Reverse Osmosis water filter

RomfordNavy

Can anyone offer any advice or tips on which reverse osmosis water filter to buy.

Need only be very low volume, say two gallons per day, but is for drinking water so would need a re-mineralisation cartridge, are there different quality re-min cartridges, which is best?

Would be good if the unit had a volume meter to indicate when to change the cartridges.

Toothsmith

What is it you're wanting to remove that a filter, or distilling won't get rid of?

silvercar

Would be good if the unit had a volume meter to indicate when to change the cartridges.

However little you use it in volume terms, the cartridges have to be changed after 6 months.

What is it you're wanting to remove that a filter, or distilling won't get rid of?

Mine is on to purify softened water for drinking. I don't think it re-mineralises.

RomfordNavy

Want to remove pesticides. Also fed-up wasting so much time buying spring water in bottles every week if I can get the same from a RO system that would be good.

Toothsmith wrote: »

What is it you're wanting to remove that a filter, or distilling won't get rid of?

RomfordNavy

Don't understand that, surely the filters get clogged in relation to how much water has passed through them.

silvercar wrote: »

However little you use it in volume terms, the cartridges have to be changed after 6 months.

peachyprice

RomfordNavy wrote: »

Want to remove pesticides. Also fed-up wasting so much time buying spring water in bottles every week if I can get the same from a RO system that would be good.

You won't get the same from RO water, it is completely de-mineralised, so it removes all good trace elements and raises the water's acidity. It's certainly not a good thing to be ingesting.

silvercar

RomfordNavy wrote: »

Don't understand that, surely the filters get clogged in relation to how much water has passed through them.

True. It's more the risk of bacteria building in them, that recommends changing them after 6 months, rather than the amount of water they've filtered.

silvercar

peachyprice wrote: »

You won't get the same from RO water, it is completely de-mineralised, so it removes all good trace elements and raises the water's acidity. It's certainly not a good thing to be ingesting.

Not sure about that, do you have a link. Why would removing all elements good and bad raise the acidity?

peachyprice

silvercar wrote: »

Not sure about that, do you have a link. Why would removing all elements good and bad raise the acidity?

I didn't actually say removing the elements makes the water acidic, I said it is also acidic.

How come the pH of reverse osmosis water drops? Because reverse osmosis water will absorb carbon dioxide right out of the air. When carbon dioxide is absorbed by water it turns into carbonic acid, and that causes the pH of reverse osmosis water to drop.

https://www.waterionizerexpert.com/blogs/news/what-is-the-ph-of-reverse-osmosis-water

http://www.freedrinkingwater.com/water-education2/ro-ph-page2.htm

http://www.lifeionizers.com/blog/reverse-osmosis-water-alkaline/

[Deleted User]

if you need a filter then this company is excellent. We initially bought a filter tap system, easily installed and we used that for 5 years until we moved when we bought the same system again. Then I had a new kitchen and bought a dedicated tap system and a stainless steel cartridge holder. I replace the filters regularly every 6 months, always from this same company. The water is lovely
https://www.freshwaterfilter.com/