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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

 

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I’m loosing water even after turning off my waterfall, but I don’t see any evidence of a leak. Help! | Decorative Ponds & Water Gardens Q & A

Q: I’m losing water even after turning off my waterfall, but I don’t see any evidence of a leak. Help!

Q: I’m loosing water even after turning off my waterfall, but I don’t see any evidence of a leak. Help!

Paul – Cherry Hill, NJ

A:  Missing water, eh? Well, there are several logical explanations for your “Case of the Disappearing Water” pond mystery. This time of year, a water feature will lose water for all sorts of reasons, including:

  • Humidity Levels: When the humidity levels are low and the air contains little moisture, the dry atmosphere will act like a sponge, increasing evaporation rates and absorbing the water from your pond.
  • Windy Weather: Breezes are common during autumn, and those winds can also escalate evaporation in your pond. A 5-mile-per-hour wind at your pond’s surface, for example, results in roughly three times the evaporation rate on a still day!
  • Leaky Liner: Leaks can be tricky. Your pond and waterfall may appear to be leak-free, but a slow, inconspicuous one could have formed in your plumbing, or one could have happened after some rocks shifted. Take a look at this article for tips on finding and fixing a leak.
  • Freezing and Thawing: Though freezing temperatures are rare this time of year, ice formation and expansion can happen—and it can cause your pond’s volume to look like it’s changing. As the water freezes, it’ll take up more space than liquid water and appear to be disappearing when it’s really not.

So what can you do about the disappearing water?

First of all, if you haven’t already, shut down fountains, spitters, waterfalls and other extra water features. This will reduce splashing that can lead to water loss. Remember: The more surface area, the more loss from evaporation, so reduce surface area by keeping the surface water still.

Next, keep the pond filled by topping your water levels off with a garden hose—particularly on dry, windy days when evaporation is at its peak. Winter weather will eventually bring icy temperatures and frozen hoses, so keep a thermostatically controlled Thermo-Hose™ handy to ensure the water inside the hose stays liquid. The built-in heating elements turn on when the temperatures dip below freezing, preventing ice from forming. If you are refilling with tap water don’t forget to add Water Conditioner.

Finally, for your pond’s and your fishes’ health, install an aeration system to keep the water circulated below the pond’s surface. An easy-to-install system like the PondAir™ & Thermo-Pond De-Icer Combo will gently aerate and pump oxygen into the water while keeping a hole open in the ice to allow for gas exchange.

Water loss is common, but with these tricks you can minimize the evaporation while maintaining your pond over the fall and winter.

Pond Talk: How much evaporation do you measure in your pond during the fall months?

Top Off Ponds & Water Features - K&H™ Thermo-Hose™

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