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Puretec RO270 Remineralisation
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RO systems with a permeate pump will get you a better ratio than that.Originally posted by AlMac View PostOther interesting thing I learnt (which I haven't read anywhere else either) is the waste level on RO is at least 50/50 - so for each litre of RO you produce a litre of water goes down the drain.
Java "Been using them for decades" phile
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I've been much happier with the taste now using RO (also in Perth).
Similar TDS from the tap (about 430-450).
Interestingly, which I've never seen mentioned anywhere, TDS from my 3M filter and softener was over 900 (tested boiler water). Makes sense though as the hardness particles are essentially coated, not removed, by cartridge systems.
What you want is water in the vicinity of https://techcenter.lamarzocco.com/js...calculator.jsp
My RO provider (in Belmont) advised me to use RO for several weeks before then having it tested and working out what to do from there.
The boiler will have old non-RO water in it and possibly some minerals leeching back into your RO. So you want to give it time to flush all of that out (I am told).
Their view was that Perth water was so poor that I may not need remineralisation because the RO system I have (a bit like yours in principle I think) is not going to get everything out of the water. Of course, this wasn't based on hitting the LM water quality above.
Other interesting thing I learnt (which I haven't read anywhere else either) is the waste level on RO is at least 50/50 - so for each litre of RO you produce a litre of water goes down the drain.
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Google Bombora. Send them an email with your question. They should be able to advise.
please post when / if you have a solution.
Im in the hills east of Perth using RO water and manually adding buffer and hardener
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Puretec RO270 Remineralisation
Hi all,
I'm in Perth with the worst water... A TDS of 450+, Chloride of 170, Sodium 130 and Hardness of 120.
Based on that, I've decided to go for a Puretec RO270 Reverse Osmosis filter kit but now thinking about remineralisation to opimise for coffee.
Anyone have any good recommendations for in-line remineralisation filters or other ideas to bring it back to something tasty? I've been trying to find some options and coming up short, ideally easily purchased online as they're a regular purchase.
Thanks in advance!

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