Can these be using in conjunction with a uv lamp?

Certainly; although you might consider the flow rate of the lamp;
if the pump exceeds it, build a manifold (an array of valves) where
only one of them goes to the uv lamp.

Also, we were considering a waterfall (not huge), but the lift is about 4.5
feet.. can they handle that?

Yes.

A concern I'm having, is how much constant water agitation we might end up
with.. the spitter, the bubblers, and now this as well.

Not all water movement has to go into a water feature.

In your manifold, you can return some water directly to the pond, just
below the surface. This will be helpful to your pond if your water source
is at or near the bottom of your pond.

Example:

Pump--Tee--Array of valves--1 fountain, 2 water fall, 3 back to pond

A picture is he

http://www.aquaticeco.com/index.cfm/.../8341/cid/2034

You can make these out of cheap parts from Home Depot.

C//

"Courageous" wrote in message
...

Can these be using in conjunction with a uv lamp?

Certainly; although you might consider the flow rate of the lamp;
if the pump exceeds it, build a manifold (an array of valves) where
only one of them goes to the uv lamp.

Also, we were considering a waterfall (not huge), but the lift is about
4.5
feet.. can they handle that?

Yes.

Cool on both counts, and the generalization thing.


A concern I'm having, is how much constant water agitation we might end up
with.. the spitter, the bubblers, and now this as well.

Not all water movement has to go into a water feature.

In your manifold, you can return some water directly to the pond, just
below the surface. This will be helpful to your pond if your water source
is at or near the bottom of your pond.

Again, good idea. Looks like some new pond shopping might be in order.

The pond is much clearer then yesterday though, and I think as long as the
algae isn't in full bloom, I might actually be ok.

Something I hadn't considered, is if there something the water lettuce
exudes that kills algae. That's really the only major change in the pond's
ecosystem that has occurred in the last week or so.

He have a plantless mini pond made from a kid's pool and it is still
completely green. I just a portion of the water lettuce in it as an
experiment, to see if the lettuce is what killed off the algae.

Plus, there are a few small watercress plants left.. I relocated them there,
so they can grow back.. when they do, I'll transfer them into the main pond,
for fish food.

--
Gareee's Homepage:
http://www.fortunecity.com/tattooine.../mainframe.htm

Remove Delicious spam to reply

Something I hadn't considered, is if there something the water lettuce
exudes that kills algae. That's really the only major change in the pond's
ecosystem that has occurred in the last week or so.

In sal****er aquariums, both macroalgae and corals routinely engage in
chemical warfare. The corals especially, but even the macroalgae. It's
a possibility for fresh water plants, I suppose, although I am ignorant
of the subject.

C//

Something I hadn't considered, is if there something the water lettuce
exudes that kills algae. That's really the only major change in the pond's
ecosystem that has occurred in the last week or so.

In sal****er aquariums, both macroalgae and corals routinely engage in
chemical warfare. The corals especially, but even the macroalgae. It's
a possibility for fresh water plants, I suppose, although I am ignorant
of the subject.

C//

It's a good thought, I think most of us just figured the lettuce out
competes the algae for nutrients. ~ jan

~Power to the Porg, Flow On!~

"~ janj JJsPond.us" wrote in message
...
Something I hadn't considered, is if there something the water lettuce
exudes that kills algae. That's really the only major change in the
pond's
ecosystem that has occurred in the last week or so.

It's a good thought, I think most of us just figured the lettuce out
competes the algae for nutrients. ~ jan

I have a hard time believing a very small amount though would effect such a
dramatic a change in such a short time period.

I'll report what I see in the smaller pond (there's a larger amount in there
proportionately, and if I do see an effect, maybe water lettuce could be the
"magic bullet" for green water?


--
Gareee's Homepage:
http://www.fortunecity.com/tattooine.../mainframe.htm

Remove Delicious spam to reply

I have a hard time believing a very small amount though would effect such a
dramatic a change in such a short time period.

While I haven't seen what you call a "small amount of water lettuce,"
I've seen water lettuce. A few heads is quite a bit, a lot of biomatter.
I would wonder how much the equivalent green water algae would weigh...

C//

Gareee© wrote:
My greenwater finally died off, but now I have brown water.


Did you have Carol over for tea?
When yiu are not looking she will poop in the pond

Go away Carol, nobody cares about what you have to say. leave the net
and service your husband!

Reel Mckoi wrote:
"Gareee©" wrote in message
...

My greenwater finally died off, but now I have brown water.


## A partial water change would probably help.


I built one of those "milk crate" submerged filter, driven by our large

pond

spitter pump, but noticed this am, the fish all in a cluster, doing the

air

sucking thing.


## Now THAT doesn't sound good.


Does the dead algae reduce oxygen levels? I turned the bubblers on again,

to

add more oxygen in the water.


## I would leave them on ALL THE TIME!


Wonder how long it'll take the filter to clear the dead algae?


## No one can answer that one.........