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My filter has multiple size connections. How do I know which size I should use? | Decorative Ponds & Water Gardens Q & A

Q: My filter has multiple size connections. How do I know which size I should use?

Q: My filter has multiple size connections. How do I know which size I should use?

Linda – Toms River, NJ

A: Manufacturers may offer several size connections for a filter or pump. Just take a look at the AllClear™ PLUS Filter & SolidFlo™ Pump Combo or the PowerUV™ & SolidFlo™ Pump Combo tech specs, and you’ll see what we mean.

Deciphering those measurement ranges – a ½ inch fitting to a 1-1/2 inch fitting and everything in between – can be a challenge for DIYers. When figuring out what size to use, keep two things in mind: flow rate and pond aesthetics.

Go with the Flow Rate

Your filter’s flow rate refers to how much water passes through it in one hour’s time. The more water your pond holds, the higher the flow rate will need to be. Generally, you want the flow rate of your system to be fast enough to turn over your pond at least once every two hours.

The flow rate will also determine how your pond looks, meaning how much water channels through the filter and down your waterfall. Whether you have a small pond with a slow meandering stream or a goliath water feature with a gushing 4-foot waterfall, the look of it will be affected by the filter’s flow rate. You’ll also need to factor in your head pressure when determining the amount of flow needed.

Choosing Tubing

The diameter of your tubing will determine the maximum flow it can handle. The greater the diameter, the more water can be moved (as long as your pump can handle it). Think of it like this: If you’re drinking water through a straw, you’ll get a bigger gulp from a standard-size straw than a narrow cocktail straw.

If you’ve determined that you need a pump that will move 2,500 gallons of water per hour, for example, following the recommendations below you would need to use 1-1/4″ tubing.

  • Up to 500 gph: Use 1/2-inch tubing
  • Up to 900 gph: Use 3/4-inch tubing
  • Up to 1,500 gph: Use 1-inch tubing
  • Up to 2,700 gph: Use 1-1/4-inch tubing
  • Up to 3,600 gph: Use 1-1/2-inch tubing

Tubing too small would restrict the flow of water, while tubing too large would not create enough pressure to achieve the desired look. Choose wisely!

Pond Talk: Have you experimented with your tubing sizes? What results have you seen?

Perfect for New or Existing Ponds - The Pond Guy® AllClear™ PLUS & SolidFlo™ Combo Kits

How often are you really supposed to wash out your filter? | Decorative Ponds & Water Gardens Q & A

Q: How often are you really supposed to wash out your filter?

Q: How often are you really supposed to wash out your filter?

Al – Greenville, RI

A: The filtration system in your pond is made up of two parts: the mechanical filter and the biological filter. They both clean and clarify the water, but they do so in very different ways and require very different cleaning regimens to keep them optimally operating.

The Mechanical Filter

The skimmer or pump sock make up your mechanical filter. Able to function at all temperatures (as long as the water is liquid), their main purpose is to catch larger debris, like chunks of algae, leaves, foliage and other things that blow into your pond and settle on the water surface. These items are collected in a mat or debris net/basket as the water passes through the mechanical filter, which then protects the pump from clogging.

Cleaning the mechanical filter is easy. You simply remove the mat or debris net/basket, dump out the debris and rinse it with a garden hose. This can be done as often as you like or as needed when you see the water flow slow down. In fact, checking it often is a good idea, particularly in spring and fall when debris tends to collect in a pond.

The Biological Filter

Your waterfall box, pressurized filter and in-pond filter filled with beneficial bacteria-covered filter media make up your biological filter. Their main purpose is to break down tiny, suspended debris, resulting in crystal clear water.

Here’s how it works: Unlike a mechanical filter that physically removes debris, a biological filter works at a microscopic level. Aerobic beneficial bacteria colonize and flourish on the surface area of filter media – like BioBalls™, mats and the like. As the water passes through the filter media, the bacteria feed on the debris and remove it from the water. Because the beneficial bacteria are living microorganisms, they function best when water temperatures are near or above 50 degrees Fahrenheit when they’re alive and kicking.

You don’t really “clean” a biological filter at all because you want to retain as much of the beneficial bacteria as possible. In the early spring, perform a cleanout and seed with natural bacteria like Microbe-Lift® PL Gel or Pond Logic® Seasonal Defense® to give your filter a fresh start. Throughout the season, do a mild rinse in a bucket of pond water only when the water flow begins to decline. Each time to clean or rinse your filter media, add a dose of Microbe-lift® PL Gel or bacteria from the Pond Logic® DefensePAC® to re-seed the bacteria and replenish any bacteria loss.

Though it may be tempting, don’t power wash or swap out filter media mats. This strips the beneficial bacteria, which may take weeks to replenish! In the meantime, algae will feed on the unfiltered nutrients in the pond water, and you’ll see your water quality diminish as fish waste accumulates – which is something you don’t want!

