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#1
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newbee questions
hello all,
I've been reading and learning here for a few weeks. Two weeks ago I finally got my small pond in (my first one) It's 4'x6' 18" deep with a 30 gallon biofilter, bottom inlet, spilling into a 10 foot long stream that empties back into the pond. Well all of the water is flowing under the rocks in the little falls and I'm planning on using spray foam to seal the rocks so the flow goes over the rocks. I have about 20 little gold fish (15 one inchers and 5 two inchers) and a bunch of pond plants already in the pond. On Sunday I was planning on turning off the pumps and draining the stream (the filter has a check valve in line so it won't empty) removing the rocks and cleaning/drying the stream liner and reinstalling the rocks while using the spray foam. After I'm done with the foam and rocks and all looks good how long should I wait before turning the pump back on? Will the not completely set up spray foam hurt the fish or water? Will the foam be effective sticking to the wet rocks? Any other thoughts and/or tips? Thanks for any help, Pat |
#2
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newbee questions
Hi Pat,
What kind of foam are you using? Mark |
#3
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newbee questions
Mark,
I bought the "Great Stuff for gaps and cracks". But I could run out and get the black pond stuff a saw at the aquarium store that they sell for ponds if it would be better. But, I've read here and/or elsewhere that they are the same except for the color. The pond stuff is black and the "Great Stuff" is a white/yellow color. -Pat |
#4
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newbee questions
Hi Pat,
welcome to the group and thank you for posting! There are lots and lots of really great folks here. I hope you'll take the opportunity to continue to participate in this forum. Since you just installed your first pond 2 weeks ago, you're about to embark on an educational process. This will include such topis as ( to name just a few), ecosystem development and management. Aquaculture. Marine biology. Mechanical, chemical and process engineering and, of course, critterology. And, whether you realize it or not, you've also just aquired an additiction. You will never look at a body of water the same way again. The Great Stuff Pro website, http://www.dow.com/greatstuff/pro/products/basic.htm states that the foam is tack free in 6 minutes, you can trim it in 30 minutes and that it cures in less than one hour. Also I would ensure that you are using the polyurethane foam (cream color) and not the latex foam (white). Polyurethane will make a better seal. This website, http://www.dow.com/greatstuff/uses/index.htm states that it's used in ponds, waterfalls and boat applications. I would suggest experimenting with it first to get the hang of it. Take a few rocks from your stream, a leftover piece of liner and try bonding them together in a fashion similar to what you will be doing in your stream. I imagine you'll just be running a bead behind the rocks and not trying to completely glue each rock completely into position? If the rocks will be wet when you do your "real life" application, use wet rocks for your test. Lay the test liner on a board and prop up one end to achieve a slight decline, similar to your stream. Then apply the rocks and foam. When the foam has cured for an hour or so, wiggle the rocks to check if the Great Stuff bonded the liner and wet rocks. If that goes well, then run some water down your test setup with the garden hose. The water should be forced to run around the rocks and not go under them. If you do that today (7/19/03), you should meet your schedule of performing the task tomorrow. Since Great Stuff sealant is cream colored, if you plan to paint, allow time for that. I used pool paint and dyed it with concrete dye to achieve the colors I wanted. Check the drying time on the paint if you choose to use it. If it takes a day or so to completely cure, you can bypass your stream temporarily with a hose from your filter to keep circulation going for the fish if you want to. Our ponds are about the same size with about the same fish load. I've left my pump / filter completely off for two days while working on the system. There's plenty of air for the fish, although your bio-bacteria may suffer some. Goldfish are pretty tough. Mine have survived concrete-water run off, mud and other sundry abuses as I developed my pond over the last 2 years. Great Stuff touts that it doesn't contain any CFCs or solvents, and it's used in home heating and air conditioning. To me, that's safe enough. Personally, I'd go for it. When my fish see me coming, they probably think "Uh oh.....now what!?" The rest of the time they enjoy crystal clear water and a wealth of plant life to munch on. I hope this is helpful. Mark "O3raledale" wrote in message ... Mark, I bought the "Great Stuff for gaps and cracks". But I could run out and get the black pond stuff a saw at the aquarium store that they sell for ponds if it would be better. But, I've read here and/or elsewhere that they are the same except for the color. The pond stuff is black and the "Great Stuff" is a white/yellow color. -Pat |
