"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.

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