Noisy pond Filter
Noisy pond filter, me?
If you have a pond with a biological filter (as most of
you will) does it return water via a pipe at the top of the filter (or the
bottom) falling strait back into the pond?
It probably does, but let me ask you this. Is it noisy?
no of course it isn't or is it? Suppose your pond is in a courtyard
or similar do you realise that the sound of the outlet water hitting
the surface will be amplified especially when the ambient noise (traffic)
level falls in the evening, have you considered your neighbours? To you it
is nice and an essential part of your pond to them its gushing water that
is annoying.
What can you do to stop the noise? Put it on a timer?
NO! all biological filters should run 24 / 7 ( You may wish to see
this )
Most biological filters the outlet is a standard pipe
size, so the simplest and cheapest thing to do is to add a bend onto the
outlet and a new pipe from the bend to just above the water surface as I
have shown below

If your filter outlet pipe is not a standard size you
have 2 choices. Either remove the pipe and make the hole to a standard
pipe size (best idea) or put a bigger pipe over the whole outlet and fix
with silicone on the inside of the new pipe.
You could also install a "water fall" instead, but one
which starts from just under the filter outlet and finishes just above the
water surface
But what about pond aeration i hear you ask? that's the
point of having the outlet high up to aerate the pond. I would recommend
that you install a fountain in your pond as not only will this
aerate the water it will also look very nice, but do put the fountain on a
timer NOT a photocell as the daylight will mean it will start in the
early hours.
You may think i am talking rubbish but put yourself in
your neighbours shoes, you are creating a nuisance
see here