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  • Results 1 to 5 of 5

    Thread: Weeping and sealing

    1. #1
      berkokid is offline Senior Member
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      Weeping and sealing

      I have a couple questions.

      My waterfall basin is just a 100g or so and is filled via (2) 2Ē flanges. The water level rises and spills over a limestone spillway stone.

      1) As water spills over itís touching mortar in various places and the mortar is wicking water around the outside of the pond ... how can I deal with this?

      2) The spillway stone itself ... should it be sealed?

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      - Jonathan
      - aka "Berko"


    2. #2
      bloomz is offline Junior Member
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      I killed most of my fish a couple years ago using a quite small amount of Luster Seal 300 - probably about 1-2 square feet on sides of new waterfall.

      This was what we sealed my new driveway with and I had leftover and put it on the mortar. Not much bigger than your spillway area. Fish started dying like crazy, and I found PH had dropped below 6.

      I did just (couple weeks ago) use FlexSeal on a short 3 foot "river" to the other waterfall, but let it cure and "rinsed" it for a few hundred gallons before I let it run into my pond.

      If you do seal it, be very careful what you use. It was a disaster for me summer before last.

    3. #3
      Zac Penn is offline Supporting Member
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      Can you show pictures of where the wicking is taking place? Maybe you can grind the spillway so that the water is more controlled as it exits the spillway?
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    4. #4
      berkokid is offline Senior Member
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      Quote Originally Posted by Zac Penn View Post
      Can you show pictures of where the wicking is taking place? Maybe you can grind the spillway so that the water is more controlled as it exits the spillway?
      This is a good thought. Almost make it a bit concave ...
      - Jonathan
      - aka "Berko"


    5. #5
      berkokid is offline Senior Member
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      Updating this thread. I found two problems that needed to be fixed.

      1) There was a tiny tear in the liner in the front corner (a square corner) right by the spillway stone. What was happening was that when the pump was on, the waterfall basin would fill just enough for water to leak over. Surprisingly, or rather, perhaps unsurprisingly as the koi pond construction Gods tend to do this, the water overflowed into this tiny tear and traveled all the way back to the two entry ports where it leaked out. In this case, that's just the way the cookie crumbled. The back wall of the waterfall basin must be a fraction of a fraction of an inch lower than the front corner of the wall ... so it happens.

      2) Second issue, the connection to the autofill on the back of the skimmer on the opposite side of the pond was leaking. This one was very easy to find as it was pretty obvious based on where things were wet. So, pop off the stone veneer and redo it ...

      I decided not to seal the spillway stone. In all my research, it seems like there are two religions around the value and challenges of sealing and I couldn't get comfortable.
      - Jonathan
      - aka "Berko"


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