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We want to swim in our pond, but as soon as we step in, it is muck and smells. Help! | Ponds & Lakes Q&A

Q: We want to swim in our pond, but as soon as we step in, it is muck and smells. Help!

Q: We want to swim in our pond, but as soon as we step in, it is muck and smells. Help!

Steve – McDermott, OH

A: Yuck. In some luxe-minded circles, mud baths are all the rage – but muck baths aren’t, particularly when they’re paired with putrid, off-putting odors. What causes all that slimy, stinky stuff, and how can you get it under control before swimsuit season?

Making Muck

Muck, and its associated smell, is an all-natural byproduct of the breakdown of organic debris, like leaves, dead algae and disintegrating plants, in your pond. Chances are, your pond has been unused for a long period of time, or you get a lot of stuff floating or falling into your pond. All that material eventually builds up, breaks down and begins to decompose, forming muck and gases.

When you tiptoe into your pond and all that slimy muck squishes between your toes, you’re feeling the accumulation of this decaying material – and smelling the now-released stinky gases that were trapped in the debris. Not a fun experience.

Dealing with Detritus

Unless you want to launch your own luxury muck bath spa (it could be next big thing, after all!), you should definitely plan to get rid of all that detritus and its resulting odor. Here’s a three-step solution that can help:

  1. Add Natural Bacteria: If the water temperatures in your pond are above 50°F, add some Pond Logic® MuckAway™. The formula’s beneficial bacteria will help break down the decaying muck on the pond bottom. When used as directed, MuckAway™ can eat through 2 inches of muck per month!
  2. Add Aeration: When the weather allows, install an aeration system and crank it on. The Airmax® Aeration System product line includes aerators suited for any size pond – from shallow water bodies to ponds up to 6 acres. They each include diffusers, a compressor, cabinet, airline and free mapping service that takes the guesswork out of diffuser placement.
  3. Add Pond Maintenance: Don’t forget to add some pond maintenance chores to you to-do list. Regularly rake out dead and dying organic material. Keep plants trimmed and pond weeds managed. Do what you can to prevent leaves and debris from blowing into the water.

By using beneficial bacteria, adding aeration and preventing decomposing debris, you’ll be well on your way to a sludge-free pond that’s perfect for swimming and summer fun.

Pond Talk: Have you de-mucked your pond? Tell us your success stories!

Eliminate Noxious Pond Odors - Pond Logic® MuckAway™

What is causing the bad odor coming from my pond? | Ponds & Lakes Q&A

Q: What is causing the bad odor coming from my pond?

Q: What is causing the bad odor coming from my pond?

Keith – Cedar Bluff, AL

A: There’s nothing worse than that musty, rotten egg, sulfur-type smell that’s pungent enough to ruin spring strolls by the pond. What causes it and what can you do about it?

Common Causes

Those odors are common in ponds that aren’t aerated, particularly during certain times of year. In the summer and winter, non-aerated ponds stratify into layers of water with distinct temperature differences. This locks the bottom layer away for months.

While the water layer is trapped down there, the oxygen is used up quickly. It goes from an aerobic environment to an anaerobic environment – which is perfect for slow-moving anaerobic bacteria that use enzymes to ferment and digest the decaying muck on the bottom. Those microorganisms ultimately produce waste products, including carbon dioxide and hydrogen sulfide, which is that lovely rotten egg smell.

In the spring and during strong weather events, the water column turns over; the anaerobic layers on the bottom rise to the top, bringing with it all those foul-smelling odors. That’s likely what you’re experiencing with your pond, which could be made worse by melting ice releasing all those gases at once.

Stink-Stopping Solutions

So what can you do? At this point, first test your pH and water quality, as pond turn-overs could cause pH shifts, dissolved oxygen crashes and algae blooms that could harm or kill your fish (which could add to the odor problem …).

If the water temperatures in your pond are 50 degrees Fahrenheit or above, add some Pond Logic® MuckAway™ and Pond Logic® PondClear™. The beneficial bacteria in the products will help break down the decaying muck on the pond bottom as well as clearing up suspended particles in the water column.

As soon as you can, install an aeration system and crank it on. Our Airmax® Aeration System product line includes aerators suited for any size pond – from shallow water bodies to ponds up to 6 acres. They each include diffusers, a compressor, cabinet, airline and free mapping service that takes the guesswork out of diffuser placement.

Finally, cut and rake out dead and decaying organic material with a weed remover tool. The more you can eradicate, the better it’ll be for your pond’s water quality – and stink factor.

Pond Talk: How do you prevent or manage the odor coming from your pond?

Eliminate Noxious Pond Odors - Pond Logic® MuckAway™

How Do I Get Rid of this Terrible Odor Around My Pond? – Pond & Lake Q & A

Picture of Gas Being Released from the Pond.

Pond & Lake Q & A

Q: I have an awful smell around my pond. What is causing it and is there anything I can do to get rid of it? – Hailey of Nebraska

A: I think we’ve all experienced this at one time or another. We’re outside, enjoying the spring breeze and decide to go wandering around the pond to maybe spot some frogs or to feed the fish. All of sudden you go to breathe in the fresh air and you quickly realize that it’s not so fresh after all. Your nostrils are engulfed with a distinct musky odor as you retreat away from the pond. Is it gas? Do you call the fire department? No. Call The Pond Guy®. That sulfurous smell that finds its way around ponds is a common byproduct of a pond that is not aerated.

Non-aerated ponds stratify (layers in the pond have distinguished temperature differences) in the summer and winter, locking the bottom layer of water away for months. With no circulation, the oxygen is quickly used up down there, resulting in an anaerobic (functioning without oxygen) digestion process that is loosely equivalent to that of a cow’s stomach. Slow-moving anaerobic bacteria on the bottom use enzymes to ferment and digest the muck on the bottom. These bacteria produce waste products including carbon dioxide and hydrogen sulfide (rotten egg smell).

Most of the year, an un-aerated pond will smell fine because this buildup of nasty gasses stays locked away on the bottom. It is when the pond turns over (Spring/Fall temperature shift, strong weather event, etc.) that the foul-smelling gasses are released. Surprisingly, the foul smell is the least of the pond’s problems at this point. The release of this gas also signals that the inhospitable water that was stuck underneath has now mixed into the upper part where your fish are living. Wacky pH shifts, dissolved oxygen crashes, and algae blooms are a few of the byproducts of turnover, all of which have fish-kill potential.

The solution? Aerate like it’s your job! An Airmax® Aeration System will keep the pond in a permanent state of motion, continuously venting gasses and providing oxygen to the bottom sediments. This allows the aerobic (good, oxygen loving) bacteria in the pond to inhabit the bottom sediments and work away at that ugly muck layer. Aerobic bacteria work similarly to plants in that that they use up the bad gasses and muck, and give off a little oxygen in return while working much more quickly than their anaerobic (cow’s stomach) counterparts. Supplement these bacteria with MuckAway™ Natural Bacteria or PondClear™” bacteria that will accelerate the decomposition process. Remember, keep that pond moving to keep that pond healthy and odor free.

POND TALK: Have you ever run into this odor problem? Tell us about it. What are you doing or have already done to get rid of it?