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#1
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cleaning water tank
1. Prepare a chlorine solution using one gallon of water and 1/2 cup (4 oz) Clorox or Purex household bleach (5-7% sodium Hypochlorine solution). With tank empty, pour chlorine solution into tank. Use one gallon of solution for each 5 gallons of tank capacity. Just so us Europeans can get it right Peggie: 5-7% household bleach, NOT 'thickened bleach' or other 'enhanced' bleach products which the marketers have felt necessary to distinguish their products. Look out for the labelling 'safe for potable water' or the warning 'not to be used in potable water systems'. In Europe, if neither labelling is present, treat the product with suspicion. And since I'm not sure about the size of your cups, or even the volume of your ounces (we used to have two sorts of ounces - fluid and weight - but your American ounces may be different from either!) I assume your initial solution is 1:50, diluted eventually to 1:250, which is the working dilution. Right? -- Jim B, Yacht RAPAZ, Summers in the Med, winters in UK jim[dot]baerselman[at]ntlworld[dot]com |
#2
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cleaning water tank
25-50 ppm free chlorine for shock sanitization
0,5-1,0 ppm free chlorine for maintenance Jim B wrote: 1. Prepare a chlorine solution using one gallon of water and 1/2 cup (4 oz) Clorox or Purex household bleach (5-7% sodium Hypochlorine solution). With tank empty, pour chlorine solution into tank. Use one gallon of solution for each 5 gallons of tank capacity. Just so us Europeans can get it right Peggie: 5-7% household bleach, NOT 'thickened bleach' or other 'enhanced' bleach products which the marketers have felt necessary to distinguish their products. Look out for the labelling 'safe for potable water' or the warning 'not to be used in potable water systems'. In Europe, if neither labelling is present, treat the product with suspicion. And since I'm not sure about the size of your cups, or even the volume of your ounces (we used to have two sorts of ounces - fluid and weight - but your American ounces may be different from either!) I assume your initial solution is 1:50, diluted eventually to 1:250, which is the working dilution. Right? -- Jim B, Yacht RAPAZ, Summers in the Med, winters in UK jim[dot]baerselman[at]ntlworld[dot]com |
#3
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cleaning water tank
On Wed, 06 Aug 2003 18:43:41 GMT, Peggie Hall
wrote: Simplified calculation: use a pint (2 cups or 500 mililiters) of bleach in 25 gallons...a quart (4 cups or 1,0000 ml) in 50 gallons, double that amount in 100 gallons...you should be able to take it from there. Or....for even more simplified calculations For every gallon of tankage give 3 glugs from the jug. For every 3 liters of tankage give 1 glug. If, when you run the water through the pipes it smells as if you've added too little;...add more. If it smells as if you've added too dad-gummed much, and not only have you ruined your water system and the environment by dumping that much chlorine into the system, and you've wasted your money....It might be the right amount....or you did in fact screw it all up. Leave it for the "right" amount of time, or overnight...depending on if you "over-cated" or not. At some point it all depends on how picky one is, and the level at which one assume risk and responsibility. |
#4
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cleaning water tank
On Wed, 06 Aug 2003 19:40:31 -0400, Famous Amos Moses®
wrote: At some point it all depends on how picky one is, and the level at which one assume risk and responsibility. ....oh,....and, how dirty the tank was to begin with.... Sorry for interuption.....please resume your conversation. |
#5
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cleaning water tank
"Peggie Hall" wrote in message ... Just so us Europeans can get it right Peggie: 5-7% household bleach, Correct. Plain ol' household bleach. Look out for the labelling 'safe for potable water' or the warning 'not to be used in potable water systems'. Nope...all household bleach will carry a warning that it's not for consumption. If it were safe to drink the concentrations necessary to kill the "critters," it wouldn't kill the critters. Thanks to you and others for translating the impenetrable volume measures we handed to the USA on independence! I do prefer the simple decimal system. There's less for my aged brain to remember. Yes, all bleaches are labelled 'not for consumption' - or should be. In Europe it is now becoming harder to find 'plain old household bleach'. Certainly, no brands call themselves that. Marketing pressures have created a large number of other products (generically - thickened bleach) which have added perfumes, scents, detergents etc etc. , and most still call themselves 'Household bleach'. Some are labelled 'unsafe for water purification', 'not to be used with potable water systems', but not all are. Some of the 'plain old household bleach' brands are labelled as 'safe to use with potable water', 'safe to use in water systems'. In Greece these are important products where the main source of water is the household cistern - collecting rainwater and storing it for half a year. I think their biggest use in UK is cleaning beer pumping pipes in pubs and washing out fish market stalls! -- Jim B, Yacht RAPAZ, Summers in the Med, winters in UK jim[dot]baerselman[at]ntlworld[dot]com |
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