DF> My sister's pool water is chronically green... She just spent $70 on
DF> various chemicals as recommended by the pool supply dealer and two
DF> weeks later it is just as green as ever... My question is whether she
Algae problem? Presumably she has tried shocking the pool (dump a lot
of chlorine in it -- don't swim in it for a few days).
DF> could just pump the pool dry and replace the water in it with city
DF> water? We figured that the pool has 28,000 gallons and the cost to
DF> replace the water would be around $40... The pool supply person just
DF> scared her by telling her that it would take about $100 worth of
DF> chemicals to get the city water up to the right levels of PH, chlorine
That price sounds a little high. I used to run pool at the apartment
complex (would teach new managers the quirks) and I don't think the
management was spending nearly that much.
DF> etc... It would seem to me that there must be a lot of nutritious
DF> stuff in solution in that pool water (after 20 years worth of kids
DF> peeing in the pool )that with the addition of sunlight would quickly
DF> turn green... Or am I wrong in that assumption and is the water
DF> essentially pretty clean of organics in solution?
Has the pool ever been emptied? Here in eastern Iowa the pools are
winterized (and they do turn a deep green when idled); in the spring
pumped out, the walls cleaned and fixed as necessary, then flled with
two garden hoses.
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