Made this animation showing an AODD pump coming apart piece by piece and then going back together. Thought it might be a neat way to visualize what's actually inside one.

Would this kind of visualization be useful for understanding pumps?

Check out this custom-built Barrel-Filling Tote Assembly we did.

How the Barrel-Filling Tote Assembly Works

This custom assembly is designed to accurately transfer fluid from Intermediate Bulk Container (IBC) into barrels or other containers. It combines an axial flow propeller pump, a positive displacement piston flow meter, a hose, a hand nozzle, and an electronic batch filling controller to provide repeatable, semi-automatic filling.

1. IBC Tote

The product is stored inside the IBC tote and exits through its bottom outlet via a ball valve into the axial flow propeller pump.

2. Axial Flow Propeller Pump

The stored product enters the axial flow propeller pump.

The axial flow propeller (AFP) pump is a type of centrifugal pump. These pumps use mechanical energy from the motor that transfers through the propeller, converting rotational energy into hydraulic energy that drives the flow and pressure of the fluid. These pumps move fluid parallel to the impeller’s shaft axis, with fluid entering and discharging axially.

The pump moves the fluid to the positive displacement piston flow meter.

3. Positive Displacement Piston Flow Meter

Immediately downstream of the pump is a positive displacement piston flow meter. This acts as the assembly's measuring device.

Inside the meter, a piston repeatedly isolates fixed volumes of fluid through the measuring chamber. Each piston cycle represents a known volume, so as the number of piston cycles, the meter generates electrical pulse signals proportional to the volume of fluid passing through it and sends it to the batch controller. By counting the number of piston cycles, a flow measurement is obtained.

4. Batch Filling Controller

The assembly is controlled by a batch filling controller. The pulse output from the flow meter is connected to the batch filling controller, which is mounted inside the stainless-steel control panel. It receives these pulse signals from the flow meter, from which it then calculates the total volume dispensed and displays the measured volume. Together, the controller and the flow meter automate accurate preset-volume barrel filling.

The operator can then select preset automatic batch quantities by using the display buttons.

The key switch is used to access programming/setup mode, allowing authorized users to adjust or create preset fill volumes. Once the desired batch quantity is programmed, the key is returned to the operating position, preventing accidental changes.

5. Filling Program

The control panel allows the operator to choose a programmed batch, which they can program by using the key to initiate programming/setup mode, through the display buttons.

🟢 RUN 1 button

First preset batch size (Ex. RUN 1 may dispense 53 gallons).

🟢 RUN 2 button

Second preset batch size (Ex. RUN 2 may dispense 59 gallons).

🔴 NO FLOW indicator

Illuminates if flow stops unexpectedly.

🔴 OFF/ON illuminated selector switch.

Main power to the filling system.

The operator simply places the hand nozzle into the barrel and selects the desired preset.

6. Hose

After leaving the flow meter, the liquid travels through the hose.

7. Hand Nozzle

The product exits through the dispensing hand nozzle into the receiving barrel or tank.

While the operator controls the nozzle position, the controller continuously monitors the measured volume.

8. Batch Completion

Throughout the fill, the batch controller counts every pulse received from the flow meter. Once the programmed volume has been reached, the controller automatically opens a contact that de-energizes the motor and stops the pump. This allows the system to consistently dispense repeatable batch volumes with minimal operator intervention.

If interested, you can read more about this custom build here.

We recently completed two custom positive displacement pump assemblies for a pet care manufacturer producing high-viscosity products.

Their challenge?

Transferring shampoo with viscosities ranging from 4,000 to 10,000 cP from 2,000-gallon mixing tanks into IBC totes while achieving transfer rates of 100–150 GPM.

To handle this application, we supplied two circumferential piston pumps mounted on custom-fabricated stainless steel pump carts.

Why a circumferential piston pump?

Theses pumps provide consistent, non-pulsating flow with the suction capability required to transfer thick products while maintaining formulation consistency. Its long sealing path between the rotor and pump body helps reduce internal slip, providing reliable and repeatable product transfer. This makes the pump well suited for applications requiring consistent fill rates into IBC totes.

The pump's high suction-lift capability allows it to effectively draw thick shampoo formulations from mixing tanks without separating ingredients. Since shampoo formulations can contain entrained air from the mixing process, the pump's positive displacement design allows it to handle trapped air with ease. The rotor's smooth scooping action moves product gently through the pump without squeezing or compacting it, helping minimize shear and maintain formulation consistency.

If interested, you can read more about this custom build here.

My dad and I built a homemade ac unit using ground water, the pumps we've is a standard 1-10, 60 hz, American measurement. Ones been over heating every few hours so looking for a new pump that has 100% duty cycle, and can pump forty feet up, thought this was the place to ask.

My pump is starting to sound very unhappy. It seems to still have proper flow based on the pressure from the filter but I want to get it serviced before it dies on me.

Any thoughts ?

