1 U.V. or 2?

I have a 12,000G pond with two pumps going around 2500 GPH each in 2"
pipe into a large filter.

I installed 1 U.V. (36 Watt Tetra-UV3) about 5 days ago The U.V. is
rated to 4000 Flow and 8000 gallons.

I haven't noticed any significant difference in green water. I have
verified that it is working and seems to be an impressive unit.

Should I add another U.V. to the other pump as well?

How long does it take for algae to replicate? Is it possible the
algae is replicating faster than it can be zapped?

Or should I wait for two weeks to see how well it does?

Does the U.V. green water change happen "overnight" or will you see
little changes over time?

(Sorry for so many questions).

- Frustrated in U.V. land.

"Critical Popperian" wrote in message
om...
I have a 12,000G pond with two pumps going around 2500 GPH each in 2"
pipe into a large filter.

I installed 1 U.V. (36 Watt Tetra-UV3) about 5 days ago The U.V. is
rated to 4000 Flow and 8000 gallons.

I haven't noticed any significant difference in green water. I have
verified that it is working and seems to be an impressive unit.

Should I add another U.V. to the other pump as well?

How long does it take for algae to replicate? Is it possible the
algae is replicating faster than it can be zapped?

Or should I wait for two weeks to see how well it does?

Does the U.V. green water change happen "overnight" or will you see
little changes over time?

(Sorry for so many questions).

- Frustrated in U.V. land.

Depending on the density of the algae, it could take several weeks before
you see any significant difference.
If you don't want to wait that long, then by all means add another U.V. to
the other pump.
You can always turn one off (or both) when the water clears.
It is a good idea to have the U.V. before the filter so that the dead algae
is taken out before entering the pond.
Les

Depending on the density of the algae, it could take several weeks before
you see any significant difference.
If you don't want to wait that long, then by all means add another U.V. to
the other pump.
You can always turn one off (or both) when the water clears.
It is a good idea to have the U.V. before the filter so that the dead algae
is taken out before entering the pond.

I can be patient, but do you think this is enough U.V. to control
blooms once it is gone?

"Critical Popperian" wrote in message
news
Depending on the density of the algae, it could take several weeks
before
you see any significant difference.
If you don't want to wait that long, then by all means add another U.V.
to
the other pump.
You can always turn one off (or both) when the water clears.
It is a good idea to have the U.V. before the filter so that the dead
algae
is taken out before entering the pond.

I can be patient, but do you think this is enough U.V. to control
blooms once it is gone?


I had a 9 watt on a 1000 gallon pond and it took about three days,
not for sure this formula is correct and it probably isn't but here's a
guess,
12 times as much water / 4 times as much uv, just guessing here mind ya
12 times 3 days is 36 days, divided by 4 times the uv would be
around 9 days to clear the pond. Variances could be water flow
through the filter and who knows what else.
I would say it would be much harder to remove the algae than to
maintain control of it, especially with a good supply of plants in the
pond.

"Critical Popperian" wrote in message
news
Depending on the density of the algae, it could take several weeks
before
you see any significant difference.
If you don't want to wait that long, then by all means add another U.V.
to
the other pump.
You can always turn one off (or both) when the water clears.
It is a good idea to have the U.V. before the filter so that the dead
algae
is taken out before entering the pond.

I can be patient, but do you think this is enough U.V. to control
blooms once it is gone?


I had a 9 watt on a 1000 gallon pond and it took about three days,
not for sure this formula is correct and it probably isn't but here's a
guess,
12 times as much water / 4 times as much uv, just guessing here mind ya
12 times 3 days is 36 days, divided by 4 times the uv would be
around 9 days to clear the pond. Variances could be water flow
through the filter and who knows what else.
I would say it would be much harder to remove the algae than to
maintain control of it, especially with a good supply of plants in the
pond.

Depending on the density of the algae, it could take several weeks before
you see any significant difference.
If you don't want to wait that long, then by all means add another U.V. to
the other pump.
You can always turn one off (or both) when the water clears.
It is a good idea to have the U.V. before the filter so that the dead algae
is taken out before entering the pond.

I can be patient, but do you think this is enough U.V. to control
blooms once it is gone?

"Critical Popperian" wrote in message
om...
I have a 12,000G pond with two pumps going around 2500 GPH each in 2"
pipe into a large filter.

I installed 1 U.V. (36 Watt Tetra-UV3) about 5 days ago The U.V. is
rated to 4000 Flow and 8000 gallons.

I haven't noticed any significant difference in green water. I have
verified that it is working and seems to be an impressive unit.

Should I add another U.V. to the other pump as well?

How long does it take for algae to replicate? Is it possible the
algae is replicating faster than it can be zapped?

Or should I wait for two weeks to see how well it does?

Does the U.V. green water change happen "overnight" or will you see
little changes over time?

(Sorry for so many questions).

- Frustrated in U.V. land.

Depending on the density of the algae, it could take several weeks before
you see any significant difference.
If you don't want to wait that long, then by all means add another U.V. to
the other pump.
You can always turn one off (or both) when the water clears.
It is a good idea to have the U.V. before the filter so that the dead algae
is taken out before entering the pond.
Les

yes. you got enough. give it time. once it is cleared it takes less to keep it
clean. Ingrid

(Critical Popperian) wrote:
12,000G pond with two pumps going around 2500 GPH each in 2"
pipe into a large filter.

I installed 1 U.V. (36 Watt Tetra-UV3) about 5 days ago The U.V. is
rated to 4000 Flow and 8000 gallons.

I haven't noticed any significant difference in green water. I have
verified that it is working and seems to be an impressive unit.

Should I add another U.V. to the other pump as well?

How long does it take for algae to replicate? Is it possible the
algae is replicating faster than it can be zapped?

Or should I wait for two weeks to see how well it does?

Does the U.V. green water change happen "overnight" or will you see
little changes over time?

(Sorry for so many questions).

- Frustrated in U.V. land.



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yes. you got enough. give it time. once it is cleared it takes less to keep it
clean. Ingrid

Just thought I'd mention that our water is significantly more clear
today.

Still not to the point I'm hoping it'll get, but much clearer so you
look to be right!

yes. you got enough. give it time. once it is cleared it takes less to keep it
clean. Ingrid

Just thought I'd mention that our water is significantly more clear
today.

Still not to the point I'm hoping it'll get, but much clearer so you
look to be right!