"stricks760" wrote in message
hlink.net...
I wouldn't count on just the foam. It's supposedly something like 95%
water-blocking. My experience on a waterfall that cascades through three
pools with about 8' of drop substantiates this. In my case, the foam
directs
MOST of the water over the falls, but not all of it.

As far as what WILL work, I have no experience with this, but they make
those fake-rock waterfalls waterproof using concrete (textured with a
rock-like pad), then painted with waterproofing, then painted. Maybe you
could bridge the gap that way. You'd still have a joint between concrete
and rock though.You can't jack the flat rock up, and slip liner
underneath?


I'll probably go with the concrete. There was some white fiberous
waterproof concrete that I'd used before that would probably work. As for
jacking up the rock, the exposed part is 5 foot in diameter , although only
a few inches thick. If that's all, then I could probably jack it up, but I
have a feeling that's just the tip of the iceberg. We've got lots of rocks.
There used to be a quarry about a mile from here. When I dug my 20'x30'
pond, I could only go down 20" because it was one single rock for the entire
area. I had to raise the edge another 15" with the excavated dirt.

"stricks760" wrote in message
hlink.net...
I wouldn't count on just the foam. It's supposedly something like 95%
water-blocking. My experience on a waterfall that cascades through three
pools with about 8' of drop substantiates this. In my case, the foam
directs
MOST of the water over the falls, but not all of it.

As far as what WILL work, I have no experience with this, but they make
those fake-rock waterfalls waterproof using concrete (textured with a
rock-like pad), then painted with waterproofing, then painted. Maybe you
could bridge the gap that way. You'd still have a joint between concrete
and rock though.You can't jack the flat rock up, and slip liner
underneath?


I'll probably go with the concrete. There was some white fiberous
waterproof concrete that I'd used before that would probably work. As for
jacking up the rock, the exposed part is 5 foot in diameter , although only
a few inches thick. If that's all, then I could probably jack it up, but I
have a feeling that's just the tip of the iceberg. We've got lots of rocks.
There used to be a quarry about a mile from here. When I dug my 20'x30'
pond, I could only go down 20" because it was one single rock for the entire
area. I had to raise the edge another 15" with the excavated dirt.

Sorry, misunderstood your question. I thought you placing liner, then the
rock on top of it. But you're not moving the rock.

Okay, a couple of things.

I don't know what your flow rate is, but I think you would lose too much
water using the foam.

Can you pull the liner so it goes up the side of the stream and a certain
distance back up the underside of the rock so the underside of the rock has
liner on it? If so, apply some marine grade caulk to the underside of the
rock and the top of the liner and press the two together, then keep the
liner in contact with the big rock with smaller rocks.

I've used it before. It's a pain in the butt, but it sure sticks.

You might also try applying a bead of window or bathtub caulk along the
bottom edge of the rock before it gets to the liner. Apply it and then make
it into a "V" shape. When the water gets to this it may drip down into the
stream before it hits the liner.


Joe

On 3/16/04 12:07 PM, "grubber" wrote:

My basic question is, "Is it possible to make a waterproof join between the
pool liner and the immovable rock, and if so, how?"



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Sorry, misunderstood your question. I thought you placing liner, then the
rock on top of it. But you're not moving the rock.

Okay, a couple of things.

I don't know what your flow rate is, but I think you would lose too much
water using the foam.

Can you pull the liner so it goes up the side of the stream and a certain
distance back up the underside of the rock so the underside of the rock has
liner on it? If so, apply some marine grade caulk to the underside of the
rock and the top of the liner and press the two together, then keep the
liner in contact with the big rock with smaller rocks.

I've used it before. It's a pain in the butt, but it sure sticks.

You might also try applying a bead of window or bathtub caulk along the
bottom edge of the rock before it gets to the liner. Apply it and then make
it into a "V" shape. When the water gets to this it may drip down into the
stream before it hits the liner.


Joe

On 3/16/04 12:07 PM, "grubber" wrote:

My basic question is, "Is it possible to make a waterproof join between the
pool liner and the immovable rock, and if so, how?"



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-----== Over 100,000 Newsgroups - 19 Different Servers! =-----

Sorry, misunderstood your question. I thought you placing liner, then the
rock on top of it. But you're not moving the rock.

