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Subject: Re: Is tooth brushing water from hot tap safer than from cold tap?
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David P said:My own hot water tank is in the roofspace and it gets a feed from the
rising water main to the house and the tank has a tight fitting cover.
That's a cold water tank that supplies both cold and hot taps in the
house. If it gets hot there is something seriously wrong with your
heating system and you need to get it seen to before a tankful of
boiling water descends through your ceiling killing you (as has happened)
Quoted message said:However the cold water tank in my roofspace is much older and had a
damaged top and I can see the base of the tank is full of crud.
That should be the central heating header tank and if it's also full of
crud there's a liklihood your CH is too and needs cleaning out and
inhibitor added.
Quoted message said:This must be true in millions of households. Many have a heating system
like mine with hot & cold tanks in their roofspace plus a hot water
cylinder. {1}. And maybe they too have their cold water in the bathroom
supplied from their tank in the roofspace.
Provided you have a fairly frequent turnover of water in the tank it
should be fine. However, if you've been on holiday for several weeks in
warm weather I would suggest running a few bathfuls of water first to
freshen the tank.
Quoted message said:In future, should I use the hot water tap (before the water runs too
hot!) to brush my teeth?
No. Apart from the *warm* water being more likely to have bacterial or
other contamination, the warm water will soften the bristles of your
toothbrush, which means they will be less effective against plaque and
gum disease, and all your teeth will fall out of your bleeding septic
gingivae.
Owain