Sequence Pumps
The Sequence pumps are some of our favorite pumps to use on medium to large ponds when the situation calls for an external pump. Sequence is known for making powerful pumps that can reliably pump water 24 hours a day, 7 days a week without resting. In addition, they are remarkably energy efficient compared to similarly sized submersible pumps, or even other external pumps.
Powerful
We pull out sequence pumps in situations where we have a medium to high flow rate, or in situations with high head pressure. Because they’re direct drive external pumps, they hold their power well as the head pressure increases. The smallest sequence pump we carry is the 750 series 3600, which will pump 2400 gph at 6’ of head. The largest pump we carry is the Sequence Power Series 18,000 which can put out a whopping 16,500 gph at 10’ of head.
Reliable
Most external pumps are more reliable than a comparably sized submersible. Because submersible pumps are literally submersed in water all the time, they receive a little more wear and tear from the corrosive forces of water. As well, Sequence pumps come with an impressive 3 year warranty direct from the manufacturer, and will last much longer than that if taken care of. In addition, if you do have a problem with a Sequence pump down the road, they are easy to maintain and fix with parts available from Sequence. Some other brands do not design their pumps to be easily serviced, opting to sell a new pump rather than fix an existing one.
Energy Efficient
Energy efficiency is where Sequence pumps really stand out from the crowd. It’s important to realize just how big of a deal energy efficiency is. If a pump costs a little more to purchase up front, but uses half the electricity of comparable pump, the energy savings can add up very quickly. For example, the Shinmaywa 5700 submersible pump is a rock solid submersible pump. But because it’s submersible, it will use quite a bit of power at 567 Watts. The Sequence 4K 5800 will put out the same amount of water at 10’ of head, but will only use 296 Watts. That’s a savings of 271 Watts, or about $23/month in an average electrical market. So as you can see, even if the Sequence cost more to buy up front, there will be savings down the road in running costs.
1) Small to Medium External Pumps
Sequence 750 Series (External) - The Sequence 750 series pumps are small external pumps meant for low to medium flow rates. They are extremely reliable and energy efficient pumps with a 3 year warranty. Meant for ponds with a total head pressure of 12' or less, they are meant for powering ponds and waterfalls needing a flow rate between 1200 to 3000 gph.
| Model | 4' head | 6' head | 8' head | 10' head | Volts | Watts | Price | |
|---|---|---|---|---|---|---|---|---|
| 3600 | 2820 gph | 2400 gph | 1860 gph | 1200 gph | 115 | 139 | $472.99 | More Info |
| 4200 | 3240 gph | 2700 gph | 2160 gph | 1500 gph | 115 | 160 | $494.99 | More Info |
2) Medium to Large External Pumps 2500+ gph
Sequence Energy Efficient 4K Series External Pumps - The Sequence 4K series pumps are medium sized external pumps meant for flow rates over 2500 gph. They are extremely reliable and energy efficient pumps with a 3 year warranty. Meant for ponds with a total head pressure of 22' or less, they are meant for powering ponds and waterfalls in medium head pressure situations.
| Model | 5' head | 10' head | 15' head | 20' head | Volts | Watts | Price | |
|---|---|---|---|---|---|---|---|---|
| 3600 | 3100 gph | 2400 gph | 1600 gph | 300 gph | 115 | 227 | $669.99 | More Info |
| 5000 | 4350 gph | 3500 gph | 2500 gph | 500 gph | 115 | 263 | $699.99 | More Info |
| 5800 | 5400 gph | 4200 gph | 3000 gph | 1000 gph | 115 | 296 | $723.99 | More Info |
| 6800 | 6400 gph | 5250 gph | 4100 gph | 2500 gph | 115 | 367 | $826.99 | More Info |
| 8200 | 7250 gph | 6250 gph | 5000 gph | 3200 gph | 115 | 450 | $843.99 | More Info |
3) Large / Very Large 7000+ gph - External Pumps
Sequence Power Series External Pumps - When we encounter a pond or waterfall application that needs very large amounts of water flow in high head pressure situations, our goto pump is the Power Series by Sequence.
| Model | 10' head | 20' head | 30' head | 40' head | Volts | Watts | Price | |
|---|---|---|---|---|---|---|---|---|
| 8500 | 7800 gph | 7080 gph | 6000 gph | 4800 gph | 230 | 1385 | $983.99 | More Info |
| 9200 | 8580 gph | 7800 gph | 7020 gph | 6000 gph | 230 | 1744 | $1021.99 | More Info |
| 11,000 | 10,380 gph | 9540 gph | 8640 gph | 7500 gph | 230 | 2056 | $1122.99 | More Info |
| 18,000 | 16,500 gph | 14,280 gph | 11,520 gph | 7500 gph | 230 | 2315 | $2916.99 | More Info |
4) Priming Pots / Strainer Baskets for External Pumps
Sequence Priming Pot / Strainer Basket - priming pots greatly simplify the process of priming an external pump. As well, each unit contains a strainer basket to filter out leaves and other debris from entering the pump. A priming pot is only needed when the pump is placed in a location that is higher in elevation than the pond surface. The priming pot allows the pump and lines to be filled manually with water before beginning operation.
| Model | Inlet | Outlet | Price | |
|---|---|---|---|---|
| 1 1/2" - 90 cubic inches | 1 1/2" | 1 1/2" | $128.99 | More Info |
| 2" - 90 cubic inches | 2" | 2" | $128.99 | More Info |
| 2" - 500 cubic inches | 2" | 2" | $546.75 | More Info |
Priming Pots
The one drawback of using any external pump is that the pump must be primed before use. Priming a pump simply means making sure the pump and pipe are full of water first before turning on the pump. A pump can only pump water, not air. Luckily, Sequence makes an excellent priming pot that greatly simplifies the process of priming a pump. The priming pot is connected to the pump, sitting between the intake line and the pump. The lid of the priming pot can be removed so that the pump can be manually filled with water. Of course, a check valve is necessary at the water intake to prevent the water from running backwards in the line as you fill up the priming pot.
Overall, Sequence pumps are a great option when building a new pond or waterfall that need a powerful, energy efficient pump that will give you years of reliable use. To learn more about pumps in general, please see our page on choosing a pond pump.
Click Here to Return from Sequence Pumps to Choosing a Pond Pump