Changes to Tesco Still Water

vacant · Post by **vacant** » Sat May 23, 2015 10:13 am

Tesco Clearview is from the same source as Ashbeck, though quite a bit cheaper. I can't see Clearview available online anymore. Has it been discontinued?

I got a bottle of Tesco Everyday Value Still Spring Water (17p for 2L). Salifert test was 120. Labeled as "still spring water bottled at source Chase Spring WS13 8EL". Street View shows a big Tesco Warehouse near Burton-upon-Trent, maybe they have a borehole on the premises?

typical values: Calcium 38Magnesium 12Sodium 8Potassium 2.5Chloride 12Sulphate14Nitrate5pH at source 7.8 Looking at previous posts their old "everyday water" was not labeled as "spring water" and had Calcium of 8.2.

This water may still (geddit?) be an option for people like me with Salifert results of 260 on a good day.

Dave S · Post by **Dave S** » Sat May 23, 2015 10:36 am

Don't trust Tesco Value 'Spring' Water to be the same between two batches. I used it twice to dilute. The first time the alkalinity was low - can't remember the exact figure. The second time it was way up near my own tap water. In short, wouldn't use it again.

vacant · Post by **vacant** » Sat May 23, 2015 10:43 am

That could be consistent with the changeover. It seems the older bottles didn't even bother with a mineral content listing but had low Calcium (much like Ashbeck) according to members' tests. What is your tap water alkalinity out of interest?

Dave S · Post by **Dave S** » Sat May 23, 2015 10:55 am

vacant wrote:That could be consistent with the changeover. It seems the older bottles didn't even bother with a mineral content listing but had low Calcium (much like Ashbeck) according to members' tests. What is your tap water alkalinity out of interest?

Around 195. I think the Tesco stuff second time round was 160ish.

slimmrock · Post by **slimmrock** » Sat May 23, 2015 11:41 am

I thought Asda Smart price was the way to go?

Dave S · Post by **Dave S** » Sat May 23, 2015 11:57 am

slimmrock wrote:I thought Asda Smart price was the way to go?

If diluting, I'd go with RO from an Aquatic. I pay £2,50 for 25L.

vacant · Post by **vacant** » Sat May 23, 2015 12:25 pm

Dave S wrote:If diluting, I'd go with RO from an Aquatic. I pay £2,50 for 25L.

I've used RO, best option. I shouldn't be so lazy and just go and fetch some rather than add brewing water to a Tesco home delivery.

vacant · Post by **vacant** » Sat May 23, 2015 12:35 pm

Dave S wrote:Around 195. I think the Tesco stuff second time round was 160ish.

Not really worth it then. If the Calcium is around 38 the alkalinity should work out at around 120. Some of the liqour mineral calcs say Calcium is estimated at 40% of alkalinity but looking at the Bristol Water's listing of my tap water (88 Ca, 260 alkalinity) and the listed Calcium and Salifert result of the Everday water I make it nearer 30%.

Wonkydonkey · Post by **Wonkydonkey** » Sat May 23, 2015 9:46 pm

[quote="vacant"] maybe they have a borehole on the premises? /quote]

I think they have a many boreholes on the premises

.

I went the RO unit way, that way I just make it as I need it.

Dave S · Post by **Dave S** » Sun May 24, 2015 11:52 am

vacant wrote:
Dave S wrote:Around 195. I think the Tesco stuff second time round was 160ish.
Not really worth it then. If the Calcium is around 38 the alkalinity should work out at around 120. Some of the liqour mineral calcs say Calcium is estimated at 40% of alkalinity but looking at the Bristol Water's listing of my tap water (88 Ca, 260 alkalinity) and the listed Calcium and Salifert result of the Everday water I make it nearer 30%.

Alkalinity is a function of magnesium as well as calcium, so if there is little or no magnesium then 40% is about right.

vacant · Post by **vacant** » Sun May 24, 2015 2:01 pm

Dave S wrote:Alkalinity is a function of magnesium as well as calcium, so if there is little or no magnesium then 40% is about right.

That explains it.

Post by **Aleman** » Sun May 24, 2015 7:25 pm

Dave S wrote:
vacant wrote:
Dave S wrote:Around 195. I think the Tesco stuff second time round was 160ish.
Alkalinity is a function of magnesium as well as calcium, so if there is little or no magnesium then 40% is about right.

Alkalinity is a function of Carbonate and hydrogen carbonate (bicarbonate).

Hardness is a function of Calcium and magnesium

Dave S · Post by **Dave S** » Mon May 25, 2015 11:38 am

Aleman wrote:
Dave S wrote:
vacant wrote:

Alkalinity is a function of Carbonate and hydrogen carbonate (bicarbonate).

Hardness is a function of Calcium and magnesium

Yes alright Sm*** Ar**. I do recall someone saying that 40% Calcium in CaCO3 is only true if there in no Magnesium in the equation. Is that right or wrong?

Post by **Aleman** » Mon May 25, 2015 2:53 pm

Dave S wrote:Yes alright Sm*** Ar**. I do recall someone saying that 40% Calcium in CaCO3 is only true if there in no Magnesium in the equation. Is that right or wrong?

Better than being a Dumb 4rse

In terms of trying to guess alkalinity/calcium/magnesium from a hardness value in a water profile than it is correct. In terms of the true definition of alkalinity and hardness then no.

slimmrock · Post by **slimmrock** » Tue May 26, 2015 2:37 pm

I've been using Asdas as my sole source of water since moving to AG as my local water is VERY hard and I haven't really looked into treatment yet..

Should this be ok?

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Changes to Tesco Still Water

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