How deep should a koi pond be?

• <div><p>A koi pond should be at least 5 feet deep to keep the fish healthy and ensure they don’t freeze in winter. Koi fish are also known for growing large, so the more room you have, the better. A larger <a href="https://www.angi.com/articles/koi-pond-sizes.htm">koi pond size</a> will allow the fish to grow bigger than a smaller one will, and the more fish you have, the bigger the pond you’ll need. Learn <a href="https://www.angi.com/articles/how-build-pond.htm">how to build a pond in your backyard</a> to ensure it remains functional and aesthetically pleasing for a long time.</p></div>

How do I maintain my pond?

• <div><p>To maintain your pond, you’ll need to occasionally <a href="https://www.angi.com/articles/how-clean-your-backyard-koi-pond.htm">clean your backyard pond</a>, especially if you have koi fish. Test the water twice a week to make sure your fish have everything they need and always remove visible debris.</p></div>

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Q: How do I maintain my pond?

• <div><p>To maintain your pond, you&rsquo;ll need to occasionally <a href="https://www.angi.com/articles/how-clean-your-backyard-koi-pond.htm">clean your backyard pond</a>, especially if you have koi fish. Test the water twice a week to make sure your fish have everything they need and always remove visible debris.</p></div>

Q: How many years does a pond liner last?

• <div><p>Lifespans vary by material and manufacturer, but pond liners last anywhere from 10 to 75 years. For example, polyvinyl chloride (PVC) pond liners have a life expectancy of up to 20 years. Other types of pond liners, including those made of high-density polyethylene (HDPE) and ethylene propylene diene monomer (EPDM), can last 40 to 50 years.</p></div>

Q: What are the benefits of adding a water feature?

• <div><p>Water features enhance aesthetics, improve outdoor ambiance, and provide a soothing, tranquil atmosphere.</p></div>

Q: Can I install a water feature myself?

• <div><p>DIY kits are available, but professional installation ensures proper water flow, electrical safety, and leak prevention.</p></div>

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Verified Reviews for Fountain Service pros in Warner, SD

*The Angi rating for Fountain Service companies in Warner, SD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Fountain Service needs.

*The HomeAdvisor rating for Fountain Service companies in Warner, SD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Fountain Service needs.

Last update on February 10, 2026

Reviewed in February 2026
Had a tricky drain that was clogged from two different drains. Jeff and Cody came out and cleared both drains in an hour. Professional, fast, and reliable service!
SEWER DUCK
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Reviewed in February 2024
This past summer, Mark and MWR, built two large rooms on the first floor of our building. Iâ ¨discovered a few things: 1) Mark believes in excellence, 2) Mark is a man of his word, 3) Mark has connections with many other contractors who are excellent likewise. MWR kept the spaceâ ¨safe and clean...
MWR Construction, LLC
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Reviewed in October 2023
He was prompt and was able to begin the project the same day of the initial contact.
Huerta Tree Service
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Reviewed in May 2023
They were quick, did great work and made sure to clean up when they were finished.
Pro Concrete Raising
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Reviewed in February 2022
This chimney cleaning company exceeded my expectations! I will be calling them every time I need their services. Thumbs up for Dryer Vent Cleaning Safe house
Safe House
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Reviewed in June 2021
He did quality interior work for me, he paid attention to detail, and left me with a quality product and outcome.
Upstate Renovating
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Reviewed in June 2021
The careful tree removal was pretty awesome .. Good job
Dakota Tree Company, LLC
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Reviewed in April 2021
I went with a different company that works close with my Electrical person
Leeco Plumbing, LLC
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Fountains questions, answered by experts

A koi pond should be at least 5 feet deep to keep the fish healthy and ensure they don’t freeze in winter. Koi fish are also known for growing large, so the more room you have, the better. A larger koi pond size will allow the fish to grow bigger than a smaller one will, and the more fish you have, the bigger the pond you’ll need. Learn how to build a pond in your backyard to ensure it remains functional and aesthetically pleasing for a long time.

To maintain your pond, you’ll need to occasionally clean your backyard pond, especially if you have koi fish. Test the water twice a week to make sure your fish have everything they need and always remove visible debris.

Lifespans vary by material and manufacturer, but pond liners last anywhere from 10 to 75 years. For example, polyvinyl chloride (PVC) pond liners have a life expectancy of up to 20 years. Other types of pond liners, including those made of high-density polyethylene (HDPE) and ethylene propylene diene monomer (EPDM), can last 40 to 50 years.

Water features enhance aesthetics, improve outdoor ambiance, and provide a soothing, tranquil atmosphere.

DIY kits are available, but professional installation ensures proper water flow, electrical safety, and leak prevention.

The Warner, SD homeowners’ guide to fountain services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles

Angi
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May 3, 2026May 3, 2026
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10 Outdoor Fountain Maintenance Tips to Keep Your Water Feature in Top Condition
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Aug 19, 2026Aug 19, 2026
Waterfall and Fountain Installation: Everything You Need to Know
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May 21, 2026May 21, 2026
How to Hire a Waterfall or Fountain Installation Pro
Learn how to find and hire a qualified waterfall or fountain installation professional for your outdoor water feature project with expert tips and questions to ask.
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Jul 8, 2026Jul 8, 2026
Fountains vs. Ponds: Comparing Water Features for Your Landscape
You plan to add a water feature to your property but are deliberating between putting in a fountain or a pond. To help you decide, read on.