is 18 inches ok in winter?

[addy1]

Good job, from what i have read, try to keep the deepest water undisturbed in the winter, to maintain what warmth it has. Maintain the thermal layer.

 

[shakaho]

I lived in northern NY, about 20 miles south of the Canadian border. We piled bags of leaves over our carrots and other root crops in the fall, and could pull off the leaves in February and pull carrots from unfrozen ground. I just wanted to point out how effectively bags of leaves insulate. Your deeper pond, insulated with leaves, should be fine.

 

[stroppy]

you could also put a plastic type cover over it to help keep the cold off

 

[pondbuilder13]

24" is deep enough but we had to re-due our pond too and it was a very big job we had a backhoe and all that jazz but it was funn!

~marino~