Pond Talk: What’s your mechanical and biological filter cleaning routine?

Promote Healthy Filters - Pond Logic® DefensePAC®

I’m tired of fighting algae. Will a UV take care of all the algae growth? | Decorative Ponds & Water Gardens Q & A

Q: I’m tired of fighting algae. Will a UV take care of all the algae growth?

Q: I’m tired of fighting algae. Will a UV take care of all the algae growth?

Cherice – Everett, GA

A: Who isn’t tired of battling algae!

Caused by excess fish waste and dead organics from leaves or previous algae blooms combined with excessive spring- and summertime sunlight, all that garish green growth looks horrible, ruins your water quality, and creates a headache for you and your fish.

Is an ultraviolet clarifier, like The Pond Guy® PowerUV™ Clarifiers or the AllClear™ PLUS Pressurized Filter the answer? It depends on the type of algae you’re trying to destroy.

Know Your Algae

The algae that forms in your pond comes in two basic flavors: planktonic and filamentous.

  • Planktonic algae, the source of pea soup algae blooms, are floating, microscopic plants that color pond water shades of green, blue-green, brown or variations in between. In controlled amounts, this type of algae can actually be beneficial. It’s considered the start of the pond food chain as the tiny plants feed fish inhabitants, and it can also shade the pond’s bottom, preventing subsurface nuisance plants from growing. In uncontrolled amounts, however, planktonic algae can cause oxygen depletions and fish kill.
  • Filamentous (string) algae are single-celled plants that form long, visible chain, threads or filaments. These threads, which start growing along the bottom of the pond in shallow water or on rocks or other aquatic plants, intertwine and form mats that resemble wet wool. When these mats rise to the surface, they’re commonly referred to as pond scum. These mats make great homes for micro- and macro-invertebrates, like bugs and worms, but they’re also unsightly.

UV clarifiers work by destroying the ultrafine planktonic algae – but, unfortunately, they do nothing to combat the filamentous algae. You’ll need a different strategy for the stringy stuff.

Battling Planktonic Algae

So how does ultraviolet light fight planktonic algae? When the algae cells are exposed to the bulb’s ultraviolet rays, radiation destroys the plants’ cellular walls. As a result, the tiny particles of dead algae clump together, and those clumps are then removed by your mechanical filtration system.

For the UV clarifier to work properly, however, follow these guidelines:

  • Replace bulbs yearly. Worn-out bulbs – even if they still light up – may not be as effective at controlling green water.
  • Watch your flow rate. Pushing water past the UV too fast can damage the unit and not allow enough contact time with the UV bulb for it to be effective.
  • Don’t flow too slow. Running a UV at too slow of a flow will act as a sterilizer and may also have a negative affect on natural bacteria meant to help decompose dead organics and fish waste.

Finding Balance

If you have an algae problem, be it planktonic or filamentous, it indicates your pond is out of balance. An ultraviolet clarifier should actually be one of your last tactics! Add some beneficial bacteria from the Pond Logic® DefensePAC® Pond Care Package to help reduce the amount of organics in your pond. Start aerating the water. Consider using pond dye. If you have a thriving fish population, think about finding a new home for them (but don’t release them into the wild!). Manage the nutrients, sunlight and oxygen levels, and your algae proliferation should naturally level out on its own.

Pond Talk: How dependent are you on your ultraviolet clarifier?

Eliminate Green Water - The Pond Guy® PowerUV™

I want to put in a pond. How do I know what type of filter system I need? | Decorative Ponds & Water Gardens Q & A

Q: I want to put in a pond. How do I know what type of filter system I need?

Q: I want to put in a pond. How do I know what type of filter system I need?

Barb – Denton, NE

A: Choosing the right filter for your water feature can be a daunting task – particularly if you are new to the pond-keeping hobby. With all the designs and functions available out there, where do you start?

Your first step is to consider your pond’s location and its use. As you’re in the pre-planning stages, where do you plan on putting it, and what will you use it for? Will your pond be situated in full sun, or will it be shaded by a tree that drops leaves every fall? Will you have a small pond with a few small goldfish or a larger pond teeming with koi?

Once you’ve come up with a place and a plan, then you can start narrowing down the type of filtration system (or systems) that will work best for your pond.

External Pressurized Filter
Perfect for: Ponds in full sun
External pressurized filters are designed for small- to medium-sized ponds that are in full sun. Because all that sunshine encourages algae blooms and green water, these filters include biological, mechanical and ultraviolet filtration – a three-pronged attack that will keep your water crystal clear. Some also include a backflush option, which makes it easy to clean without having to remove your filter media. It’s one of the easiest filters to add to an existing pond because the plumbing doesn’t need to be run through the liner.

