Water Filter To Remove Fluoride ?

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Dj_Jestar said:
Just how wasteful are RO systems?

I'm looking at getting a filter fitted so I can plumb my espresso machine into the main supply. Any coffee snob/geek can tell you that the purer the water the better the coffee so that's why I'm interested.

I've looked at carbon filters but they "only" remove the heavy stuff.
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Well if you are on a water meter it will be expensive
iirc our filter wastes 5 gallons to get 1 gallon of RO water:)
 
Its a bit of a mess due to it coming from a table. But you get the idea. Your wasting your money on a filter.
There are far more strict test for mains water than bottled, if your worried about chlorine just put a jug of water in the fridge over night and let the chlorine evaporate.

"Water supply name: Liverpool City Centre

Water supply code: Z178

The water supply to this area can vary in hardness from very soft to soft. The supply is low in naturally occurring fluoride and is not artificially fluoridated.

Parameter Min Average Max Units Regulatory Standard Number of samples % failed
2,4-D <0.0100 <0.0100 0.0100 µg/l 0.1 49 0.00
2,4-DB <0.0100 <0.0100 <0.0100 µg/l 0.1 25 0.00
Aluminium <0.0100 <5.04 8.70 µg Al/l 200 36 0.00
Ammonium (ammonia and ammonium ions) <0.0077 <0.0078 0.0103 mg NH4/l 0.5 17 0.00
Antimony <0.100 <0.129 <0.140 µg Sb/l 5 7 0.00
Arsenic 0.110 0.149 0.180 µg As/l 10 7 0.00
Atrazine <0.0100 <0.0100 <0.0100 µg/l 0.1 5 0.00
Benzene <0.0471 <0.0471 <0.0471 µg/l 1 80 0.00
Benzo(a)pyrene <0.0010 <0.0019 <0.0020 µg/l 0.01 7 0.00
Boron 0.0015 0.0085 0.0249 mg B/l 1 76 0.00
Bromate <0.0910 <0.231 0.330 µg BrO3/l 10 7 0.00
Cadmium <0.0200 <0.0257 <0.0300 µg Cd/l 5 7 0.00
Calcium 11.1 16.1 22.5 mg Ca/l 36 0.00
Carbetamide <0.0100 <0.0100 <0.0104 µg/l 0.1 23 0.00
Chloride 6.36 15.3 36.2 mg Cl/l 250 81 0.00
Chromium 0.0900 0.151 0.300 µg Cr/l 50 7 0.00
Residual chlorine - Total 0.19 0.51 0.87 mg/l 87 0.00
Residual chlorine - Free 0.10 0.43 0.80 mg/l 87 0.00
Chlortoluron <0.0100 <0.0100 <0.0100 µg/l 0.1 24 0.00
Colony Counts after 2 days at 37 deg C 0 0 1 number/1ml 36 0.00
Colony counts after 3 days at 22 deg C 0 0 2 number/1ml 36 0.00
Coliform bacteria 0 0 0 number/100ml 0 86 0.00
Colour 0.580 <1.12 2.21 mg/l Pt/Co scale 20 35 0.00
Conductivity 106 142 197 uS/cm at 20oC 2500 18 0.00
Copper 0.0013 0.0265 0.0526 mg Cu/l 2 7 0.00
Clostridium perfringens (including spores) 0 0 0 number/100ml 0 37 0.00
Clopyralid <0.0100 <0.0136 0.0900 µg/l 0.1 50 0.00
Cyanide <0.540 <0.987 2.46 µg CN/l 50 80 0.00
1,2-dichloroethane <0.138 <0.138 <0.138 µg/l 3 80 0.00
Diazinon <0.0100 <0.0100 <0.0100 µg/l 0.1 5 0.00
Dicamba <0.0100 <0.0116 <0.0120 µg/l 0.1 20 0.00
Dichlorprop <0.0100 <0.0100 <0.0100 µg/l 0.1 25 0.00
Diuron <0.0100 <0.0100 <0.0100 µg/l 0.1 24 0.00
E.coli 0 0 0 number/100ml 0 86 0.00
Enterococci 0 0 0 number/100ml 0 7 0.00
Fluoride 0.0100 <0.0216 0.0600 mg F/l 1.5 77 0.00
Fluroxypyr <0.0100 <0.0100 0.0100 µg/l 0.1 19 0.00
Glyphosate <0.0084 <0.0091 <0.0124 µg/l 0.1 48 0.00
Total hardness 14 20 28 mg Ca/l 36 0.00
Iron 8.76 16.6 62.8 µg Fe/l 200 36 0.00
Isoproturon <0.0100 <0.0100 <0.0100 µg/l 0.1 24 0.00
Lead <0.0500 <0.224 <0.290 µg Pb/l 10 7 0.00
Linuron <0.0100 <0.0100 <0.0100 µg/l 0.1 24 0.00
Magnesium 1.51 2.39 3.64 mg Mg/l 36 0.00
Manganese <0.510 <1.29 2.58 µg Mn/l 50 36 0.00
MCPA <0.0100 <0.0104 0.0200 µg/l 0.1 50 0.00
Mecoprop <0.0100 <0.0100 0.0100 µg/l 0.1 25 0.00
Mercury <0.0100 <0.0163 <0.0790 µg Hg/l 1 76 0.00
Metazachlor <0.0100 <0.0100 <0.0100 µg/l 0.1 22 0.00
Metaldehyde <0.0100 <0.0103 0.0140 µg/l 0.1 23 0.00
Nickel 0.190 <0.716 1.96 µg Ni/l 20 7 0.00
Nitrite <0.0016 <0.0016 0.0026 mg NO2/l 0.5 8 0.00
Nitrate 2.39 3.07 4.34 mg NO3/l 50 8 0.00
(Nitrate)/50 plus (nitrite)/3 0.0470 0.0613 0.0860 mg/l 1 8 0.00
Odour (quantitative) 0 0 0 dilution number at 25oC 0 19 0.00
Total organic carbon 0.810 1.19 2.30 mg C/l 75 0.00
Polycyclic aromatic hydrocarbons (sum of 4 PAHs) 0.0000 0.0000 0.0000 µg/l 0.1 6 0.00
Pesticides - Total 0.0000 0.0055 0.141 µg/l 0.5 227 0.00
Hydrogen ion (pH) 6.81 7.20 7.46 pH value 9.5 74 0.00
Radioactivity gross alpha <0.0200 <0.0200 <0.0200 Bq/l 0.1 16 0.00
Radioactivity gross beta 0.0200 0.0363 0.101 Bq/l 1 16 0.00
Selenium <0.0500 <0.114 <0.270 µg Se/l 10 7 0.00
Sodium 7.60 13.4 20.8 mg Na/l 200 8 0.00
Sulphate 7.22 24.4 55.6 mg SO4/l 250 78 0.00
Taste (quantitative) 0 0 0 dilution number at 25oC 0 19 0.00
Tetrachloromethane 0.0200 <0.0243 0.0300 µg/l 3 8 0.00
Trihalomethanes - Total 31.9 38.4 54.4 µg/l 100 8 0.00
Triclopyr <0.0100 <0.0100 0.0100 µg/l 0.1 43 0.00
Tritium <5.00 <5.00 <5.00 Bq/l 100 3 0.00
Tetrachloroethene and trichloroethene 0.0000 0.0000 0.0000 µg/l 10 8 0.00
Turbidity <0.07 <0.09 0.18 NTU 4 36 0.00
 
