Incontinence from drinking Tap Water in England & the EU

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I am male 60 single & eat healthily, I live in England, gluten free by choice to lower my high blood pressure, have not needed to see a doctor in 5 years.
My brother 62 is also gluten free by choice to stop his arthritic joint pain.
We both were incontinent, excessive & imperative trips to the toilet or would wet pants, my overnight trips were 6 or more, passing upwards to a Litre of urine.

We visited our EU uncle in November 2017 for 3 days and improved within 2 days, the third day no toilet trips in the night, also I noticed my number 2’s had hardened, we both noticed the change.

On our return to England, the incontinence returned within 12 hours after drinking ‘tap water’.

In 2016 I was in the EU for a month I drank tap water then, it was like being in England so never questioned it, overnight trips were 6 or more, just a every day occurrence.

We guessed that our lifestyle change was the trip, we realized that our EU uncle’s mains tap was fitted with a ‘in-line carbon water filter’, it was used for all the cooking and drinking in his home.

We both have altered what we now drink, my brother uses ‘carbon filtered water’ he is now okay.
It took me longer ‘carbon filtered water’ was not enough, I still had problems, I had to detox for a month with bottled water, cheapest was ‘chase spring water’ sold by Aldis/Tesco.
(Not all bottled waters are safe, some I found are like tap water so am wary)

I can now use ‘carbon filtered water’ for drinking and also for cooking.
My toilet visits during the day are when I want to go & at night down to 1 or 2 visits expelling 300-400 ml, I sleep better. My blood pressure has improved also.

I have had relapses, not all food café's ‘carbon filter’ there water before selling hot drinks to clients. Each episode takes me 24 to 48 hours to detox.

There is something in England & EU mains water supplies which forces me to go more often than need be, I do not know which of the additives they add to clean the water to make it safe for consumption. I just wish they did not add it, maybe use something similar, but without the side effects.

I Lost my mother aged almost 97, 2 years ago, she had dementia, was type 2 diabetic, incontinent and had a colostomy bag,
i left work to care for her, was her main carer for 12 years after me Dad died.

If i knew then, what i know now, i would have used carbon filtered water for drinking and cooking, she was very incontinent and on occasion there was liquid diarrhea in her colostomy bag.

The filtered water may have improved both our lives.
I live in Nuneaton my water supplier is severn trent, through I still carbon filter the water for drinking and cooking.
My incontinence is almost under control except that I have an allotment and grow my own vegetables. This year with the lack of rain I was forced into watering the plants with tap water instead of rain water. Salad, cabbages and potatoes etc, what ever is in the tap water that makes me incontinent is now in my veg, so every evening when I eat it, I know that throughout that night I'll be forced to go to the loo a lot.
next year hopefully it will be wetter, I will conserve rain water for essential watering.
My theology is if you grow it you must eat it.
I hate wasting all the time and effort i put in to growing it to throwing it away because of my incontinence problem.

has anyone out there tested themselves, to see if water is an issue!
Tap water definitely varies around the country, on past visits to my m-i-l (was in Hertfordshire, but now deceased) we would be welcomed with a cup of tea. Within no more than a half hour this would create flatulence for me, the results of which were different to my normal botty behaviour: drinking tea at home in Hampshire never had this effect.
It's an interesting subject! I think it would be ideal for one of those 'diet and health' programmes on the telly! Why not write in and suggest it. The TV companies have the money to do the tests etc etc.

Certainly chalky hard water is hell for cups of tea (milk scums instantly), but great for teeth. Lots of people growing up in soft water regions (non chalk) have 'weak teeth' in comparison with calcium-rich-water folk!

Tests would have to distinguish between whether it was a case of the geological origins of the water (eg, hard/soft etc) or the 'purification' processes used by water companies (or both!).

Up in Scotland in the Highlands, the water is always 'brown' (even in Glasgow it's a bit brown - the city's water apparently comes from Loch Katrine in the Trossachs I was always told). I was on holiday once in the Highlands and an American lady at the table next to ours in the hotel restaurant was horrified by the jug of tapwater - the staff had put lemon slices in to bleach it, but it was still pretty damn peaty! She cried 'I can't drink that, I'm on medication!'. However, hadn't done the natives any harm for several millennia. Even so, I can see how, if one's system is not used to a particular type of local water, that one might react badly to it.

But it is a REALLY interesting question - definitely needs more investigation!