Fredrick is a miniature-garden designer and author of landscaping guides. He loves to write about garden flowers, ponds, lawns, and hedges.
Like any other water feature, a waterfall suffers water loss mainly through evaporation and leaking. Water loss through evaporation is usually not a major concern, but leaking causes a large waste of water, and it should be fixed immediately.
Repairing water loss in a waterfall in a little bit complicated, but it is something you can do on your own. Read on to learn how to find leaks in your water feature and how to fix them.
1. Raise Any Low Liner Edges Along the Stream
According to my own experience, low liner edges is the leading cause of the leaking problem in a waterfall. The liner edges move down when the soil supporting them settles or is washed away. To locate leaks along the edges, you need to look for wet soil along these areas.
When it comes to fixing the low edges, you need to lift up the liner, fill the edges with soil, and compact it. If your stream edges have rocks or boulders, you need to place them in a way that doesn’t move the liner.
2. Rearrange Rocks to Fix Splash Leaks
Splash leaks are common in areas where the water is flowing at a high speed or where the edges are not high enough to contain the splashes. It is easy to locate these leaks as they occur above the ground surface.
To fix the splash leaks, you need to rearrange the rocks so that they can block the splashes and redirect the water to the right direction. You can also add more rocks along the stream to slow down the speed of the water.
3. Remove Excess Algae and Plants in the Waterfall
Excess algae can raise the level of the water and cause it to leak over the edges. On the other hand, excess plants can obstruct the flow of the water and divert it away from the stream.
So it is recommended to remove excess algae from your waterfall. You just need to pull it out using a suitable tool or use a good algaecide like API Algaefix to control it. This algaecide is safe for other plants and can control all types of algae. As for the plants, you can just trim them or uproot the ones that have grown big.
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4. Fix Any Leaks in the Biofilter
Leaking in the biofilter can occur if more algae and plants grow in the filtration system. It can also occur if the biofall seal is damaged or if the liner around the filter has deteriorated. To know if the leaking problem is in the biofilter, you need to use your hand to feel the dampness of the soil around this component.
If the leaking is caused by algae or plants, you should see water leaking over the back or side edges of the biofilter. To stop this leakage, you need to remove the algae and plants. Concerning the damaged seal or liner, you need to do replacement to stop the problem permanently.
5. Check for Leaks Around the Skimmer and Fix Them
The skimmer can leak if it tilts or if it has a loose faceplate. It can also leak if the seal between the faceplate and the liner has deteriorated. Like in the biofilter, you can detect leaking in the skimmer by using your hand to feel the wetness of the soil around it.
If the leaking is due to a tilted skimmer, you need to reinstall it properly. If it is due to a loose faceplate, you need to tighten its bolts. Moreover, if it is due to a deteriorated seal, you need to replace the sealing material.
6. Fix Any Leaks on the Pipe Network
Leaks in the plumping lines are common, and they can be the result of loose connections or broken pipes. If the pipe network is on the ground surface, you can easily locate the leaks. If it is underground, you need to dig up the soil to inspect the leakage.
For any cracked pipes or fittings, you need to cut the damaged parts and replace them. If there are loose connections, you need to tighten them to prevent the dripping of the water.
7. Check for Damages on the Pond Liner and Fix Them
The main causes of leaks in a waterfall pond are holes on the liner and low liner edges. To know if your pond is leaking, you need to block the flow of the water to the waterfall then monitor the water level. If the level decreases, then your pond is definitely leaking and you can start looking for the cause of the problem.
If it is due to holes or punctures, you need patch or seal them. You can also replace the whole liner if it is highly damaged. If the leaking problem is due to low liner edges, you need to lift up the liner and support it with soil and rocks.
There you have it. Whether the leaking is along the stream or in the pond, I am hopeful that you can fix it with the help of this article. As you have learned, you just need to locate the leak and work on to repair it.
This content is accurate and true to the best of the author’s knowledge and is not meant to substitute for formal and individualized advice from a qualified professional.
© 2021 Fredrick JS