Question
I want to build a large pond for my koy and fishing.
The pond will be about 150' in diameter and about 8' deep, so I dont want to use a liner if I dont have to.
I have 3' deep top soil and then sand.
Can you help me or direct me to the right area to reserch this?  

Answer
Hi Van,
Sorry but not having dug a pond that large and especially in sand I cannot help but if you go to the links to koi and ponds page on my website I am sure you will find a link their that will help you sort your problem the address for my website is http://koi-z-are-us.20m.com
hope this helps
George.