That's why I opted not to make any holes in my bog liner for plumbing. Liner material is too flexible to trust any seal in my opinion.
My plumbing goes over the wall between the pond and bog. It's then covered with stones. You can only see a short portion of the black flexible PVC exiting the water surface of the pond. The rest is covered by stones. Most people wouldnt even notice it. Especially since it's black.
All my plumbing is within the pond and bog. If there's ever a plumbing leak, no water can escape the system. Call me paranoid, but at least I can sleep at night knowing my pond will never drain due to a plumbing failure.
Yeah that's probably what we should have done.
I'm definitely wondering what side of the fence to be on with putting a drain in the bottom of the pond with said frustration of the bog.
I've read several posts on this forum on that as well. It's def. a hot topic.
From what I've read, a bottom drain is best for our pond for a couple of reasons.
1) I really have given thought to what fish I want. I only have 1300 gallons between the bog and the pond. I've looked at shubikins and other fish.
The only fish I really want is koi. (Sorry to shub lovers out there) I know koi get 3' long and I'm totally ok with only having 2 fish.
Personally I'd rather have 2 fish that I love, than 10 fish that are ok. So a bottom drain will be helpful to get their crap out to the bog.
2) my daughter (13 yrs) wants to occasionally get in the pond with the fish and will probably freak out if there's is sludge at her feet.... so bottom drain.
Ok I'm braced....ready for feedback!