, ,

Are You Wondering How To Find A Leak In A Pond?

Products recommended in this post contain affiliate links. If you buy something through our posts, we may receive a commission at no extra charge to you. See our full disclosures here.

It feels great to have a pond in your home; it is comforting, soothing, and gives great vibes all around it. But it becomes a big concern when you constantly find out water coming out of it. The first thing that comes to the mind is that is there a leak in the pond? If yes, then how to find a leak in a pond? The process is simple, and you will be guided in the article about the various ways through which you can check the leak in the pond and how it can be fixed.

A leak in the pond is quite common and can be repaired by following some simple methods and techniques. Also, whatever the type of pond you have, leaking ponds of concrete, rubber, plastic, etc. all can be repaired. But, if the pond is too old and has multiple leaks, it is advised to replace the old pond with a new one.

Leak-In-A-Pond-2

Causes of Water loss and Methods to find a leak in the pond

If you have noticed that the water in your pond is decreasing over time, and are worried about what is causing this. Then stay tuned with the article because it will guide you about all the necessary information you need on this matter. There can be multiple reasons for your pond’s reducing water. The various causes and the methods through which the water loss can be check are given below:

1. Evaporation

Many of the people do not know this, but the water in the pond also gets evaporated in the heat of the sun. During the summertime, the heat of the sun is maximum, and the water naturally will get reduced due to the evaporation of the water.

The evaporation process usually decreases the water by 1 to 2 inches. If you want to check out if the leak is the problem with the pond, then fill up your pond fully. Observe the water level daily, and if the water is getting decreased more than the range,  then the pond might be leaking.

2. The damp area near the pond

In some instances, if the pond is somewhere near a damping area, then there is a possibility of water getting settled into that area. If there is a sudden decrease in the water of the pond, then this may be the cause of it. Check once if there is any such area around the pond.

3. Waterfall

If both the above options are checked and ruled out, then there may be a problem with the water stream through which water is coming to the pond. To check that out, shut down the water system for the pond and observe for some time if the level of the water remains the same or not.

If no, then there is a possibility of having a leak in the pond. But, if the level of the water stays the same, that means the water is not able to reach appropriately in the pond. To check that out thoroughly, inspect the pipelines and the connections and, most importantly, the pump or the waterfall through which the water is entering the pond. Most probably, you should find a problem there.

The below-given methods can be used to check how to find a leak in a farm pond.

4. Inspecting the edges of the pond

Sides of the pond and the liners are the places you should test next. A hole in a liner holds the very least probability because it is built, keeping these issues in mind. However, if the pond liner is not of high quality, then it might leak. You can check out the link to buy a good high-quality liner for the pond.

​Fish and Plant Friendly - High Value
  • Flexible Material Conforms to Shapes and Contours
  • non-toxic to fish and aquatic plants
  • Recyclable

Firstly, fill the pond with the water to the desired level. Then you need to visually inspect all the boundary lines of the liner to find out any leaks in it. Also, the possibility of the leakage is more in the places where there are tight turns. Check thoroughly every possible place where you can find a leak. Remember to check out the outside perimeter of your pond for any water spillage.

5. Shutting off the pump to find the leakage

Shut off the pump so that external water does not go into the pump and then wait for the water to get out of the leak. Notice the water level, and when you find that the water is stable and not getting low anymore, then check internally and externally the pond for any cracks or hole where you are getting the leakage from.

Pro Tip


Use a pond aerator to supply the oxygen to the fishes when the pump is shut off as it may take a day or two for the whole process, and fishes may face a lack of oxygen.

6. Using the milk method

This is a very commonly used technique that is very efficient in tracing crack and leaks in the pond. The only disadvantage of this method is that it can not be used in the ponds of huge sizes. To apply this method, you need to fill the pond to an appropriate level. Then add dye or milk in the pond. This way, you can trace the milk drawing towards the crack and can find out the leakage in the pond. This is the most efficient pond leak detection system.

Leak-In-A-Pond-3

Leak Test: What it is and How to do it?

A Leak test is a name given to a series of steps that will guide you on how to find a leak in a pond. To perform this test, follow the below-given steps:

Step 1. Checking the basic questions

Before starting the procedure, check if these two fundamental questions are valid to you. Firstly check, if there is a PVC check valve in your waterfall pump. Secondly, see if the bottom of the filter chamber is connected with the waterfall filter box. If both the points are right for you, then continue to the second step else you can jump directly to the third step.

