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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

I’m upgrading my pump. Do I need new tubing as well? | Decorative Ponds & Water Gardens Q & A

Q: I’m upgrading my pump. Do I need new tubing as well?

Q: I’m upgrading my pump. Do I need new tubing as well?

Roger – Cordova, TN

A: Congratulations on the purchase of your new toy! To get the maximum flow out of your pump, you’ll need to make sure your tubing size lines up with your flow rate.

Here’s what we recommend:

  • Up to 500 GPH: ½ inch tubing
  • 501 – 900 GPH: ¾ inch tubing
  • 901 – 1,500 GPH: 1 inch tubing
  • 1,501 – 2,700 GPH: 1¼ inch tubing
  • 2,701 – 3,600 GPH: 1½ inch tubing
  • 3,601 – 5,400 GPH: 2 inch tubing
  • 5,401 – 13,500 GPH: 3 inch tubing

When it comes to selecting a type of tubing, you can choose from three different types: flexible PVC tubing, flexible kink-free tubing and flexible black vinyl tubing. Each has its own unique features and uses. Here’s what you need to know:

Flexible PVC Tubing

Ideal for water features, flexible PVC tubing can have water in it year round without damage from freezing temperatures, and the pipes can be buried. To join the lengths of pipe and plumb your pump, you will need to use schedule 40 PVC fittings and PVC glue. Flexible PVC is the most expensive of the bunch, but it’s your best choice for high-flow pumps. It comes in 1½” to 4″ diameter.

Flexible Kink-Free Tubing

The most popular and widely used water feature tubing, flexible kink-free tubing makes plumbing jobs a breeze as it requires few pipe cuts and unions. The heavy-duty tubing can withstand freezing temperatures and being buried. Connect the tubing with barbed and insert fittings and hose clamps rather than messy glue. We have it in ½” to 1½” diameter.

Flexible Black Vinyl Tubing

Ideal for smaller pumps, fountains and statuary, flexible black vinyl tubing is connected with insert fittings and hose clamps. It’s not sturdy enough to withstand being buried or left out in freezing temperatures. We carry 3/8″ to 1″ diameter tubing.

Get the most out of your new pump with the right tubing in the right size. You’ll be glad you did!

Pond Talk: Have you re-plumbed your pump or pond recently? What plumbing tips can you share from your experience?

Make Your Plumbing Job Easy - Flexible Kink-Free Tubing

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