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The water level in my pond keeps dropping below my skimmer opening. What should I do? | Decorative Ponds & Water Gardens Q & A

Q: The water level in my pond keeps dropping below my skimmer opening. What should I do?

Q: The water level in my pond keeps dropping below my skimmer opening. What should I do?

Charles – Bellingham, MA

A:  That’s a problem, for sure! Let’s take a look at some reasons why your water level is dropping below your skimmer opening in the first place. One of them could point to your solution.

 

Reason #1: Wrong Pump Size
Skimmers are rated for maximum water flow. If your pump exceeds this rating, the water will leave the skimmer faster than it enters—and you’ll be left with a low water level. Check your pump to be sure it’s sized correctly for your skimmer.

Reason #2: Accumulated Debris
Is your skimmer’s filter mat plugged? Nets and media pads catch a majority of debris as the water passes through your skimmer (which you then clean out several times a year), but some of it may fall to the bottom. That debris could then plug your filter mat and prevent water from getting to your pump. It could also cause a water backup, allowing water to escape from other areas of your pond. When you pull out your filter pad, check for debris buildup in the skimmer bottom.

Reason #3: Skimmer Height
If your skimmer is set at the wrong height, that could cause problems, too. It should be set so that the natural water line of the pond when filled is about an inch below the top of the skimmer opening. If it’s set where the water level is lower, small fluctuations in the water level can make a big difference. Check your skimmer height and adjust as needed.

Reason #4: Too-Low Overflows
If you installed an overflow in your skimmer, make sure the overflow’s bottom is not lower than where the water level should be. Otherwise, you will have issues when you have small fluctuations in your pond’s water level. Check to be sure any built-in overflows are positioned at the right height to allow water to drain from the skimmer.

Reason #5: A Leak
Dropping water levels could indicate a leak, so check around your pond for pooling water. Here, we outline in detail how to find and repair a leak.

Reason #6: Evaporation
The sun’s evaporation power can play a role in your waning water levels, too. If this becomes a problem over time, you can install an auto-fill valve to refill your pond when it gets low. At the very least, install an automatic shutoff switch; if water depletes to a certain point, the pump will switch off automatically.

Good luck figuring out this mystery!

Pond Talk: Have you ever been stumped by the cause of falling water levels in your pond?

Protect Pumps From Low Water - ProPlumber™ Pump Shut-Off Switch

How do I know if it’s a leak or evaporation loss?| Decorative Ponds & Water Gardens Q & A

Q: How do I know if it’s a leak or evaporation loss?

Q: How do I know if it’s a leak or evaporation loss?

Dena – Albrightsville, PA

A: A little water loss in your water garden is normal – but when it disappears by the inches, you’ve got a mystery to solve. These step-by-step sleuthing tips, below, can help you deduce whether it’s summertime evaporation or a liner leak.

Step 1 – Look for Evaporation Clues

During the heat of the summertime, you can expect some all-natural water loss. Thanks to evaporation, up to an inch (give or take) of water will naturally disappear from the pond, and if you have a long stream bed with a lot of surface area or a large pond with few floating plants, even more water could transform from liquid to vapor. If you suspect evaporation, fill the pond back up and keep an eye on the water level.

Step 2 – Check for Dampness Around the Pond

If more than an inch of water is disappearing every day, you could be dealing with a leak. Walk around the pond and waterfall or stream, and carefully inspect the soil for signs of unexplained moisture. If you find some, take a closer look at that spot’s liner and construction. Leaking water has to go somewhere, and a patch of wet ground is clear indicator of a problem.

Step 3 – Finding Liner Rips

If you suspect a rip or hole in your liner, keep a close eye on the pond’s water level until it stops falling. When it does, that’s when you should look for the leak. Because the water level will stabilize once it lowers past the hole, you should be able to find the problem at or below the water level and fix it.

To repair the leak, you have two options: repair the hole with a patch found in the EPDM Pond Liner Patch Kit, or close it up with some underwater sealer, like Gold Label Pond and Aquarium Sealer. The patch kit comes with everything you need to fix minor tears in your pond liner, including an EPDM patch, solvent wipe, scrub sponge, seam roller and pair of disposable gloves. The underwater sealer, which works on wet or dry surfaces, instantly repairs leaks in rubber and vinyl liners.

Step 4 – Shore Up Your Stream

If you found moisture outside of your stream or waterfall, turn off your pump and inspect the rocks and liner around the wet spot. Is there a hole in the liner? Repair the leak with your liner patch kit. Is water pooling under rocks or splashing outside the stream? Redirect it back down to the pond with Black Waterfall Foam. Once you apply it, it’ll look like shadows between the rocks.

Step 5 – Inspect Your Fittings

Finally, if you’ve ruled out evaporation and there are no damp areas around the circumference of your pond to be found, the culprit could be your pressurized filter, tubing or connections. Inspect the plumbing on the pump or waterfall where pipe splits or loose fittings could be leaking, and repair it as necessary.

Good luck finding the cause of your pond’s water loss!

Pond Talk: How much water evaporates from your pond per day in the summertime?

Patch Leak Even Underwater - Gold Label Pond & Aquarium Sealer

I think there is a leak in my water garden, but how do I know? | Decorative Ponds & Water Gardens Q & A

Q: I think there is a leak in my water garden, but how do I know?

