Pond Filters

Help fight bacteria

Question: I have an approximately 2000 gallon pond that has a 30 foot brook going into it. I have a Savio skimmer right now but know I need something else to help fight the bacteria. It has been recommended to me that I get a filter falls. Do you think that will be enough? My…

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Black sludge on gravel

Question: Hi, have a large pond(15000 gal) with a gravel type bio filter about 5ftx10ft x 2ft deep.My question is what is the black sludge that is in the gravel.Has been in operation 3 years and I flush the filter letting the water run into the grass.Is the black stuff bad or not,thanks,Richard Answer: The…

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Can filters be placed on the outside of the pond?

Question: I am looking at the Tetra back-flushable Filter. Can it be placed (on the outside of the pond) below water level? We have two ponds, one is in ground and the water goes to the filter and then enters the above ground pond where the water moves to a water fall and returns to…

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What is the easiest, lowest maintenance filtration system?

Question: I have a new (installed last fall), large (20′ X 40′ 4′-5′ deep) lined pond located in Northern Minnesota. I have a lighted floating fountain and a waterfall. I do not plan to have live fish of any kind and I currently have no filtration. What is the easiest, lowest maintenance filtration system I…

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What do I look for in a filter?

Question: Thanks for the advise concerning floating alge in my pond. I checked my ph and it is okay, so I decided to go for a larger filter. I looked at you tube but couldn’t make out what type of filter you had installed that kept the water so clear. My pond is 2000 gallons…

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Squirting water

Question: My Cyprio Pressurized filter is squirting water through the cleaning indicator at the top of the filter. Should I replace the indicator or buy a new filter? I’m concerned that this may be a clue to the filter going bad. Answer: Occasionally the little gasket where you screw in the indicator becomes worn or…

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Pond Filter Size

Question: I have a 1200 gallon pond. I also have a bog set up (1/2 whiskey barrel) filled with red bricks, pea gravel, and sand. I was wondering if that’s enough to keep the pond clean during the spring and summer. Thanks! Janice Answer: I am afraid the whiskey barrel will not be enough to…

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Tetra back-flushable Filter

Question: I am looking at the Tetra back-flushable Filter. Can it be placed (on the outside of the pond) below water level? We have two ponds, one is in ground and the water goes to the filter and then enters the above ground pond where the water moves to a water fall and returns to…

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When adding fish, do I need a pump/filter?

Question: good morning, I have recently acquired a pre- formed pond, which contains 300 gallons. I would like it to contain some goldfish, and aquatic plants. Is a pump alone enough or do I need a filter as well? Could you recommend what is best to keep a clean, healthy environment. Thanks for your time.…

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Pump filter always getting clogged

Question: Doc, I have a ~200 gallon Koi pond. The pump feeds the water to a slightly larger filter with UV. The problem I am having is that I am having to clean out the smaller filter attached to the pump on a daily basis. When it gets real hot, sometimes 2wice a day. I…

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