On Thu, 26 May 2005 06:10:43 -0600, Wilmdale wrote:

In the last picture, 'finished' I notice you have what looks like a 2
1/2 return pipe. What is your water flow like? Has it bothered the
fish? I ask because the water flow return to my pond is pretty high and
I was wondering how that might affect the fish and plants. So far is
just sounds like a small river and the fish seem to enjoy playing in the
flow.

That's a 40mm pipe (about 1 3/4inch) and it's used as an overflow from
the bio filter. It does get a trickle when the bead filter has been
backwashed and then there is a slight surface movement but nothing
significant.

We have two pumps in the pond. The filter one is a Blagdon Torrent 8000
and the waterfall one is a Tetra OFX11500. I'm in the UK so those
numbers are litres/hour but they are shifting about 1,200 gallons/hour
and both return via the waterfall/stream. The flow from the streams
cause the surface to rotate about once every 10 minutes or so but there
isn't any flow in the pond noticable on the oxygenators, they stick
straight up and are not slanting towards the pumps.

The waterfall pump is raised off the bottom so that it's flow doesn't
disturb the lower levels of water and it's not run all of the time. The
fish do sometimes play in the waterfall flow but there are plenty of
places for them to go and rest. They had a visit from a Heron last week
so they are still spending most of their time at the bottom around the
planting baskets.

--
Regards - Rodney Pont
The from address exists but is mostly dumped,
please send any emails to the address below
e-mail ngpsm4 (at) infohitsystems (dot) ltd (dot) uk