[fluffles]

I have the same filter as you. There are others on this forum who know more than me, but my understanding is that you're sort of on the KH border line in terms of scale. They're good numbers in terms of flavour, I think. You can get kits which will test for magnesium and calcium levels which may be useful for you to understand what is happening at setting 0 as compared with setting 1.

 

[fluffles]

Yea we thought that may be the case as we get very good pressure here, so I reduced the tap flow to be approx 1L/30s, but the numbers came out the same.

We have the BWT BestMax Premium V installed

Funny enough, there's a nother thread on here that, when the filter is set up as per the manual, has the same amount of KH at the tap:

http://coffeeforums.co.uk/showthread.php?23425-Bestmax-Premium-Water-Filter

The numbers I quoted in that post were what I was getting with a newly installed filter. I found that after a few weeks usage, the filtering power increased. The current numbers on bypass #2 are 7/2. I now run it on bypass 3 at 9/3.

Perhaps you will find the same and it will start to filter a bit harder, which presumably would set your mind at rest a little.

 

[fluffles]

Yea, I don't think it can do that

I usually refill 2 jugs at a time, so I'll do the first at 0 and the top it up with the second at 1. That aught to balance it out and we'll keep it at 1 for all other appliances to keep the life of the filter

It would be interesting to test this combined output to see if you get numbers in between the other two