Pump
"Customer service was great. Appreciated the quick turn around."
Aquatec 5800 Demand Pump, 0.7 GPM, 3/8-Inch QC, 120V 5851-7E12-J574
Q&As
Aquatec 5800 Demand Pump, 0.7 GPM, 3/8-Inch QC, 120V 5851-7E12-J574
Q&As
Part Number:
5851-7E12-J574
Alt Part Number:
5850-7E12-J574
Demand delivery pump provides up to 0.7 GPM with consistent pressure for RO and filtration system applications
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IN STOCK
NSF Certified
Description
Aquatec DDP 5800 Demand Pump Can Fix Low RO Water Pressure Fast
Struggling with slow water flow from your reverse osmosis system? The Aquatec DDP 5800 demand pump automatically increases pressure the moment you turn on the tap — delivering strong, consistent flow to your RO faucet, refrigerator water dispenser, or ice maker.
The Aquatec 5800 high-flow delivery/demand pump is generally used after the RO system holding tank to get purified water to your ice maker, sink, or another holding tank when they are located more than 3 feet away. This pump is designed to generate 60 PSI and produce 0.7 GPM.
What the Aquatec DDP 5800 solves:
- Low water pressure after the RO storage tank
- Slow or weak flow to fridge and ice maker
- Pressure drop on long tubing runs
Easy DIY installation — no tools required:
The DDP 5800 uses push-to-fit connections compatible with standard 3/8" tubing. A 1/4" adapter is included for flexible setup in any under-sink configuration.
Why choose Aquatec?
- Made in the USA
- 30,000+ hour design life
- Certified to NSF Standard 58 for drinking water system components
The Aquatec 5800 is a top-rated RO demand/delivery pump trusted by homeowners, plumbers, and water treatment professionals for residential reverse osmosis systems, whole-home filtration setups, and point-of-use applications.
*The 5851-7E12-J574 may be substituted with the 5850-7E12-J574 pump, the 5850 version is rated at 0.64 GPM.
Specs
- Push-to-Connect Ports for 3/8" Tubing
- Flow Rate: 0.7 GPM
- Produces: 70 PSI
- Shut-off pressure: 60 PSI
- Dimensions: 3.38" x 3.60" x 7.51"
Features
Overall rating: 4.3333335 / 5 from 6 reviews.
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Reviews
Pump
"Customer service was great. Appreciated the quick turn around."
Excellent pump
"This pump is great. It kicks on when it senses a preasure drop and kicks off around 60 psi. Very quiet and works great."
Do NOT order from this
"Do NOT order from this Company, if you have an issue and reach out to Customer service, they will not respond. I reached out Via Email and a Message from My Account. no Replies. The Pump I received had an issue with Rapid on-off cycling."
Great services
"Knowledgable, friendly, prompt"
Thanks
"Thanks"
This RO pump works great!
"Easy to install and is powerful. A+"
Q&A
Q:
What is an Aquatec 5800 demand pump used for?
A:
This pump boosts delivery pressure after an RO storage tank so water reaches a remote faucet, refrigerator, ice maker or other point of use with stronger flow. It is not the feed-water booster pump installed before an RO membrane.
Q:
What connections and power does model 5851-7E12-J574 use?
A:
It uses 3/8-inch quick-connect water ports and a 120-volt power supply. The package includes the transformer and pressure-switch control required for automatic demand operation.
Q:
How much flow and pressure can this pump provide?
A:
The pump is rated around 0.7 gallon per minute, with output up to roughly 70 psi and automatic shutoff near 60 psi. Actual performance depends on inlet pressure, tubing length and restriction downstream.
Q:
Where should the demand pump be installed?
A:
Install it on the product-water line after the pressurized RO tank and before the distant appliance or faucet. Mount it in a dry, accessible location with adequate ventilation and follow the flow arrow on the pump.
Q:
Why does a demand pump cycle on and off rapidly?
A:
Rapid cycling can indicate a small leak, trapped air, restricted tubing, incorrect tank precharge or a pressure-switch issue. Check the tank and plumbing before assuming the pump itself has failed.
Q:
Can the Aquatec 5800 run continuously?
A:
It is designed for intermittent demand service and should stop when downstream pressure reaches the switch setting. Continuous running with no open outlet suggests a leak, insufficient inlet water or failure to reach shutoff pressure.
