new pond

[HTH]

The stuff you need to join the liner may depend on what the liner is made of. How long is the seam ?

For joining long seams I would use whatever the people who make the liner recommend. I once changed a 10x50 into a 20x25 using the 'right stuff'.

If it is short I would use the polyurethane marine sealers talked about in other threads PL-something is one of them.

 

[rebelangel_3733]

the seam is no longer than 6-7 ft...just enough to join the two ponds together

 

[dieselplower]

Hi. Neat project. Hope you dont mind me giving my 2 cents. I would not have 2 seperate ponds there. If it were my property I would be considering a few things.
1. Knock out the concrete, have it hauled away, and have one big pond with one big liner. I would not want all those bends and curves etc to mess with.
2. Use the dirt from the new pond to fill in the concrete pond and use the left over dirt to build a 1' high rim around the new pond. This will increase your depth, gallonage, and prevent runoff from entering the pond.
3. Have both ponds but do not connect the liners. You could use the smaller older pond as a large bog filter area. Fill it with gravel and plants and run a pump from the new pond into the bottom of the old pond, which is now a bog filter. The water will rise from up threw the rocks and then it would overflow into the new pond. The bog pond would obviously have to be slightly higher for this to work. Once the plants fill in you will have a beautiful garden next to the pond and you wont have any ugly filters around.
What do you have planned as far as pumps and filters anyway? That looks like its going to be a lot of water.

 

[rebelangel_3733]

am thinking the old pond might just work as a bog area for the new pond...just have to build it up so level it all out

 

[dieselplower]

Great idea for sure

 

[shakaho]

I was thinking just the opposite of Diesel. Build up The sides of the new pond, and leave the old one low. Let the old pond be a water garden that is fed by overflow from the new one. Water lilies can grow there without being destroyed by fish.

 

[rebelangel_3733]

I have to build up the sides to the old pond because it is six inches lower anyway and filling it up about 10 inches with dirt before I put the liner into it