be setting up the the c150 kit on the kitchen tap which will also be used to wash dishes etc.

    So was wondering if the aqua pro benchtop setup will be as good to protect the machine from scale build up

  11. #161
    Senior Member simonsk8r's Avatar
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    Hey guys quick question! When filling up your water tank with filtered water (I have the Aqua Pro Benchtop Filter System), do you let it run for a minute or so before filling the water tank?

    It says that before use you should let it run for a minute if not used often, or just as a recommendation. (upon very first usage it says two minutes, but subsequent times let it run for a minute)

    Does anyone do this, and is it really necessary? I really only use the filter in the morning once, no other times during the day, so not sure if I need to let it run for a bit first.. just don't wanna unnecessarily use up the cartridge so to speak..

    Cheers!

  12. #162
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    Behmor Brazen - $249 - Free Freight
    Sorry for coming to the chat a little late, but having read loads on here I am still a little confused.

    Being a rural vic country property we have rainwater tanks for our drinking water supply (roof collected) which is pumped through a 5 micron particulate filter. The water tastes great and 'not flat' (to my taste anyway).

    Do I need a filter??? given that its already filtered just post pump, but I do want to look after my Giotto EVO Rotary Pump and am thinking of getting it plumbed in and didn't want to miss a filter to the install if I need one?

    thanks in advance.

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