Q: I think there is a leak in my water garden, but how do I know?

Abby – Pueblo, CO

A: What a conundrum! Determining whether you have a leak in your liner—and then finding and fixing it—can be a daunting task. But with a little detective work and these step-by-step instructions, your pond will be holding water again in no time.

A Leak or the Heat?

Let’s determine if you have a leaky pond in the first place. How much water are you losing per day? And what’s the temperature outside? On hot days, it’s common to lose up to an inch of volume from your water garden—but if it’s more than that, you may have a leak.

Finding the Leak

Common places for leaks to spring include around the pond’s perimeter, the area around your waterfall and pump, and your liner. When looking for the leak’s source, follow these steps:

Step 1 – Search for a Wet Spot: First, look for wet areas around the perimeter of your pond. Is water pooling somewhere? Are the weeds thicker or the grass lusher in one area than another? Check the low-lying areas where the liner may not be properly supported. If nothing looks amiss, head over to your waterfall pump.

Step 2 – Leak Check: The easiest way to determine whether the leak is in your liner or in your waterfall box is to turn off the waterfall pump (but keep your aeration going so the water stays aerated) and leave it alone for a few hours. When you come back:

  1. Is the water level the same? If so, your liner is not the culprit so you’ll need to check for problems with your waterfall box.
  2. Has the water level dropped? If so, you have a leaky liner. Jump to step 4.

Step 3 – Waterfall Worries: If your waterfall or waterfall box is the source of your leak, follow these steps to determine where the water could be escaping:

  1. Connections: First check the connections from the pump to the box. Are they loose and dripping, or are they tight?
  2. Cracks in the Box: Next, take a look at the waterfall box itself. Are there any cracks? Is the liner properly attached?
  3. Stream Leaks: Finally, inspect the rocks and liner around the waterfall and stream, making adjustments are needed. Try using some Waterfall Foam to stop water from flowing behind the rocks.

Step 4 – Your Leaky Liner: Finding a hole in a liner isn’t easy. But with a little perseverance, you can locate it and repair it. Here’s how:

  1. Track the Leak: Use Pond Logic® Pond Shade to visually track the leak. Simply add a few drops on the side and watch it as it finds its way to the leak. This will take some time, a few attempts—and patience.
  2. Let It Be: If you have trouble finding it with Pond Shade, let the water slowly go down. (Depending how low it goes, you may need to temporarily relocate your fish.) The water level should stabilize, which will allow you to visually inspect the first few inches of liner above the water surface for the hole.
  3. Repair the Leak: Once you find the hole, patch it up with self adhesive Liner Patch or use some Gold Label Pond Sealer.

Good luck with your search!

Pond Talk: Have you ever had a leak in your pond? How did you find out where it was coming from?

Control Water Flow - Atlantic® Waterfall Foam

Finding a Leak in Your Water Garden – Water Garden & Feature Q & A

Finding a leak in your Water Garden

Water Gardens & Features Q & A

Q: I think my pond may have a leak. How do I find it? – Donny of Georgia

A: To find a leak in your pond or water feature, you’ll need to do some sleuthing. Your fish and waterfall/stream will splash some water out of the pond, and some of it will evaporate (especially during the long, warm days of summer), but if you have an average pond and you’re losing more than 3 inches per week, try these techniques to troubleshoot the cause of the leak:

1. Turn off the pump and wait: By shutting off your pump, you’ll be able to narrow down the location of the leak. If the water level in the pond continues to drop, you’ve got a leak or liner breech in the main basin of your pond. If the water level stays the same, you’ve got some more investigating to do.

2. Inspect your plumbing: A leak in the plumbing means you’ll need to carefully examine all the check valve assemblies and fittings, replacing them if necessary. Look at your skimmer and/or filtration system and make sure they’re clean and sound. You won’t be able to check buried pipe, of course, but look around the pond for abnormal wet patches.

3. Check your liner: Your pond’s leak could be caused by a liner breech, either in the waterfall/stream or along the pond’s edge. Has a rock, plant or excess algae growth shifted the liner, causing the water to flow over it? Has the liner settled along the streambed or pond edge after a heavy rain? Do you see wet spots in the mulch or gravel alongside the pond? These clues may lead you to the cause of the leak.

4. Let it flow: If the leak is in the pond basin itself, all you can do is leave the pump off and let the water run out until it stops, being mindful of your plants and fish, of course. Low water levels may force you to net your fish and relocate pond inhabitants. As the water drains, check the sides of the pond for holes or gashes. Look for low edges that allow water to escape and make sure the liner is still in place.

5. Fix it: When you find the leak, we suggest to scrub and remove any debris before patching to help ensure a clean seal. A hole in the pond liner can be easily fixed with and 6″ EPDM Liner Patch Kit or a Liner Patch Kit if you liner is something other than EPDM. Follow the included instructions or contact us and we can help you. If you don’t want to drain your pond to repair the leak you can always use the Underwater Pond Sealer. It works instantly to repair leaks in rubber liners, vinyl liners, concrete, stone, wood, glass and ceramic.

Pond leaks happen, so be sure to regularly inspect and maintain your decorative pond or water feature. Hopefully, you’ll be able to catch the leak before it turns into a flood!

POND TALK: Do you have any tips for finding an underwater leak?

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