are your holes on the bottom? how much gravel are you putting under and what total depth of gravel in the bog?Picked up some pea gravel today and will wash it before laying it into the bog. Put the manifold in for a test fit but am thinking I need to dig down a few more inches which I will do tomorrow as it’s pouring rain here. Need to look at how far off the bottom the manifold should be as I have read different things.View attachment 121796
Great progress, keep sharing