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Reverse osmosis filter system supply & fit in UK?

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Hi all,

I am concerned about the pharmaceuticals, metals, flouride, chloride etc in the water supply and I do own a water distiller and even a burkey filter but the distiller takes 4 hours to distil 4 litres and the burkey filter, although it doesnt require energy as it is gravity fed, it still doesnt filter everything.

Reverse osmosis filtration is on my wish list but I dont know how much it would be for a regular plumber to fit or if there is a company who supply and fit.

Ideally I would want a separate tap for drinking and cooking as it would be wasteful to use RO water for washing dishes.

I am selling my house though in 2 years time so need to consider the costs carefully.  I most definitely want a system in my next home though but it would be amazing if it could be installed now.

Has anyone got any experience having one fitted etc?
Love the planet.  Eat plants.
«13

Comments

  • silvercar
    silvercar Posts: 49,611 Ambassador
    Part of the Furniture 10,000 Posts Academoney Grad Name Dropper
    We had a water softener and reverse osmosis filter fitted at the same time. We have softened water to all taps in the house, except for one garden tap. We then have the softened water going through a RO filter to a separate drinking tap at our kitchen sink. So the kitchen sink has a mixer tap for softened hot and cold water and a small drinking water tap. All supplied and fitted by the same company. Not sure whether it is worth the payback if you only intend staying for 2 years.
    I'm a Forum Ambassador on the housing, mortgages & student money saving boards. I volunteer to help get your forum questions answered and keep the forum running smoothly. Forum Ambassadors are not moderators and don't read every post. If you spot an illegal or inappropriate post then please report it to forumteam@moneysavingexpert.com (it's not part of my role to deal with this). Any views are mine and not the official line of MoneySavingExpert.com.
  • getmore4less
    getmore4less Posts: 46,882 Forumite
    Part of the Furniture 10,000 Posts Name Dropper I've helped Parliament
    Are there not issues with drinking very pure water 
    water efficiency 

    If just for drinking/food for a couple of years how much will you use.

    Pure water for steam products & cleaning)  @4p/Ltr we use
    https://www.spotlesswater.co.uk/




  • Jjah
    Jjah Posts: 94 Forumite
    Fourth Anniversary 10 Posts Name Dropper Photogenic
    Are there not issues with drinking very pure water 
    water efficiency 

    If just for drinking/food for a couple of years how much will you use.

    Pure water for steam products & cleaning)  @4p/Ltr we use
    https://www.spotlesswater.co.uk/




    You are right that very pure water could be a problem. 
    Water is the universal solvent and very pure water will absorb whatever it can. Thankfully, it is very simple to get an inexpensive meter to measure the ppm of water and add a good mineral like himalayan salt to a 100ppm or so ratio to balance it prior to consumption. :-) 
    Love the planet.  Eat plants.
  • Jjah
    Jjah Posts: 94 Forumite
    Fourth Anniversary 10 Posts Name Dropper Photogenic
    I would absolutely love to live nearer to a spring or even be able to afford a borehole in my future property but that seems a very unpractical wish.  RO seems more achievable.
    Love the planet.  Eat plants.
  • Apodemus
    Apodemus Posts: 3,410 Forumite
    Ninth Anniversary 1,000 Posts Name Dropper Combo Breaker
    Jjah said:
    Are there not issues with drinking very pure water 
    water efficiency 

    If just for drinking/food for a couple of years how much will you use.

    Pure water for steam products & cleaning)  @4p/Ltr we use
    https://www.spotlesswater.co.uk/




    You are right that very pure water could be a problem. 
    Water is the universal solvent and very pure water will absorb whatever it can. Thankfully, it is very simple to get an inexpensive meter to measure the ppm of water and add a good mineral like himalayan salt to a 100ppm or so ratio to balance it prior to consumption. :-) 
    It doesn't sound very MSE to spend lots of money removing unknown impurities only to then add back an expensive product that contains more unknown impurities!

     The contents of Himalayan salt are less tightly regulated than the UK water supply and studies have shown that most Himalayan salt products on the market will (amongst other things) contain aluminium, barium, boron, cobalt and lead...

    Of course, things that are contaminants in the water supply, magically become "amazing minerals that makes up this great salt" when it is offered for sale!   :)
  • _Sam_
    _Sam_ Posts: 313 Forumite
    Third Anniversary 100 Posts Name Dropper
    edited 5 January 2023 at 12:41PM
    We’ve used RO water for years now due to having marine fish tank. The RO unit was bought for the fish, but the family quickly realised the benefits for the humans  :)

    We never got round to installing it “properly” so to speak, maybe when we refit the current kitchen in the new house we’ll do.

