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Thread: Boulder waterfall leaking... Looking for sealer suggestions.

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    bproosow's Avatar
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    Boulder waterfall leaking... Looking for sealer suggestions.

    The water comes in through a 2" pipe at the top, drops down one level to a small pond-like area (about 2'x3') before going over into the pool. This is about 30 years old and probably has been patched a few times with mortar or possibly hydraulic cement. I noticed (after cleaning it out) that the bottom of the small pond it was sealed with something, black and looks like it may be rubberized. Hard to say. I was about to use hydraulic cement, but after getting a closer look and reading the label, it really isn't suitable as I don't think just going into the joints between the boulders would be sufficient. It also can't be used as a skim coat (which is what I want to do) and you have to chase the cracks to a minimum of 3/4". That would literally mean cutting through boulders. Not going to happen, so that's out. I'm quite sure that I need to cover up the joints with a sealer like what is in the bottom. I've thought about using roofing cement (which would definitely be waterproof) but it warns that bits of asphalt will erode away in water and become water soluble. I'm really not looking forward to more junk getting into the pool-- I have enough as it is. I've seen products like Pond Armor, which is an epoxy sealer, that look like they would probably work. I've also seen various types of pool paint. I know I can walk into a local pool store and pick up a gallon of paint (although maybe not in black). Just not sure what would work best here, so I'm looking to see if anyone has had similar issues and has found a practical solution. I really need to get this fixed, as I'm having to top off the pool probably 2 inches a week (approximately 14x30 pool). Sorry about the poor quality picture. I can get better pics if anybody needs them, but at the moment it's all I've got.

    Also, as long as I'm asking, does anyone know of a good sealer that might freshen up the look of the boulders? They're in several areas around the pool, and just look kind of dull.

    Thanks!

    waterfall.jpg
    20K gallon in-ground free form gunite pool with moss rock waterfall and GREEN plaster! Built circa 1984. Pentair 1hp Whisperflo pump, Clean & Clear Plus 420 cartridge filter (both new in 2011), Barracuda G3 pool cleaner and Interfab X-Stream slide.

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    bproosow's Avatar
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    Re: Boulder waterfall leaking... Looking for sealer suggestions.

    Bump. Anybody have any ideas?
    20K gallon in-ground free form gunite pool with moss rock waterfall and GREEN plaster! Built circa 1984. Pentair 1hp Whisperflo pump, Clean & Clear Plus 420 cartridge filter (both new in 2011), Barracuda G3 pool cleaner and Interfab X-Stream slide.

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    Re: Boulder waterfall leaking... Looking for sealer suggestions.

    I've used Pond Armour. It should work here. Just be sure everything is dry when you apply and you go over everything beforehand with a wire brush.

    To brighten your rocks, try the wire brush on the back side of one and see if that works.
    22k gallon IG pebblefina, Jandy 1.5 HP VS, Jandy CV Cartridge filter, Fafco solar panels, Polaris 360 supply side cleaner, waterfall

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    Mod Squad jblizzle's Avatar
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    Re: Boulder waterfall leaking... Looking for sealer suggestions.

    You should see the number of grout patch jobs on the ugly rock waterfall former owners built at my house. Leaks like a sieve and I am not sure what can be done to seal it up.
    Jason, TFP Moderator
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    bproosow's Avatar
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    Re: Boulder waterfall leaking... Looking for sealer suggestions.

    Well, I ordered the Pond Armor kit in tan. Will give an update after it's all done. Thanks for your help.
    20K gallon in-ground free form gunite pool with moss rock waterfall and GREEN plaster! Built circa 1984. Pentair 1hp Whisperflo pump, Clean & Clear Plus 420 cartridge filter (both new in 2011), Barracuda G3 pool cleaner and Interfab X-Stream slide.

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    bproosow's Avatar
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    Re: Boulder waterfall leaking... Looking for sealer suggestions.

    UPDATE: I did order the Pond Armor but after some more research and consideration, I've decided not to use it after all. I found a reputable and very experienced waterfall subcontractor (30 years building in the area) that works with several pool builders in the greater Sacramento area. He's going to rebuild the whole thing and give it a new look and style. It currently just goes down a single ledgestone spillway into a small pool area (about 6-10 inches deep) before it drops through another set of spillways into the pool. He's going to build it up to be more of a proper waterfall, where the water will go down over more rocks and eliminate the mini-pool at the bottom (which basically does nothing except collect large amounts of dirt.. but the dogs like sitting in it when it's hot). The price was pretty reasonable and I just don't think I'd be happy with the results doing it myself with the pond armor or any other paint-on type of product. He's also giving me a 5 year warranty against leaks. Can't beat that! I'll try to get some pics of the before, during and after.
    20K gallon in-ground free form gunite pool with moss rock waterfall and GREEN plaster! Built circa 1984. Pentair 1hp Whisperflo pump, Clean & Clear Plus 420 cartridge filter (both new in 2011), Barracuda G3 pool cleaner and Interfab X-Stream slide.

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    Re: Boulder waterfall leaking... Looking for sealer suggestions.

    Who was your contractor for rebuilding the waterfall? I have very similar problems with my waterfall, and I'm in the Sacramento area.

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    Divin Dave's Avatar
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    Re: Boulder waterfall leaking... Looking for sealer suggestions.

    Engineer_D,
    I sent you a PM. Click on Notifications which is under the Pool School Button.

    Thanks
    Divin Dave,
    IG Vinyl, 15' x 30', 3 1/2' - 6' deep, Oval, ~15K gal, Intelliclor IC40, Intelliflo VS pump, Clean and Clear 420 Filter, auto-fill-disabled, Retrofit LED Color Light, Dolphin Nautilus Robot, TF100 Test Kit, Taylor K1766 Salt Test Kit, Tftestkit Pressure Gauge.
    www.tftestkits.net Experience- it's what's learned just after you needed it most !!

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    bproosow's Avatar
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    Re: Boulder waterfall leaking... Looking for sealer suggestions.

    Quote Originally Posted by Engineer_D View Post
    Who was your contractor for rebuilding the waterfall? I have very similar problems with my waterfall, and I'm in the Sacramento area.
    Sent you a PM.
    20K gallon in-ground free form gunite pool with moss rock waterfall and GREEN plaster! Built circa 1984. Pentair 1hp Whisperflo pump, Clean & Clear Plus 420 cartridge filter (both new in 2011), Barracuda G3 pool cleaner and Interfab X-Stream slide.

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