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#1
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Green pool water
We have not seen in 10 years' use the (above-ground)
pool water so green rather than clear/blue -- and this is the first time the advice of Sam the Expert at the pool store has not worked. (This was to shock afresh i.e. raise chlorine level to 10 p.p.m. from the usual 1 or 2 p.p.m.) Problem appears to be that the green coloration (dead algae?) is so fine the sand filter does not retain it. Backwashing produces a small amount of colour; but the green never leaves the pool; every morning the green has fallen to the bottom, so is picked up by the cleaner, and presumably goes straight through the sand filter and back into the pool. Advice? -- Don Phillipson Carlsbad Springs (Ottawa, Canada) |
#2
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Keep shocking. How old is the filter sand? It does wear out after a few
years, Mine lasts about 3 years..... "Don Phillipson" wrote in message ... We have not seen in 10 years' use the (above-ground) pool water so green rather than clear/blue -- and this is the first time the advice of Sam the Expert at the pool store has not worked. (This was to shock afresh i.e. raise chlorine level to 10 p.p.m. from the usual 1 or 2 p.p.m.) Problem appears to be that the green coloration (dead algae?) is so fine the sand filter does not retain it. Backwashing produces a small amount of colour; but the green never leaves the pool; every morning the green has fallen to the bottom, so is picked up by the cleaner, and presumably goes straight through the sand filter and back into the pool. Advice? -- Don Phillipson Carlsbad Springs (Ottawa, Canada) |
#3
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Al wrote:
Keep shocking. How old is the filter sand? It does wear out after a few years, Mine lasts about 3 years..... "Don Phillipson" wrote in message ... We have not seen in 10 years' use the (above-ground) pool water so green rather than clear/blue -- and this is the first time the advice of Sam the Expert at the pool store has not worked. (This was to shock afresh i.e. raise chlorine level to 10 p.p.m. from the usual 1 or 2 p.p.m.) Problem appears to be that the green coloration (dead algae?) is so fine the sand filter does not retain it. Backwashing produces a small amount of colour; but the green never leaves the pool; every morning the green has fallen to the bottom, so is picked up by the cleaner, and presumably goes straight through the sand filter and back into the pool. Advice? -- Don Phillipson Carlsbad Springs (Ottawa, Canada) Add clarifier to the water. It causes the superfine stuff to coagulate in larger chunks that the filter can filter out. |
#4
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On Mon, 25 Jul 2005 10:24:11 -0400, "Don Phillipson"
wrote: We have not seen in 10 years' use the (above-ground) pool water so green rather than clear/blue -- and this is the first time the advice of Sam the Expert at the pool store has not worked. (This was to shock afresh i.e. raise chlorine level to 10 p.p.m. from the usual 1 or 2 p.p.m.) Problem appears to be that the green coloration (dead algae?) is so fine the sand filter does not retain it. Backwashing produces a small amount of colour; but the green never leaves the pool; every morning the green has fallen to the bottom, so is picked up by the cleaner, and presumably goes straight through the sand filter and back into the pool. Advice? keep adding powdered chlorine and algaecide every three days until water is clear (assuming your water filter is working...circulating the water!) Bill |
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