    However in the meantime we just have the unit in the cupboard under the sink, simple DIY plumbing to cold water supply there and to the waste. 

    A tube where the RO water comes out long enough to reach the sink, so that when we need water we put a bottle (if for humans) or a bucket (if for fish) in the sink and turn the tap underneath to start the trickle production. When done simply turn off the tap, coil the tube and stuff it back in the cupboard.

    The sink part is important so that if you are a bit late to replace the bottle the overspill doesn’t flood your kitchen (learned from experience :D )

    We saved several 1.5ltr glass bottles from san pellegrino mineral water, bought little silicon caps that you just pull on, and that has been our clean bottled water for over10 years now. Use it for drinking and cooking. 

    The RO unit has 3 stages primary filter, then carbon, then the actual RO membrane. When we make water for the fish, we connect an extra stage with de-ionisation mixture, this really polishes the water but not needed nor probably very good for humans.

    As I said the entire thing is DIY so the only expense is buying the RO unit, and a TDS meter (total dissolved solids) to keep an eye on the filters.
    Gas: warm air central heating, instant water heater, Octopus tracker
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  • Section62
    Section62 Posts: 9,876 Forumite
    1,000 Posts Fourth Anniversary Name Dropper
    _Sam_ said:

    A tube where the RO water comes out long enough to reach the sink, so that when we need water we put a bottle (if for humans) or a bucket (if for fish) in the sink and turn the tap underneath to start the trickle production. When done simply turn off the tap, coil the tube and stuff it back in the cupboard.

    Do you not drain the unit or flush it through?

    Aren't you concerned with the potential for bacterial growth in the water between uses?
  • _Sam_
    _Sam_ Posts: 313 Forumite
    Third Anniversary 100 Posts Name Dropper
    No, only drain when replacing the filters (primary and carbon every 6 months, and the RO membrane about once a year but it can last longer depending on how much water is produced)

    Not really even thought about bacteria, as I said we've been using the same old RO unit for years now and everyone's still alive. However the unit is in use pretty regularly - at least once a week we do a water change for the fish and that's 50 litres of water to be produced, then whatever we need to replenish the bottles for drinking and cooking. 
    Gas: warm air central heating, instant water heater, Octopus tracker
    Electricity: 3kw south facing solar array, EV, Octopus intelligent
  • _Sam_
    _Sam_ Posts: 313 Forumite
    Third Anniversary 100 Posts Name Dropper
    edited 5 January 2023 at 1:14PM
    P.S. if you are lucky to live in some parts of Scotland, you might not need RO filter as their ordinary tap water can have TDS as low as 20. Compared to over 500 in places like Norfolk!  

    You could just get a TDS meter they are inexpensive and test. And you can also ask your water supplier for the water quality report.
    Gas: warm air central heating, instant water heater, Octopus tracker
    Electricity: 3kw south facing solar array, EV, Octopus intelligent
  • Jjah
    Jjah Posts: 94 Forumite
    Fourth Anniversary 10 Posts Name Dropper Photogenic
    _Sam_ said:
    We’ve used RO water for years now due to having marine fish tank. The RO unit was bought for the fish, but the family quickly realised the benefits for the humans  :)

    We never got round to installing it “properly” so to speak, maybe when we refit the current kitchen in the new house we’ll do.

    However in the meantime we just have the unit in the cupboard under the sink, simple DIY plumbing to cold water supply there and to the waste. 

    A tube where the RO water comes out long enough to reach the sink, so that when we need water we put a bottle (if for humans) or a bucket (if for fish) in the sink and turn the tap underneath to start the trickle production. When done simply turn off the tap, coil the tube and stuff it back in the cupboard.

    The sink part is important so that if you are a bit late to replace the bottle the overspill doesn’t flood your kitchen (learned from experience :D )

    We saved several 1.5ltr glass bottles from san pellegrino mineral water, bought little silicon caps that you just pull on, and that has been our clean bottled water for over10 years now. Use it for drinking and cooking. 

    The RO unit has 3 stages primary filter, then carbon, then the actual RO membrane. When we make water for the fish, we connect an extra stage with de-ionisation mixture, this really polishes the water but not needed nor probably very good for humans.

    As I said the entire thing is DIY so the only expense is buying the RO unit, and a TDS meter (total dissolved solids) to keep an eye on the filters.
    Thats an incredible reply.  Very very helpful, thank you.

    May I ask if you have a link to a similar device and would any plumber be able to fit? I am ok with DIY but I draw the line at plumbing :-)


    Love the planet.  Eat plants.
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