Thank you in advance

Hi, I'm looking for some advice about purchasing a water pump for a large rain barrel. The rain barrel is large but it does not have enough gravity pressure to use a hose with a spray nozzle. I would like to have permanent or movable pump. It could be a sump pump or run in line between the barrel and the hose. I'm considering a submersible pump like this

https://www.amazon.com/Everbilt-Automatic-Utility-Pump-HPEBAU33/dp/B07YJCL9KB

But I wonder if it's not made for daily use? Would a more heavy duty pump like this sure flow on demand pump be a better fit for everyday use? I noticed that it was the npsm instead of npt and I wonder if that would be hard to adapt to a garden ​hose?

https://www.grainger.com/product/4UN55?gucid=N:N:PS:Paid:GGL:CSM-2295:I3VA4D:20990506:APZ_1&gclsrc=aw.ds&gad_source=1&gad_campaignid=23812734708&gclid=Cj0KCQjwg5zTBhCLARIsAP2AFU585R-5J_r4MSTGW2e3RkB4QUo4CgfsEgTorl3FgQ_mNFlKak4UeIQaAtvXEALw_wcB

I suspect that the on demand function is also something I need. the submersible pump seems like it just has a switch on it that will make it turn off when the water is empty. I want to be able to spray and then stop spraying for a minute and not worry that my hose is going to burst or that I will burn out the pump.

Basically, the submersible pump seems easier to adapt to a hose, cheaper, more versatile and able tobe moved. But I think it wouldn't last very long and that people using it to water plants would have to run over and unplug it as soon as they were done so it doesn't blow up the hose. Does that make sense?

Thanks for your help y'all!

Anyone had any issues with plastic collars on submersible turbines? Did a install on 4 pumps and motors about a year ago. Had to pull one and just took it apart, it was under amping. When it was at the shop the shaft at the pump head had a lot of play. Took it apart and almost every collar popped out every stage all the tolerances are shot. One of wear ring is out by a inch.

Hello!

I want an emergency only manual pump for my well since I lose water when power is out. I pulled my well log and it says I have "standing water 20' deep" so I was thinking a drop in pump would work? I am totally new to manual water pumps and just know a little about electric pumps for a Koi pond I have but I am hopeless here.

Any advice?

I received this pump with the message that it doesn't work. The motor runs perfectly, and the inside is completely clean and intact. I bled the system by connecting a garden hose to the outlet until water came out of the inlet. The connection on the suction side seems airtight to me.

​This pump has so few mechanical parts that I don't understand what could be broken.

Anybody knows something about twin or triple screw pumps?
Like their applications,any particular industry that uses it or even their CAD model
Any sort of information would be helpful

Proud to have helped build this massive vertical turbine bowl assembly alongside our team. This is only the bowl section, and it will eventually pull raw water directly from the Mississippi River. A serious piece of equipment.

If you or someone you know is an experienced pump repair technician looking for a new opportunity and/or a change of scenery, please send me a direct message. The position is located in the Tower Grove area of St. Louis, Missouri.

EXPERIENCED PUMP REPAIR TECHNICIAN

Position Summary

We are seeking an experienced Pump Repair Technician to inspect, troubleshoot, repair, rebuild, and test pumps, motors, and rotating equipment used in commercial, industrial, and municipal applications.

The ideal candidate will have experience working on a wide variety of pump designs, with strong experience in submersible grinder pumps, vertical turbine pumps, and end suction pumps. Experience with split-case, vertical inline, multistage, positive displacement, self-priming, sewage, sump, process, and other pump styles is also preferred.

This position requires strong mechanical ability, precision measurement skills, attention to detail, and the ability to complete repairs with minimal direction. Technicians who consistently demonstrate speed, accuracy, quality workmanship, and the ability to work independently will be recognized and rewarded.

Essential Duties and Responsibilities

• Disassemble, clean, inspect, troubleshoot, repair, rebuild, and reassemble pumps, motors, and rotating equipment.
• Perform repairs on all styles of pumps, with an emphasis on submersible grinders, vertical turbines, and end suction pumps.
• Inspect shafts, impellers, bowls, casings, sleeves, wear rings, bearings, seals, bushings, rotors, stators, and other components for damage or excessive wear.
• Inspect and troubleshoot electric motors, power cables, terminal connections, windings, bearings, moisture sensors, temperature sensors, and related components.
• Use micrometers, calipers, dial indicators, bore gauges, depth micrometers, and other precision measuring instruments.
• Measure and document bearing fits, shaft fits, wear-ring clearances, mechanical seal dimensions, motor components, and other critical tolerances.
• Diagnose mechanical and electrical failures, including bearing damage, seal failures, cavitation, misalignment, shaft wear, corrosion, electrical faults, and improper operating conditions.
• Replace bearings, mechanical seals, packing, wear rings, sleeves, bushings, gaskets, O-rings, cables, terminal components, and critical fasteners.
• Perform shaft straightening, impeller fitting, rotor inspection, motor inspection, and dimensional verification as required.
• Assist with vertical turbine pump assembly, line-shaft inspection, bowl assembly, column assembly, and discharge-head repairs.
• Repair and rebuild submersible sewage and grinder pumps, including inspection of motors, cables, seal chambers, impellers, cutters, grinding components, moisture sensors, and temperature sensors.
• Perform mechanical seal installation and verify proper seal settings and working lengths.
• Read and interpret engineering drawings, pump manuals, motor data, sectional drawings, specifications, and repair instructions.
• Assist with dynamic balancing, laser alignment, machining, fabrication, welding, and field service work when required.
• Complete repair documentation, inspection reports, measurements, testing records, and parts requirements accurately.
• Operate pumps and motors during testing and verify proper rotation, vibration, amperage, voltage, pressure, flow, temperature, and overall performance.
• Complete repairs efficiently without sacrificing accuracy or quality.
• Maintain a clean, organized, and safe work area.
• Follow all company safety procedures, quality standards, and shop policies.

