Help: Leaking pnd

Hi,
I have a bit of a problem....
The pond has cracked..... big time!!
Is there a easy way to fix this? Don't feel like diggig the whole thing up........ pond liner painted with bitchumim(spelling, ja I know)??
Any adivice,tips would be appreciated!!
Thanks

 

Clean out "Vrot" cement around crack.... Fill crack with Expandafoam(cut excess off with knife after it's set)... over this goes Geomembrane and lots of layers of Bitumin.... Go for a product called ABE Superlaykold and it's specific membrane.

 

+1 for another great post by azurekoi

 

I would do it exactly as Shawn said.

For a quick fix, (let's say it's draining fast, and you have fish in there that you need time to rehouse/locate...) Pratley's standard setting Normal putty (red and white box) will cure under water and seal.