Hi - not technically a pond but not sure where else to post so apologies if not relevant - just tell me....

I have a water feature that includes a waterfall coming through a sleeper dropping about 50cm onto large stones and then into the liner which is about 40cm deep. About 10cm below the top of the liner is a metal grill that is used to support additional stones. This creates quite a nice overall effect.

For water pumping/filtration I have a small pump in the liner and a hozelock 4500UK filter embedded into the ground just behind the waterfall.

This all works just fine except for the stones keep getting green slime. I have just emptied the whole thing and am cleaning the stones before geting this all setup again. Any suggestions as to how I can keep the green slime away? My thoughts so far:

1 - have a fine net under the stones so I can periodically remove them and lift out the net + whatever leaves etc may have fallen in and started to decompose.
2 - have my daughter more frequently collect the leaves etc from the stones!
3 - use a chemical of some kind to help breakdown the leaves etc - I brought something from the garden centre to do this - must find that.

As there are no fish and little chance of birdlife I don't mind using chemicals etc. All ideas appreciated.

Thanks
Adam

Should have been 4500UV - Ultra violet

On Sun, 2 Mar 2008 10:31:58 CST, Stylo
wrote:

As there are no fish and little chance of birdlife I don't mind using
chemicals etc. All ideas appreciated.

I'd simplify the filter a bit, so it would be more of a strainer that
is easier to clean and treat it like a pool, with pool (type)
chemicals. Even if you have birds, during warm weather, you can put
in a chlorine bleach at night and the birds aren't bothered by it the
next day. I have a yard fountain 30gal and I use a cricket bait
bucket to filter the pump and I use a bit of laundry bleach when
needed. The birds use mine and there is no way I can keep it clean
without brooming out the basins and starting over with a new batch of
water.
--
Hal Middle Georgia, Zone 8
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Treat it like a pool - use pool chemicals or plain laundry bleach - just add
enough to get the effect you want, don't just dump a jug in - my bird bath/
fountain only need about 1 cap full weekly ( holds about 5 to 10 gal of
water)
Gale :~)
"Stylo" wrote in message
...

Hi - not technically a pond but not sure where else to post so apologies
if not relevant - just tell me....

I have a water feature that includes a waterfall coming through a
sleeper dropping about 50cm onto large stones and then into the liner
which is about 40cm deep. About 10cm below the top of the liner is a
metal grill that is used to support additional stones. This creates
quite a nice overall effect.

For water pumping/filtration I have a small pump in the liner and a
hozelock 4500UK filter embedded into the ground just behind the
waterfall.

This all works just fine except for the stones keep getting green
slime. I have just emptied the whole thing and am cleaning the stones
before geting this all setup again. Any suggestions as to how I can
keep the green slime away? My thoughts so far:

1 - have a fine net under the stones so I can periodically remove them
and lift out the net + whatever leaves etc may have fallen in and
started to decompose.
2 - have my daughter more frequently collect the leaves etc from the
stones!
3 - use a chemical of some kind to help breakdown the leaves etc - I
brought something from the garden centre to do this - must find that.

As there are no fish and little chance of birdlife I don't mind using
chemicals etc. All ideas appreciated.

Thanks
Adam




--
Stylo

Great thanks for that - an effective and cheap solution!

There are also algecides that would do the trick for you.

Jim

Perhaps when the weather forecast is for hot, dry and low humidity, switch the waterfall off, let the area dry out for a day or two, long enough for the algae to dry out and die.

If you are a dab hand with calculating a safe ppm dose of copper sulphate and mist spray to damp the area of the drying algae only, leave it to soak in for a couple of days, that would really decimate the algae coating. Copper sulphate turns to inert copper carbonate after a couple of days.

The dried out cotton like debris would probably blast away easy with a harsh mist spray

Regards, andy
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