mark wrote:
hi can I use silicon to fill in the cracks in my waterfall,I want to use
silicon so the water will not run down the cracks but flow over them,should
I still use a liner. I'm a newbee to the waterfall so any advice on water
flow is appreciated.



Yes, if it is pure silicone and has no ingredients to
inhibit growth of mildew. GE makes a clear silicone
which is great.

--
Bonnie
NJ
http://home.earthlink.net/~maebe43/