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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

Is an overflow for my pond hard to install? | Decorative Ponds & Water Gardens Q&A

Is an overflow for my pond hard to install?

Is an overflow for my pond hard to install?
Brynn – Baton Rouge, LA

You can blame it on El Nino or point the finger at global warming. Perhaps you have another explanation, or maybe there’s none at all. But just between you and me – doesn’t it seem like rain storms have become more intense in recent years?

A sudden volume of rain can cause ponds, without an overflow, to flood. While this won’t do any damage to your pond, installation of an overflow will save you some time and effort either pumping out the excess water or dealing with a sullied shoreline when the water eventually recedes.

An overflow is simply a means by which excess water is drained from your pond. The easiest way to install one is to drill a hole into the side of your skimmer. Make sure the hole is near the top so you don’t drain your pond too low. Attach a leak proof Bulk Head to the hole (they come in sizes from ¾” to 4” in diameter), which provides a female thread on both sides of the seal. Twist in the proper-sized Male Adapter that will allow you to seamlessly connect whatever length of heavy duty Kink Free Tubing you need to run from your pond to a drainage ditch (for aesthetic reasons, we suggest you bury the tubing). The interior of our Kink Free Tubing is smooth to minimize friction and the material is flexible and will not crack if water is left inside during the cold winter months. We also guarantee that the tubing will be kink-free.

So, consider doing a little preventive overflow work on a sunny day, to save yourself the aggravation and worry when the rains come – and the water rises.

Pond Talk: Do you have an overflow set up in your pond?

Kink Free Tubing


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