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