Floating Pond Liner *NOT GOOD* What to Do?

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Floating Pond Liner *NOT GOOD* What to Do?

Post by Burb » Fri, 05 Sep 1997 04:00:00



        I dug my first pond this year.  Twice we have had bad rains and the
liner has floated up and dumped my water out.  I assume it is from the water
running either under the liner or just the water in the ground.  

        Either way it is not good for the fish or my plants.  I have been lucky
enough both times to save most of my fish.  How can I stop this?  Are there any
other similar experience's.  Is this common?

 
 
 

Floating Pond Liner *NOT GOOD* What to Do?

Post by Matt Traha » Sat, 06 Sep 1997 04:00:00


Quote:

>         I dug my first pond this year.  Twice we have had bad rains and the
> liner has floated up and dumped my water out.  I assume it is from the water
> running either under the liner or just the water in the ground.

>         Either way it is not good for the fish or my plants.  I have been lucky
> enough both times to save most of my fish.  How can I stop this?  Are there any
> other similar experience's.  Is this common?

 You have several 'choices'.

 Move the pond to higher ground.

 or

 Fill it with a layer of cobblestones or a light layer of rounded "pea
gravel" or "river rock", both the "pea gravel" and "river rock" are
available from any mega-hardwarestore.
 This option has it's own (minor) hassles. In addition to the expense
and placement of the stones, you will have to be more careful about
debris settling in between the stones and creating anerobic (without
oxygen) bacteria. If too much muck is allowed to settle, and is later
stirred up, it can use up all the oxygen available to the fish.
 Some people swear by a layer of gravel, both for the looks and being
able to 'plant' things in it. Other people just swear at it. It's your
call.

 The problem you're having is called hydrostatic pressure. It's the same
reason people in New Orleans are buried in above ground crypts. (Casket
buried underground tend to float due to the high watertable.)

 Not sure about the french drains, that may work as well. (If I had to
move the pond to install the drains, I would just go ahead and move it
to higher ground.)

 BTW. all of this info is from reading other posts on the net. Except
the gravel part. I helped someone put a small pond together and she
insisted on gravel for the whole bottom. It looks good, and isn't
stirred up very much. Don't buy anything pretty that's too expensive. It
will be 90% covered by algea in a matter of weeks.

 Hope this helps


USDA zone 8, Sunset zone 31, northeastern N.C.

 It all needs doing... and I'm kinda focused in a scattered sort of way.

 
 
 

Floating Pond Liner *NOT GOOD* What to Do?

Post by shfw.. » Sat, 06 Sep 1997 04:00:00


Quote:


>>         I dug my first pond this year.  Twice we have had bad rains and the
>> liner has floated up and dumped my water out.  I assume it is from the water
>> running either under the liner or just the water in the ground.

>>         Either way it is not good for the fish or my plants.  I have been lucky
>> enough both times to save most of my fish.  How can I stop this?  Are there any
>> other similar experience's.  Is this common?

Yikes...that sounds really bad.  The advice you got in the previous
response is very sound indeed.  I would add that it MAY be possible to
install french drains along the SIDES of your pond, and deeper than
the deepest part of your pond, and that may alleviate your problem.
Much easier than moving the pond, not as easy as the gravel solution.
If you do go with the gravel, make sure to vacuum it regularly...you
do NOT want it building up muck.

MC

 
 
 

Floating Pond Liner *NOT GOOD* What to Do?

Post by Bob » Sat, 06 Sep 1997 04:00:00


Quote:
> I dug my first pond this year.  Twice we have had bad rains and the
> liner has floated up and dumped my water out.

Actually this is a clever technique that advanced ponders use to
automatically cleanout their ponds ;-).

Seriously, everthing everyone else suggested is true & good.
But you may have a simpler problem then hydrostatic pressure.
It could be a simple case of ground run-off that makes a little stream
of water on the SURFACE of your yard that runs under the edge of your
liner.

Next rain, take a look and see if its surface water getting under.
If so, you can build a ridge/curb/dam to make the water flow around your
pond & make sure liner edge is under ground and not just sitting on top.
If your whole pond is in a crater where water settles you need to build
up the whole pond area to make it a hill instead of a crater.

 
 
 

Floating Pond Liner *NOT GOOD* What to Do?

Post by B Walla » Mon, 08 Sep 1997 04:00:00


Quote:

>         I dug my first pond this year.  Twice we have had bad rains and the
> liner has floated up and dumped my water out.  I assume it is from the water
> running either under the liner or just the water in the ground.  

>         Either way it is not good for the fish or my plants.  I have been
lucky
> enough both times to save most of my fish.  How can I stop this?  Are
there any
> other similar experience's.  Is this common?

I answered earlier about the french drains, but thought I might add why I
put in  the drains.

There was a heavy rain after I dug the dry hole for the pond. Afterwards, a
number of shortlived springs appeared, *under* the place where the future
liner would be, and filled the pond. It drained a few days later, but it
was clear that those springs were going to push the liner up since there
was no where else for the water to go. It was a wake up call just in time.


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