Waterfall Filters
Perfect for: Large ponds with many fish 
Designed for small, medium or large ponds, waterfall filters provide a big waterfall display while biologically filtering the water. The pond water flows up through the filter media, where the beneficial bacteria clean the water, then spills out to create an elegant water display. They’re great for new ponds and easy to install in existing ponds and water gardens. They don’t offer the UV filtration, but they typically filter more water, handle larger pumps and won’t plug up as easily.

Pond Skimmers
Perfect for: Ponds that get a lot of leaves
Providing mechanical filtration, pond skimmers do an excellent job filtering ponds that receive a lot of leaves and floating debris. They contain a filter mat and debris net to catch leaves before they settle on the bottom of your pond, and they house your pump, giving you easy access to it for upkeep and maintenance. Because pond skimmers only provide mechanical filtration, be sure to pair it up with a waterfall filter.

Submersible In-Pond Filters
Perfect for: Small ponds with a few small fish
These all-in-one submersible in-pond filters are one of the easiest systems to add to an existing pond, as all the plumbing is conveniently contained right in the unit. Ideal for small ponds (up to 1,200 gallons) with just a few fish, these filtration systems can be combined with a fountain or used with a small waterfall. They provide mechanical and biological filtration and include a powerful UV clarifier to eliminate discolored water.

Whichever filtration system you choose, make sure it’s sized right for your pond – you don’t want to under-filter your new water feature! If you have questions about filter types and sizes, just talk to one of our experts. We’re happy to help!

Pond Talk: What advice about filtration systems would you give to this new pond owner?

Make Pond Water Crystal Clear - The Pond Guy® ClearSolution™

We are thinking about putting in a pond and most seem to be the same shape. Does the shape of the pond matter? | Decorative Ponds & Water Gardens Q & A

Q: We are thinking about putting in a pond and most seem to be the same shape. Does the shape of the pond matter?

Q: We are thinking about putting in a pond and most seem to be the same shape. Does the shape of the pond matter?

Beth – Hinesville, GA

A: Round, oblong, square, kidney-shaped, oval or otherwise, ponds come in all shapes and sizes. In most cases, they’re designed to fit into and enhance their environment. But does shape matter? Read on to learn more.

Tried-and-True Standards

Many ponds are curved and centered toward the viewing area – and there’s a good reason for that. An oval- or kidney-shaped pond allows you to see more of your water garden from one place. Imagine sitting on your deck or patio and enjoying a 180-degree view of your natural-looking waterscape. When compared to a perfectly round or square pond in the middle of your yard, you can see why one might have more aesthetic appeal than another.

Oval- or kidney-shaped ponds also allow for optimum circulation, particularly when a RapidFlo™ Ecosystem Pond Kit or AllClear™ Ecosystem Pond Kit is installed. A waterfall located at one end of a slightly curved pond will gently push the water toward your skimmer or pump for circulation and filtration. Round ponds or those with many coves or inlets may have areas of little circulation, which will require extra waterfalls, fountains or pumps to move the water and prevent it from stagnating.

Outside the Oval

Of course, if you want to play with pond shapes and design a waterscape that’s outside the ordinary, have at it! A rectangular pond teeming with colorful koi could be a stunning centerpiece in a modern-themed yard. A haphazardly shaped pond outlined with irises and arrowhead could transform a suburban postage-stamp yard into a natural wonderland. Just be sure you provide adequate aeration to all its corners and coves.

Regardless of its shape or size, a koi pond or water garden will make a valuable addition to your yard. Check out magazines for inspiration. Pin favorites on Pinterest. Sketch out your ideas. When you’re ready, talk to one of our pond design experts – and get ready to start digging!

Pond Talk: What shape is your pond? Is it tried-and-true, or is it outside the ordinary?

Pond Building Made Easy - The Pond Guy® RapidFlo™ Ecosystem Pond Kits

I want to upgrade my filtration system. What are my options? | Decorative Ponds & Water Gardens Q & A

Q: I want to upgrade my filtration system. What are my options?

Q: I want to upgrade my filtration system. What are my options?

Brock – Baton Rouge, LA

A: In just about every pond keeper’s life, the time comes when they want (or need) to upgrade their filtration system. Whether they’re looking for a filter that will handle a higher fish load, a three-in-one system that has UV light built right in, or one that’ll efficiently skim out leaves falling from that overgrown maple tree, a new filtration system can improve water quality – and give hobbyists a fun new water garden gadget to play with.

Ready to check out some options? Below, we’ve outlined several upgrade choices for your pond filtration system.

