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  1. A

    Reverse osmosis system.

    Yes and no. You can drive more flow through the membrane and reduce waste by increasing pressure, providing the pump lets you. The real limiting factor on these things is surface area of the membrane. The membranes have a maximum flow per unit of surface area above which you risk damaging the...
  2. A

    Reverse osmosis system.

    There used to be a bunch of small labs that would do this kind of thing but they've mainly been bought out by big labs and I don't think they would bother with one off samples anymore. You could try a local university, but your best bet is to go to whoever supplies the water to your house. They...
  3. A

    Reverse osmosis system.

    Sorry. I design municipal/industrial scale membrane systems for a living can get carried away when I get the chance to talk about water treatment.
  4. A

    Reverse osmosis system.

    These things generally run in the 10 - 15 litre/hour range, so not fast. You can get larger ones that will do around 50 litre/hour but they get pretty pricey. Also you're looking at a 1:1 ratio of product water to waste water (this will vary a bit based on a bunch of things like feed quality...
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    Reverse osmosis system.

    Never used reverse osmosis for brewing but I know a bit about RO systems. The stages on these little domestic systems refer to the number of filters i.e. pre-filter, carbon filter, reverse osmosis is a 3 stage system. The RO itself is generally only a single stage so the total number of stages...
  6. A

    Hello from Newy

    Temp control and good sanitation process check. Generally pitching 11.5g of rehydrated yeast plus the kit yeast if I'm using one.
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    Hello from Newy

    Probably still doing extract beers to be honest. But with a better understanding of hop and spec grain flavours and how to put them together in a recipe. That being said I can see myself jumping into all grain on a whim if I come across a well priced second hand urn.
  8. A

    Hello from Newy

    Brews have turned out pretty good, well good enough for my tastes at least. Big difference between brews 1 and 2 with the acquisition of a brew fridge and temp controller. Don't really have a preferred style of beer, good beer is good beer after all. Mainly doing hoppy pale ales at the moment as...
  9. A

    Hello from Newy

    Hi All, Just got back into brewing this year after dabbling during uni (10+ years ago). 5 brews in so far, just kits and extract for the time being, but looking at maybe growing some hops. The home grown hops took a lot of convincing, the conversation went like this: My mate: "You should grow...
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