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 often should I change koi pond water?

• <div><p>A good rule of thumb is to change 5% to 15% of your koi pon&rsquo;s water every week. Partial water changes help keep your koi healthy, and replacing small amounts at a time prevents causing stress for the fish.</p></div>

Q: Do natural pools attract pests like mosquitoes?

• <div><p>Natural swimming pools are designed to deter pests, including mosquitoes. While any body of water can potentially attract pests, the natural filtration system keeps the water clean and constantly moving. Mosquitoes specifically are attracted to standing water, so the continuously circulating water in a natural pool makes it an inhospitable environment for them.</p></div>

Q: Can I install a pond myself?

• <div><p>DIY kits exist, but professional installation ensures proper filtration, landscaping, and leak-proof construction.</p></div>

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 often do you need to clean a koi pond?

• <div><p>Deep clean your koi pond at least once a year to keep your fish healthy and your pond in good shape. Water testing, debris removal, and partial water changes should be performed weekly. Seasonal professional service will ensure everything is clean and functioning properly.</p></div>

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Verified Reviews for Fountain Service pros in Mentor, MN

*The Angi rating for Fountain Service companies in Mentor, MN 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 Mentor, MN 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 December 15, 2025

Reviewed in December 2025
Our Chicken Coop needed a new roof. It took them only a couple of days even though they had to replace the wood in multiple spots due to rotting. I waited to write this review until the winter temperatures tested it out. Now I can say with confidence that they did an excellent job. Even in...
Grove Roofing Siding & Remodeling
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Reviewed in July 2025
They were very fast and professional. I would recommend Mad City for any window or bath install if you need it done. They are fair and honest with pricing and the staff is friendly and courteous!!! I will be calling them for any future work.
Mad City Windows & Baths
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Reviewed in February 2025
Yes they were amazing and had good customer service
Northern Winds Contracting, Inc.
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Reviewed in June 2021
We needed a 30 Amp outlet for our travel trailer, I contacted Mid Valley Electric and we had our needed work done within a week.
Mid Valley Electric
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Reviewed in April 2021
Went great!!! Got it done fast!
American Waterworks
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Reviewed in December 2017
Very responsive and professional. Will definitely use them for any future work.
HOTCO The Hot Water Heater Company, Inc.
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Reviewed in June 2016
Job was promptly completed and were very pleasant to work with.
Genesis Enterprises
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Reviewed in September 2014
Very good servce. Steve, the technician, was wonderful.
Francis Animal & Pest Control
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Fountains questions, answered by experts

A good rule of thumb is to change 5% to 15% of your koi pon’s water every week. Partial water changes help keep your koi healthy, and replacing small amounts at a time prevents causing stress for the fish.

Natural swimming pools are designed to deter pests, including mosquitoes. While any body of water can potentially attract pests, the natural filtration system keeps the water clean and constantly moving. Mosquitoes specifically are attracted to standing water, so the continuously circulating water in a natural pool makes it an inhospitable environment for them.

DIY kits exist, but professional installation ensures proper filtration, landscaping, and leak-proof construction.

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.

Deep clean your koi pond at least once a year to keep your fish healthy and your pond in good shape. Water testing, debris removal, and partial water changes should be performed weekly. Seasonal professional service will ensure everything is clean and functioning properly.

The Mentor, MN 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
How Much Does It Cost to Install a Fountain in a Pond? [2026 Data]
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How Much Does It Cost to Add a Waterfall to a Pool? [2026 Data]
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Regular outdoor fountain maintenance will keep your water feature looking and working great. Follow these tips to learn how.
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24 Water Feature Ideas for Your Backyard
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C.E. Larusso
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Jul 9, 2026Jul 9, 2026
5 Water Feature Design Styles to Incorporate Into Your Home
Dive into the details of the different kinds of backyard water features, including fountains, birdbaths, waterfalls, pools, ponds, streams, and spouts.