I'm not worried about chlorine I'm just bothered by the fact that the water tastes like poo and is so heavy with scale it comes out the tap as a stalactite.
 
That's your water down south though, in the NW we have great water out the tap. As the above shows limescale is very very low, soft to very soft.
 
RO water has a `taste or lack of`that I personally did not like.
Dad bought a RO drinking system ,mainly for my mum ,as she drinks a lot of water,did not stay installed 6 months as she hated the `taste` of the RO water
Can`t say that it made a huge difference to the taste of the fresh brewed coffee either
 
Depends on what you buy. Good filters are good. The Ecobud above is the only one on the cheaper end of the scale to remove chlorine and bacteria he rest remove only the heavy metals.

Not all water 'down south' is foul, just most of it. It's because we don't have funnels to catch the rainwater from the constant rain.
 
I wouldn't be drinking RO water as it lacks, well everything.

Almost any RO system is adequate for fresh water aquarium, but if you live in a soft water area there is almost zero point. Marine is another story.

Generally speaking you either use 100% RO water or an RO/tap mix.

When using 100% RO water in the tank you need to re-buffer the water with something like Seachem equilibrium as the filter bacteria and fish need minerals to survive. You can work out how much you need by following the instructions. If you don't re-buffer the tank will crash and everything dies.

Option two is mixing RO with de-chlorinated tap water to get the desired hardness and PH. You need to do a bit of experimentation, but you'll eventually get what you want.

So doing this in a soft water area you are essentially softening the water even more then adding back hardness out of a bottle (basically pointless unless you NEED really soft water, but most fish will adapt). For hard water area's it is basically the only way of getting reliable soft water.

All of the above is only applicable to fresh water fish keeping, salt water is another beast.

If you want to know more about RO systems for fisk keeping, why don't you ask in the fish thread?

http://forums.overclockers.co.uk/showthread.php?t=18100845
 
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