Hello Chris ..
i use a airtech 75 on mine delivers 41 lpm @ 2 meter depth ..
have a look
http://www.absolute-koi.com/subcat38.html
if you buy a really cheap pump ..non descript make.. you probably wont get it to pump at that depth ..or even look out for what your after on ebay ..
Max

Hi Max,
Can you give me some advice, i've posted in chat but no one has answered, I'm after some advice with what size air pump should i use on my bottom drain, my pond size is 4400gallons and the depth is 6ft7" i was thinking about a pump with 40lph, but i don't have a clue if this is too much or not, hope you don't mind me asking you.
Thanks for your time and advice.
Chris

no problem, thanks for the interest

Bit far away ..sorry Geoff liked them all but he lives just outside London. worth asking though :o)

Yery Nice ..

hi there. i live in a town called pickering i north yorkshire. nearest big places are scarborough and york if that makes it easier for you.

where are you based ??
i know someone who may be interested in your koi
Max

awe so sweet ..

Thanks Nathan ..LOL
I have been told it has come across very well ..which is nice.
Even James was pleased with the article..
Still have lots to do for the national ..busy busy ..and more fish to collect tomorrow ..anyway ..must go i have a vat to go muck out take care
Max

hi max,
great article in this months koimag mrs.
keep up the good work, your doing us proud.

cheers, nathan...

Hi Max,
Thanks for that, money is a little tight at mo, so will aim for a system like that, or keep an eye on ebay for some second hand stuff.

I've seen on ebay fuild bed systems, all saying that they are good to add to existing systems for extra bio filterations, i guess i would need a pressurised system, what is your knowledge and advice on these systems.

And where would i add one to my existing system, on the main filter which is neuxs 200 and sand filter. Or on my skimmer system?

Chris

stunning Mark .. i would love to see a pond full of these ..would be amazing