#5
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newbee questions
Mark,
Thanks for all the great info. I'll take your advise and run that test tonight. (great idea BTW) I'll let you know how it all turned out for me. Thanks again, -Pat |
#6
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newbee questions
My guess is that Pat has already acknowledged "pond addiction"! Remember,
the initial post mentioned "small pond (my first one)"! Anne Lurie Raleigh, NC "Mark T." wrote in message ... Hi Pat, welcome to the group and thank you for posting! There are lots and lots of really great folks here. I hope you'll take the opportunity to continue to participate in this forum. Since you just installed your first pond 2 weeks ago, you're about to embark on an educational process. This will include such topis as ( to name just a few), ecosystem development and management. Aquaculture. Marine biology. Mechanical, chemical and process engineering and, of course, critterology. And, whether you realize it or not, you've also just aquired an additiction. You will never look at a body of water the same way again. The Great Stuff Pro website, http://www.dow.com/greatstuff/pro/products/basic.htm states that the foam is tack free in 6 minutes, you can trim it in 30 minutes and that it cures in less than one hour. Also I would ensure that you are using the polyurethane foam (cream color) and not the latex foam (white). Polyurethane will make a better seal. This website, http://www.dow.com/greatstuff/uses/index.htm states that it's used in ponds, waterfalls and boat applications. I would suggest experimenting with it first to get the hang of it. Take a few rocks from your stream, a leftover piece of liner and try bonding them together in a fashion similar to what you will be doing in your stream. I imagine you'll just be running a bead behind the rocks and not trying to completely glue each rock completely into position? If the rocks will be wet when you do your "real life" application, use wet rocks for your test. Lay the test liner on a board and prop up one end to achieve a slight decline, similar to your stream. Then apply the rocks and foam. When the foam has cured for an hour or so, wiggle the rocks to check if the Great Stuff bonded the liner and wet rocks. If that goes well, then run some water down your test setup with the garden hose. The water should be forced to run around the rocks and not go under them. If you do that today (7/19/03), you should meet your schedule of performing the task tomorrow. Since Great Stuff sealant is cream colored, if you plan to paint, allow time for that. I used pool paint and dyed it with concrete dye to achieve the colors I wanted. Check the drying time on the paint if you choose to use it. If it takes a day or so to completely cure, you can bypass your stream temporarily with a hose from your filter to keep circulation going for the fish if you want to. Our ponds are about the same size with about the same fish load. I've left my pump / filter completely off for two days while working on the system. There's plenty of air for the fish, although your bio-bacteria may suffer some. Goldfish are pretty tough. Mine have survived concrete-water run off, mud and other sundry abuses as I developed my pond over the last 2 years. Great Stuff touts that it doesn't contain any CFCs or solvents, and it's used in home heating and air conditioning. To me, that's safe enough. Personally, I'd go for it. When my fish see me coming, they probably think "Uh oh.....now what!?" The rest of the time they enjoy crystal clear water and a wealth of plant life to munch on. I hope this is helpful. Mark "O3raledale" wrote in message ... Mark, I bought the "Great Stuff for gaps and cracks". But I could run out and get the black pond stuff a saw at the aquarium store that they sell for ponds if it would be better. But, I've read here and/or elsewhere that they are the same except for the color. The pond stuff is black and the "Great Stuff" is a white/yellow color. -Pat |
#8
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newbee questions
Mark,
Thanks for posting the below info. It's reassuring to know the stuff is safe. -Pat The Great Stuff will work fine in your application. The surface area does not need to be completely dry since the foam cures by absorbing moisture. The cured foam is organic material so it will not harm the fish or plant life in any way. If you have any further questions please let me know. Regards, Sean Ramballie |
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