Making a raised pond but looking for feed back!

[Ynott116]

I have a crappy paint blue print for you all and my idea.
so id like to make a 12' by 6' pond 6' deep at the lowest end.
I would like to do one 3'' bottom drain to a plywood water proof sump 8' by 30'' 2' tall
then run it back to the pond. I have been considering a retro bottom drain over the bottom drain/
I feel better cutting a hole for the bulk head on wood would fit me better.( Yes I get they dont work as well as a bottom drain but aare they really that bad?)
If I did a bottom drain yes I would cement it in but it would be on dirt. (over time I feel the cemented drain would want to go down as well slowly pulling the liner down with it)??
I am digging the hole then putting 2'' by 6''s boards above ground up on ground lvl anchored down,Also screwed in at all corners and every 4' i plan to anchor down 4'' by4''s to screw into.
Please let me know your thoughts!

Thanks!

 

[GBBUDD]

6' deep

Steps into a whole new light , Depending on the soil can make this very challanging

 

[Ynott116]

Steps into a whole new light , Depending on the soil can make this very challanging

now if I put 4b4 every 4' 2' lower then my 3' lvl cement them in and build 2b6 treated wood all the way up to say 3 feet above ground lvl. what are your thoughts on that?

 

[Ynott116]

Im open to ideas i just like the raised pond look and would live to have koi in it during the winter im in Ohio and we get some cold winter days and i hear ppl always say go 3'' deep

 

[GBBUDD]

In ohio i would build with 6x6, . Cinderblocks will require a FOOTING and excavating to keep the wall from flexing due to a freeze