liner question

[cr8tivguy]

I started with a pretty big liner (15 X 25). My pond has three depths: 40 inches, 30 inches and 24 inches. As I started filling the pond to set the liner, I noticed some large folds on the bottom. I tried to spread them out, but because it's pretty deep and the sides are basically vertical, there is a lot of material and the folds are unavoidable.

I'm thinking about placing mexican river stone (3-4 inch diameter) on the bottom to help hold down the folds of rubber liner AND to hide them. What I've read is mixed on rocked bottoms. I do not have a bottom drain but will use two pumps (1 with a filter and UV, the other will direct water to the bio filter and waterfall).

I plan to only keep 5-6 Koi in the pond.

So what are your opinions on rocks on the bottom of the pond?

 

[dieselplower]

I wouldn't do it unless you were going to have water flowing through them. It gets disgusting. If you have to do it, id run a line with small holes drilled into it along the bottom to keep the water flowing there.

 

[DrCase]

The folds won't be that noticeable , maybe a few med size rock to hold a big flap down

 

[addy1]

This is a fold in my pond, a year after the build. It gets covered with dirt, algae etc, begins to look like a rock.

 

[cr8tivguy]

Thanks everyone! I'm going to avoid the rock on the bottom and just place some key stones to hold the liner down a bit.

Thanks!
Tim

 

[sissy]

you will not notice folds in liner after good muck forms on them.Rocks on the bottom I will never make that mistake again .Fisrt pond had rocks ,stunk WOW stunk

 

[addy1]

I had rocks in one pond, the muck, stink ..........yuck.............before I cleaned them out the string algae grew like trees out of the junk. Now no rocks.

 

[Dave 54]

Thanks everyone! I'm going to avoid the rock on the bottom and just place some key stones to hold the liner down a bit.

Thanks!
Tim

Tim as I posted on your other thread folds can harbour all types of nasty bacteria your best bet is to dig the hole larger to try and iron those folds out

rgrds

Dave

 

[HTH]

It is near impossible to not have folds.but you should be able to have most of them on the walls. It all depends on the shape of the pond. If you have folds on the bottom pull them out by emptying the pond and pulling the bottom smooth.