TITLE: Resolved Question: pond design question?
Question

val k asks : ()

I am thinking of adding a pond to my yard. I like the shape of this one, sort of looks like a "Y" shaped pond design  because where I would put it has something of a Y shape. I want to keep some goldfish in it, but I don't think 100 gallons is very big for fish and plants. I though about using just a flexible liner, but I worry about it getting a hole and the fish having no water.

Is it possible to use the premade one at the bottom and just sinking it about twice as deep, then using a liner inside so that if it does tear, the premade pond would still hold the fish and some water? Has anyone ever tried this? Or am I just worrying too much? I'd like something about 200-300 gallons total for the pond, plus a little waterfall at one end. Any suggestions on filters, UV, pumps as far as brands to buy or stay away from? Answers

T C :

Smart girl, the liner installed the way you said is perfect! buy a pump that stays under water and pushes water out (sump pump) rather than one designed for a pond. They are built tougher and are cheaper. Madame M : (2 years ago)

I think it would work. But I also think you are worrying a bit too much -- if you spring a leak, you've still got the ground there, so the water will go down little by little -- it won't drain like a bathtub. As long as you check the pond every day (and you will, to clean it and appreciate it), you should be able to notice if there's some hole in it. Then you can put the fish in buckets if necessary while you fix the hole.

I just saw an article in Better Homes and Gardens about a water pond that had a waterfall feature. They fed the hose right through the liner, and just made sure the two liners overlapped -- there was no sealing or fancy caulking to make sure it didn't leak. So I think the liners are better than you are thinking.

If you go with a pre-made one, though, I don't see any reason why you should go for a liner on top of that. A pre-made one shouldn't leak at all.

I'm just an armchair expert, here -- I want a water feature and have been doing some research on it here and there.