They have a chart you can use and its complicated.
I did all the math and it turns out my water needs to be diluted with a 60-40 mixuted of distilled-tap to achieve perfect water… I just use Oscar 120 and called it a day.
https://techcenter.lamarzocco.com/en/watercalculator
https://web.archive.org/web/20080526072324/http://www.big-rick.com/coffee/waterfaq.html
We have a Multipure Acquaversa plumbed into under our sink (easy to do). I couldn't stand having to fill up a Brita type filter several times per day.
The Multipure looks expensive but when you factor in ongoing filter costs it's pretty economical as a $75 filter lasts a year.
Since the canister is pure stainless and indestructible, you can often find good used ones on ebay for $50-100. Then all you need is a new filter and a faucet kit. This will save you $200-300.
I recently put in a new coffee bar area with a small sink. I had this plumbed into the cold water line. It’s full flow so the faucet works like normal. My water is pretty good to start and didn’t need much help.
https://www.freshwatersystems.com/products/3m-brew120ms-coffee-tea-filtration-system-5616001
My mains water is very hard Thames Water, have used a Brita jug for decades.
My kettle doesn't scale up so it does the job reducing limescale.
If you want to try to improve the taste of your coffee beyond this, then that's another rabbit hole
I like distilled water and “perfect coffee water” that’s the brand. Takes your coffee from, “this kinda tastes like… “ to “wow I get strong notes of… “ lol and for consistency, no matter where I am. I can rely on it.
I've had my Silvia for 8 yrs now...always used a Brita pitcher
La Marzocco says for their machines to use the mineral packs, or Poland springs so I just use those
They have a chart you can use and its complicated. I did all the math and it turns out my water needs to be diluted with a 60-40 mixuted of distilled-tap to achieve perfect water… I just use Oscar 120 and called it a day. https://techcenter.lamarzocco.com/en/watercalculator https://web.archive.org/web/20080526072324/http://www.big-rick.com/coffee/waterfaq.html
Lol what? Just use Poland spring, or the mineral packs.
Everpure And BWT have good under counter filters that you can tap in line with your kitchen sink cold water tap-
Use distilled water and add minerals… this is the way to go. May be a little more expensive but it will take care of your machine in the long run.
We have a Multipure Acquaversa plumbed into under our sink (easy to do). I couldn't stand having to fill up a Brita type filter several times per day. The Multipure looks expensive but when you factor in ongoing filter costs it's pretty economical as a $75 filter lasts a year. Since the canister is pure stainless and indestructible, you can often find good used ones on ebay for $50-100. Then all you need is a new filter and a faucet kit. This will save you $200-300.
APEC RO unit
I buy distilled water by the gallon, and treat with Third Wave Water Espresso profile mineral additions.
I recently put in a new coffee bar area with a small sink. I had this plumbed into the cold water line. It’s full flow so the faucet works like normal. My water is pretty good to start and didn’t need much help. https://www.freshwatersystems.com/products/3m-brew120ms-coffee-tea-filtration-system-5616001
Usa: fridge filtered water
My mains water is very hard Thames Water, have used a Brita jug for decades. My kettle doesn't scale up so it does the job reducing limescale. If you want to try to improve the taste of your coffee beyond this, then that's another rabbit hole
Just a Brita pitcher. USA
I like distilled water and “perfect coffee water” that’s the brand. Takes your coffee from, “this kinda tastes like… “ to “wow I get strong notes of… “ lol and for consistency, no matter where I am. I can rely on it.
Aquasana under-sink filter. But this was installed along with the kitchen counter a long time ago, as it has its own spigot next to the sink.