  • In-Pond Filtration Systems: The ClearSolution™ 4-in-1 Pond Filtration System is an ideal upgrade for ponds 1,200 gallons or less, particularly if the existing filter is a waterfall filter box. This unit uses mechanical and biological filtration media to remove large debris and dissolved organics, while a powerful ultraviolet clarifier clears discolored water. The system also features a compact energy-efficient mag-drive pump, which circulates water through the filtration system and discharges it through a fountain head attachment or a diverter valve. You can upgrade your filter and add a fountain!
  • External Pressurized Filters: For those with larger ponds up to 4,800 gallons, the AllClear™ PLUS & SolidFlo™ Combo Kits offer mechanical, biological and ultraviolet filtration in an efficient, economical filtration unit – but it also includes a back-flush system that allows you to clean the filter with the turn of a dial and rinse away waste water and debris via a discharge outlet. The AllClear™ PLUS system with SolidFlo™ Solid Handling Pump is great upgrade for existing ponds with high fish populations.
  • Waterfall Filter Boxes: Add a water feature to your pond while stepping up your filtration with a waterfall filter box, like the ClearSpring™ Waterfall Filter. The unit houses Bio-Balls and two filter pads of varying density for maximum filtration. For the waterfall pattern, you can choose between two included weir options – a traditional smooth sheet-like surface and a ribbed pattern. You can even plumb multiple boxes together via FPT inlets located on both sides of the waterfall box.
  • Skimmer Boxes: A skimmer is a practical upgrade in ponds with a lot of leaves. If your pond requires a high-volume pump that you want to hide, or if you want to add some extra mechanical filtration, check out the TetraPond® In-Pond Skimmer. This unit includes a large removable debris basket and an automatically adjustable weir door for maximum surface cleaning. And it’s easy to install: Place the skimmer on the bottom of your pond, weigh it down with gravel, connect it to your pump and let the skimming begin!

A new filtration system is a great investment in your hobby. Whichever you choose, have fun and enjoy the upgrade!

Pond Talk: What kinds of upgrades have you done to your filtration system?

Create a Beautiful Waterfall - The Pond Guy (r) ClearSpring(t) Waterfall Filter

Should I turn off my UV light when adding water treatments, like Nature’s Defense®, to my pond? | Decorative Ponds & Water Gardens Q & A

Q: Should I turn off my UV light when adding water treatments, like Nature’s Defense®, to my pond?

Q: Should I turn off my UV light when adding water treatments, like Nature’s Defense®, to my pond?

Olivia – Blissfield, MI

A: Great question! The answer all depends on the kind of ultraviolet light you’re talking about – so let’s quickly go through the differences between a UV sterilizer and a UV clarifier.

UV Sterilizer: Cleans It All- Good and Bad

A UV sterilizer completely sterilizes the water – which means it kills anything and everything that floats past its path, including beneficial bacteria found in some water treatments. These units are effective at killing floating algae and harmful pathogens like parasites, but they kill the good stuff, too. We don’t recommend adding bacteria to your pond while using a UV sterilizer.

UV Clarifier: Targets the Green Stuff

A UV clarifier is different. It targets just algae and leaves the bacteria alone (as long as the unit is sized right for the pond). The clarifier uses ultraviolet light to destroy the reproductive ability of suspended green stuff. Dead algae then clumps together into particles large enough to be removed by mechanical filtration, leaving the pond cleaner and clearer. If pea soup water is a recurring problem for you, add a UV clarifier to your pond.

Optimize the Flow

If you use a UV clarifier, you can leave the light on while you use bacteria-based treatments, like those found in the DefensePAC® Pond Care Package. But just be sure the bulb and pump are sized correctly.

Bright Enough Bulb: For a UV clarifier to be most effective, the bulb needs to have a high enough wattage for your pond’s volume. All UV clarifiers are rated based on pond size. The larger the wattage, the larger the pond size the UV clarifier can handle.

Power to the Pump: The water needs to flow pass the UV bulb at the just right speed, so the pump size is important. If the water moves too quickly, it won’t kill the algae and it could cause the seals on the unit to malfunction; if it moves too slowly, it will kill the algae and beneficial bacteria. A great rule of thumb is to push the water approximately half of what the UV is rated per hour.

A convenient option is to try out an all-in-one unit, like the AllClear™ & SolidFlo™ Combo Kits. The mechanical and biological filter system comes with a built-in UV clarifier. When used with the SolidFlo pump, you’ll be well on your way to clear water.

One last tip: Keep the water well-circulated by running an aeration system, like one of the Airmax® Aeration Kits. Its diaphragm compressors and air stones keep the beneficial bacteria supplied with oxygen, as well as ensure every drop of water and every algae cell float past that UV bulb.

Pond Talk: When have you used an UV clarifier in your pond?

All-Natural Pond Care System - Pond Logic (r) DefensePAC 9r)


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