i'm sorting soem guys pond out or him as he doesn't have a clue
its a big 10k litre to 15k litre
i'm not sure hwat the filter is caleld so i have included photos of the filter and all pipes

http://i2.photobucket.com/albums/y49...t/IMAG0048.jpg
http://i2.photobucket.com/albums/y49...t/IMAG0049.jpg
http://i2.photobucket.com/albums/y49...t/IMAG0050.jpg
http://i2.photobucket.com/albums/y49...t/IMAG0051.jpg
http://i2.photobucket.com/albums/y49...t/IMAG0052.jpg
http://i2.photobucket.com/albums/y49...t/IMAG0053.jpg

can anyone help me by telling me how to work this filter?
i need to empty all the water out of it as it has been left turned off for a long time and its very dirty and smelly
does anyone know how to do that?