This is my first pond over the septic pipes about 10yrs ago. At the time I dug this I thought it wouldn't really matter if those pipes ran right under the pond. I had a big hump in the the pond where the liner laid over the pipes.
Pond 1st summer
Right before winter one year......no more water lilies til next Spring
One cold snowy winter
Then as a few years went by I got to thinking about what if something were to happen to those pipes under that pond. So I decided to move the pond to the other side of the front porch path. Really just an excuse I used for hubby to get a bigger pond outta the deal,lol! It really works when you use problematic situations to hubby's cuz they always want to prevent catastrophe's from happening. It's just in their genes,lol!