Okay, a couple of things.

I don't know what your flow rate is, but I think you would lose too much
water using the foam.

Can you pull the liner so it goes up the side of the stream and a certain
distance back up the underside of the rock so the underside of the rock has
liner on it? If so, apply some marine grade caulk to the underside of the
rock and the top of the liner and press the two together, then keep the
liner in contact with the big rock with smaller rocks.

I've used it before. It's a pain in the butt, but it sure sticks.

You might also try applying a bead of window or bathtub caulk along the
bottom edge of the rock before it gets to the liner. Apply it and then make
it into a "V" shape. When the water gets to this it may drip down into the
stream before it hits the liner.


Joe

On 3/16/04 12:07 PM, "grubber" wrote:

My basic question is, "Is it possible to make a waterproof join between the
pool liner and the immovable rock, and if so, how?"



-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 100,000 Newsgroups - 19 Different Servers! =-----

Sorry, misunderstood your question. I thought you placing liner, then the
rock on top of it. But you're not moving the rock.

Okay, a couple of things.

I don't know what your flow rate is, but I think you would lose too much
water using the foam.

Can you pull the liner so it goes up the side of the stream and a certain
distance back up the underside of the rock so the underside of the rock has
liner on it? If so, apply some marine grade caulk to the underside of the
rock and the top of the liner and press the two together, then keep the
liner in contact with the big rock with smaller rocks.

I've used it before. It's a pain in the butt, but it sure sticks.

You might also try applying a bead of window or bathtub caulk along the
bottom edge of the rock before it gets to the liner. Apply it and then make
it into a "V" shape. When the water gets to this it may drip down into the
stream before it hits the liner.


Joe

On 3/16/04 12:07 PM, "grubber" wrote:

My basic question is, "Is it possible to make a waterproof join between the
pool liner and the immovable rock, and if so, how?"



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Xref: kermit rec.ponds:140512

On Tue, 16 Mar 2004 20:07:53 GMT, "grubber"
wrote:

My basic question is, "Is it possible to make a waterproof join between the
pool liner and the immovable rock, and if so, how?"

I made a concrete liner to go behind my waterfall and sealed it to the
fiberglass formed pond liner below the falls with GE Silicon
glue/calk. Then stacked stones on top hiding the liner and the water
flows over the stones, but what follows the contours of the stones
and flows the wrong way is caught in the liner to prevent it escaping
the pond.

Regards,

Hal

Xref: kermit rec.ponds:140512

On Tue, 16 Mar 2004 20:07:53 GMT, "grubber"
wrote:

My basic question is, "Is it possible to make a waterproof join between the
pool liner and the immovable rock, and if so, how?"

I made a concrete liner to go behind my waterfall and sealed it to the
fiberglass formed pond liner below the falls with GE Silicon
glue/calk. Then stacked stones on top hiding the liner and the water
flows over the stones, but what follows the contours of the stones
and flows the wrong way is caught in the liner to prevent it escaping
the pond.

Regards,

Hal

Xref: kermit rec.ponds:140512

On Tue, 16 Mar 2004 20:07:53 GMT, "grubber"
wrote:

My basic question is, "Is it possible to make a waterproof join between the
pool liner and the immovable rock, and if so, how?"

I made a concrete liner to go behind my waterfall and sealed it to the
fiberglass formed pond liner below the falls with GE Silicon
glue/calk. Then stacked stones on top hiding the liner and the water
flows over the stones, but what follows the contours of the stones
and flows the wrong way is caught in the liner to prevent it escaping
the pond.

Regards,

Hal

Xref: kermit rec.ponds:140512

On Tue, 16 Mar 2004 20:07:53 GMT, "grubber"
wrote:

My basic question is, "Is it possible to make a waterproof join between the
pool liner and the immovable rock, and if so, how?"

I made a concrete liner to go behind my waterfall and sealed it to the
fiberglass formed pond liner below the falls with GE Silicon
glue/calk. Then stacked stones on top hiding the liner and the water
flows over the stones, but what follows the contours of the stones
and flows the wrong way is caught in the liner to prevent it escaping
the pond.

Regards,

Hal