Step 2. Checking the connections and the filter box

Firstly turn off the pump. Ponds that contain waterfall filter boxes and check valves should remain with full water level when turned off. Check the valve if the water does not stay whole in the waterfall filter box. If there will be any problem with the valve, it will start making noises, and you will have to replace it with a new valve. Check out the link to buy a new valve for the pond.

heavy-duty - high quality
  • provides a professional pump and plumbing connection inside skimmer filter systems
  • make pump and filter maintenance quick and easy
  • Height extendable for larger filters and pumps

If the level of the water in the waterfall filter remains the same at the edge of the waterfall box, then it means

  • The waterfall box and the connections are tight.
  • Plumbing happening in the underground is working fine.
  • The check valve and the plumbing outside the line are all ok.

Step 3. Checking the pond liner and mechanical skimmer connection

Keep the pump off and fill it with water to a needed level. Then mark the level of the water with a coin. Further, place the coin on a stone or a rock a little below the water level. The coin will remain dry if the water level drops below it, and if not, then it will keep shining.

If there is no water loss in the pond and is still full, then it means

  • The mechanical pond skimmer installed in your pond is all ok and working fine.
  • Pond liner is also fine.

Step 4. Check the waterfall stream

As explained earlier in the article, the waterfall stream can be a possibility of leaking of the water. If all the above-given steps are ok, then this should be the cause of the leakage. Once again, check your water stream and all its connection and the areas nearby it, the leakage must be somewhere around it.

Did You Know?

99% of the leaks are because of the settled liner and the water that is diverted over the edge of the liner.

Leak-In-A-Pond-4

Fixing a leaking Pond

Fixing a pond is a little easier than finding the leaks in the pond. A leaking pond can be set using the given steps:

1. Empty the water from the pond until the point where are crack is.

2. Then you need to buy a non-toxic pond sealer and prepare the pond’s surface as per the directions that are given on the pond sealer. You can buy a pond sealer from the given link.

​Water resistant sealant - Recommended
  • Safe For Fish
  • designed for use in water features
  • help direct the flow of water in waterfall, pond, & streambed construction

3. You would have to mix the sealer wit a hardening substance to increase the strength of it.

4. Then apply it to the cracks.

5.Let the mixture applied on the crack dry. It may take up to a day for this process.

Using these simple steps, you can repair the cracks and fix the leakage of the water of the pond. If the leak is not in the pond and any other equipment or pipe, then it needs to be replaced.

Video Introduction

Final Words

The provided information above in the article is enough to know how to find a leak in a pond. So start from the top, firstly check out all the methods through which you can find the holes in your pond, and once you can identify the area that is leaking, you can repair it with the given instructions. So, no need to panic anymore as you are now efficient enough to take this problem yourself.

Top Editor's Choice on Leak In A Pond

SaleBestseller No. 1
Bestseller No. 3
DamIt - Rapid Leak Sealer for Dams and Ponds 15L
Rural and Farm Dams,; Garden or Park Ponds; Golf Courses; Levee Banks; Irrigation channels/ponds
Bestseller No. 4
The Pond Keepers Guide: How to make a self-managing pond using Nature’s...
Nelson, Dr. Jim S. (Author); English (Publication Language)
Bestseller No. 5
How To Fix Leaking Fish Tank: Reseal A Leaking Aquarium
Amazon Kindle Edition; Clark, Harry (Author); English (Publication Language); 06/08/2018 (Publication Date)
Bestseller No. 6
Bestseller No. 7
The Home Water Supply: How to Find, Filter, Store, and Conserve It
Campbell, Stu (Author); English (Publication Language); 240 Pages - 01/10/1983 (Publication Date) - Storey Publishing, LLC (Publisher)
Bestseller No. 9
Intex 8.5' x 5.3' x 2.13' Rectangular Frame Above Ground Backyard Swimming...
Great outdoor fun for ages 6 and up; Easy to setup; Rust-resistant frame; Heavy-duty PVC and polyester 3-ply side walls
Bestseller No. 10
SUN CPF-2500 Grech Pond Bio Pressure Filter, UVC Upto 1600 gal, 13W
Able to cope with higher water flows compared to traditional gravity filters

Subscribe to our Newsletter!

Join our mailing list to receive the latest tips and news of our blog.

Leave a Comment

Previous

Best Pond Dyes That Control Algae & Won’t Harm Your Fish | Product Reviews

Best External Pond Pump (Non-Submersible) | Reviews and Buyer’s Guide

Next