Question
Hi there,

I'm planning to dig my own pond back of my house.
The pond size 9ft(L) x 3ft (W)x 2ft(D) .
How to build a inside filter that actually works inside the pond? If possible I thinking using one pump rather than two. Pls advice.

Btw, I had draw a diagram of my pond. If possible I would like to email it to you and let you have a look at it then you could able to advise me how to build up the filter.

Thank you very much.


Answer
Hi Kelvin,
Thanx for your question.  You don't have to build a filter that works inside the pond.  There are tons on the market at various parts.  Try pondmarket.com just for ideas.  Also, do a Google.com search for pond filters and you will have lots of material to look over.  I can't advise you how to build a filter as I am not an engineer but, I have used biological filters.  The last one I bought was around $130.00 but that was 10 years ago.  My guess is they are at least $200 or more now.  I don't have a mechanical mind so, I'm sorry I can't help you out in building a pump.  Most of these companies have a mechanism you can use that will tell how much of a pumping capacity you will need for your pond depending upon the dimensions of your pond.  I recommend using a liner as opposed to a preform.  Liners last longer.  I've had the same liner for about 10 years now and it is guaranteed for 20.  I hope this helps.
Tom