If you have a cylinder with radius 390in and height 4 in what is the volume?
The volume is 1,911,300 cubic inches.
What size pump do you need for a 165 gal fish pond?
For most ponds with fish you need to circulate the total volume of the pond once per hour. So for a 165 gallon pond, you theoretically need at least a 165 GPH (gallon per hour) pump. However, not all pumps are created equal, and the flow rate of pumps is usually rated at zero head pressure and with nothing attached. So a 165 GPH pump on the bottom of a 2 foot deep pond with a few feet of tubing and maybe a water feature or waterfall could reduce that 165 GPH to perhaps 100 GPH or less. So for a 165 gallon pond, you would probably want to look at 250-350 GPH pumps. If you have an above average fish load or a large waterfall or stream attached, you may want to go even larger.
How can you tell if your uv sterilizer is working in your pond?
Check the lamp: If the lamp is not glowing, it may be a sign that the lamp is bad, the ballast (transformer) is bad, or there is an electrical problem.
Check the ballast: If the lamp is not burning and it's not an old lamp, the ballast (transformer) may be bad. Be careful not to break it, as it's one of the more expensive parts of the unit.
Check the sleeve: Cleaning the sleeve can make a big difference in pond clarity. Make sure it's not clogged or dirty.
Check the pump intake: Ensure the pump intake is not near the water return point or waterfall, as this can reduce circulation and filtration.
Check the UV lamp: Depending on the type of UV lamp you have, you can easily check if it's working by looking for a glow or using a UV tester.
Wait for results: It may take up to 24 hours to see the physical effect of the sterilizer, and up to 48 hours to complete its work if you're using it to clear green ponds.
Monitor water clarity: A properly installed and designed UV sterilizer can help maintain clear water in your pond or aquarium.
Well, i'm pretty sure that it is not something you would want to ingest, but i'm also fairly confident that it won't killyou, but if you did ingest it, I would get help immediately.
Is a pond mold fungi or algae?
A pond can have both fungi and algae. Fungi can appear as mold on decaying organic matter in and around the pond, while algae are photosynthetic organisms that can be found in the water, often creating green blooms on the surface.
Who was the scientist to describe animalcules he observed in pond water?
The scientist who first described animalcules observed in pond water was Antonie van Leeuwenhoek, a Dutch scientist known as the "Father of Microbiology." In the 17th century, he used microscopes of his own design to observe and document microscopic organisms in various samples, including pond water.
Single-celled algae in a sunny nutrient-rich pond would likely have a higher rate of cell division due to the abundance of resources. This can be tested by measuring the growth rate of algae populations in both ponds over a period of time by counting the number of cells present. The algae in the sunny pond should show a higher growth rate compared to those in the shady pond.
Are water fountains germ free?
Public water fountains can be extremely dangerous in the number and kinds of bacteria that are found there. Some studies have found that water fountains harbor more germs than the water in a toilet bowl. People either throw trash in the fountain, spit in it, or put their mouths directly on the spigot.
What is an area of ground in a septic system that the water filters through called?
The area of ground in a septic system where water filters through is called a drain field or leach field. This is where the effluent from the septic tank is dispersed and treated by soil microorganisms before entering the groundwater.
Why does the water of a pond percolate through the soil making the pond dry?
Water percolates through soil due to gravity pulling it downward and the porous nature of soil allowing water to flow. If the soil is dry or if there is high demand for water from plants or evaporation, the water will continue to percolate through until the soil is no longer saturated. This can lead to ponds drying up if the rate of percolation exceeds the rate of water entering the pond.
Why do animals live in the ponds?
well really the only types of animals that live in ponds are like small fish , toads , tadpoles & those type of things . some of the time you might see a lizard in a pond but that's very rare . those animals live in the pond because that's where their feeding and living habitats are at and if they go anywhere else it may not support them like it does there . i hope that answers your question .
How deep should wires to an outdoor fountain be underground?
It's not a matter of how deep electrical wire should be buried. The wire should be protected by plastic or metal conduit and marked suitably above ground - buried utility. I am certain that you will be burying a water line to the fountain "below the frost line" for your area, so consider placing you electrical wires at the same depth.
What is the difference between a pond and a creek?
A pond is a stationary body of water that is usually shallow and smaller in size compared to a lake. A creek, on the other hand, is a natural stream of water that flows continuously in a channel. Creeks are typically narrow and shallow compared to rivers.
What are the abiotic factors of ponds and lakes?
· Abiotic
1. sand
2. rocks
3. sunlight
4. water
5. wind
6. depth of water
7. Temperature
8. pH
9. salinity (dissolved minerals)
10. pollution
11. Clay/mud
Pond water is typically neutral or slightly acidic, rather than being a base. The pH of pond water can vary depending on factors such as the presence of algae, decaying organic matter, and other pollutants.
What is the positive inpact humans can have on a pond?
Humans can positively impact a pond by maintaining water quality through proper waste disposal, controlling invasive species to preserve biodiversity, and creating habitat structures like nesting sites or shelter for aquatic life. Additionally, conserving the surrounding land can help reduce pollution runoff into the pond, ultimately benefiting the entire ecosystem.
What are biotic elements in the pond?
Biotic elements in a pond include living organisms such as fish, frogs, plants, algae, and bacteria. These organisms interact with each other and with the abiotic elements in the pond ecosystem to maintain a balance within the ecosystem.
How does a pond turn into a bog?
A pond can turn into a bog when excess organic matter, like leaves or algae, accumulates at the bottom of the pond. Over time, this organic matter builds up, eventually creating a nutrient-rich environment that supports the growth of bog plants like sphagnum moss. Gradually, the pond becomes shallower as the bog plants continue to thrive, eventually transforming the area into a bog.
Why does daylight get longer in summer?
Light takes 8 minutes to reach the face of the earth and during the summer time, earth is closest to the sun. When the Earth has rotated, not facing the sun, the light still needs to take time to reach the Earth but the Sun is not in the radius of our position so it is no longer directing sunlight towards us. Giving the illusion of longer daylight.
How is pond ecosystem damaged?
Pond ecosystems can be damaged by pollution from chemicals, such as pesticides and fertilizers, which can harm the plants and animals living in the pond. Additional threats include habitat destruction, invasive species, and sedimentation, which can all disrupt the natural balance of the ecosystem. Human activities, such as overfishing and water extraction, can also contribute to the degradation of pond ecosystems.
What living things are in a pond?
Ponds typically contain a variety of living things such as fish, frogs, insects, algae, plants, and bacteria. These organisms contribute to the pond's ecosystem by interacting with each other and with the water environment.