Edging + Bog help

[GBBUDD]

Thats a personal call which do you like ? you don't have to worry too much about the pressures yes bog will weigh more then the pond water but i doubt it will be strong enough to make your wall fail

 

[addy1]

I should have mentioned was about cutting the excess of the foam I was asking for

Cut it leave it, does not matter, whatever you wish

 

[Spydon]

Progress shots of the pond and bog area. Soon waterfall will be completed and will post pics and video of the whole lot