Re the "ground drain" you refer to. I was in fact referring to a "bottom drain"(s)for the pond (sorry that wasn't clear). I thought that if your pond didn't already have a bottom drain, it would be a great opportunity to install one and therby upgrading your system. You won't regret it.
If you are not familiar with bottom drains for ponds (?) you can find out more on the Pond Construction pages of Koi Cymru. http://www.koicymru.co.uk/constructb3.htm
Let us know how you get on. Photos help too.
Cheers, Mark
Posted on Jun 1, 2006, 11:05 AM from IP address 217.43.18.49