Half Off Ponds Aqua Pulse 4,000 GPH Submersible Pond Pump with 30' Cord - AP-4000

   
• Built to Last - Our pumps are engineered for 24-hour continuous use, with high-end sensors preventing motor burnout.
   
• Industry Leading Performance - Deep vein replaceable impeller achieves maximum flow at higher head heights. Great for either submersible or in-line use.
   
• Durable Quality - Less than a 1% return rate! Passes solids up to 0.25" with a specialize intake screen to prevent those dreaded clogs.
   
• Amazing Power - High flow, energy efficient hybrid drive technology combines the high flow characteristics of a direct drive pump with the energy saving efficiency of a mag drive pump which can be controlled with variable speed controller (variable speed controller is NOT included).
   
• A Pump You Can Trust - ​**Backed by a 2-Year manufacturer's warranty!** With 100% U.S. Based Support and Service! - Contains no oil; completely safe for fish, wildlife and aquatic plants. Consumables not under warranty. For use in freshwater applications only. Not for use in chlorinated or salt water applications

FAQs & Calculations to Help Select the Correct Kit

Rectangular Ponds

Length x Width x Average Depth x 7.48 = Gallons

Example: A rectangular pond 15’ long, 10’ wide and 1.5’ Deep Pond is...

15’ x 10’ x 1.5’ x 7.48 = 1683 Gallons

Oval Ponds

Length x Width x Average Depth x 0.8 x 7.48 = Gallons

Example: An oval pond 15’ long, 10’ wide and 1.5’ deep is...

15’ x 10’ x 1.5’ x 7.48 = 1683 Gallons

Round Ponds

Length x Width x Average Depth x 7.48 =Gallons

Example: 15’ long, 10’ wide and 1.5’ Deep Pond

15’ x 10’ x 1.5’ x 7.48 = 1683 Gallons

 

Streams

Length x Width x Average Depth x 0.25 x 7.48 = GALLONS =Gallons

Example: 15’ long, 10’ wide and 1.5’ Deep Pond

15’ x 10’ x 1.5’ x 7.48 = 1683 Gallons

 

2. How Big of a Pump Do I Need??

Minimum pump size is determined by pond type, water volume, head height and friction loss. The minimum pump size recommendations are:

Water Garden, Few Small Goldfish

Circulate total pond water valoume every 2 hours.

Example: 2,000 GPH pump for a 3000-gallon pond with 2’ waterfall.

Fish Pond, Several Small Fish

Circulate total pond water valoume every 1 hour.

Example: 3,800 GPH pump for a 3000-gallon pond with 2’ waterfall.

 

Koi Pond, Several Large Fish

Circulate total pond water valoume every 3/4 hours.

Example: 2,000 GPH pump for a 3000-gallon pond with 2’ waterfall.

Calculating Head Height

Dynamic head pressure is found by taking the vertical height of your waterfall; the distance between where your pump is (typically in the skimmer) and where your waterfall is, and adding the static head pressure (pipe and fittings) 1’ for every 10’ of tubing and 1’ for every elbow or “T” fitting.

Example: 3' (vertical height) + 2.5 (25' of tubing) + 2' (for 2 elbows) = 7.5' of Dynamic Head Pressure

Note:It is important to take into consideration while calculating how much flow will be at the top of your waterfall by accounting for the head height due to the laws of fluid dynamics. Please refer to the flow chart above to help choose the correct pump.

 

3. What Size Tubing Do I Need?

Tubing Size	Efficiency GPH	Minimum GPH	Maximum GPH
0.5”	< 300	60	420
0.75”	< 720	300	900
1”	< 1,200	700	1,500
1.25”	< 1,600	900	3,200
1.5”	< 2,600	2,000	4,400
2”	< 4,800	3,000	6,800
3”	< 9,000	6,000	14,000
4”	< 21,000	14,000	28,000
6”	< 42,000	33,000	60,000

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About Half Off Ponds

Customer service is our business. We have been satisfying fish pond, water garden, and backyard waterfall enthusiasts for over 25 years! We're glad to assist you with your pond building project - from start, to finish!

Thanks for your business! We appreciate it!

- The Half Off Ponds Team