Been reading some recent posts on sinking bog wood.Today I got quite a large centre piece of wood.So to sink it tried various rocks and weights etc.As it’s an unusual shape I couldn’t sink it.So I got a sealable freezer bag and filled with some spare gravel and made some small holes in it to release the air.It worked great just laid on a big bottom root like a sack.Job done.
Hope this might help someone. Now the wait begins.