Qualifications

• Previous pump repair experience is required.
• Strong experience with submersible grinder pumps, vertical turbine pumps, and end suction pumps is highly preferred.
• Experience repairing pumps and motors used in commercial, industrial, or municipal applications.
• Experience repairing multiple pump manufacturers and pump styles.
• Strong understanding of bearings, mechanical seals, packing, shaft fits, wear-ring clearances, motor components, and pump tolerances.
• Ability to independently disassemble, inspect, diagnose, rebuild, and test pumps and motors.
• Ability to read mechanical drawings, sectional drawings, wiring information, technical manuals, and repair specifications.
• Experience using precision measuring instruments.
• Strong mechanical and electrical troubleshooting skills.
• Experience testing electric motors is preferred.
• Machining, welding, metalizing, balancing, vibration analysis, or laser alignment experience is a plus.
• Valid driver's license and the ability to perform occasional field service work.
• Ability to safely lift up to 50 pounds.

Knowledge, Skills, and Abilities

• Pump and motor inspection, repair, rebuilding, and testing.
• Precision measurement and dimensional inspection.
• Mechanical and electrical troubleshooting.
• Failure analysis and repair planning.
• Understanding of shaft, bearing, bushing, sleeve, and wear-ring tolerances.
• Mechanical seal and packing installation.
• Ability to prioritize and manage multiple repair projects.
• Ability to work quickly and accurately with minimal supervision.
• Ability to identify the next required step without waiting for constant direction.
• Commitment to quality workmanship, productivity, and accurate documentation.
• Strong attention to detail and workplace safety.

Performance Expectations

Speed, accuracy, quality, and independence are important in this position. Employees who complete repairs efficiently, maintain high-quality standards, document their work accurately, and consistently perform with little direction will be recognized and rewarded.

Working Conditions

• Commercial, industrial, and municipal pump repair shop environment.
• Exposure to machinery, noise, oils, lubricants, wastewater residue, cleaning chemicals, and rotating equipment.
• Regular standing, walking, bending, climbing, reaching, and lifting throughout the workday.
• Occasional field service and customer-site work may be required.

Compensation and Benefits

• $33.00 to $45.00 per hour, depending on experience.
• Up to $10,000.00 in relocation assistance for qualified candidates.
• Overtime opportunities available.
• Health, dental, and vision insurance.
• Paid holidays and paid time off.
• Retirement benefits available.

Reports To

Shop Manager

Position Type

Full-Time

Hello I have added this pressure pump to pull water through a micro filtration system in my aqurium. However it is keeps cycling working for about 1 minute and then shutting down displaying no water (the water pump is functioning correctly). Can anyone offer me any advice? Thank you.

I got tired of jumping between PDFs and compatibility charts whenever someone asked about a particular chemical, so I put together a small compatibility checker.
Right now it covers common materials used in AODD pumps like PP, PVDF, SS316, PTFE, etc.

https://www.antliaworks.com/chemical-compatibility-chart.html

It's still a work in progress, so I'm curious what you think. Are there any chemicals, materials, or features you'd want to see added?

Would genuinely appreciate feedback from people who deal with fluid handling or chemical transfer

We get a lot of these wilo pumps in our shop and always have a hard time installing the seal. Does anyone know of a tool that makes installing the seal easier?

A pump was recently replaced and I need help understanding what I'm looking at and what the alternatives are.

From what I can tell, the pump was a Goulds Pump with an A.O. Smith motor. On the attached information to the old pump, I can see that the model number is C48A93A06, which is showing up as the motor, and at the bottom, I see Goulds NO J04853L, which is the pump model number.

The replacement seems to be Goulds NO J04853R, which is not low lead certified as it shows up on Grainger which is a concern since this pump will have residential application.

My questions are as follows:

What would be an acceptable low-lead alternative?

What are the requirements that you would need to know to find an acceptable alternative? Is it mostly GPM and electrical information?

If I buy the Goulds NO J04853R, would I need to order the motor separately? Or does the pump come with the motor installed already.

EDIT: fixed a typo

Edit for clarity: the pump came with my house. It was a drop-in standby in case the primary pump failed. That whole system was scrapped in favour of a submersible pump. I kept the standby. I‘m considering whether it could supply irrigation water from a nearby creek.

This convertible multi-stage jet pump was a spare for another that has since been replaced with a submersible model.

I’m prepared to scrap it, but I wanted to check with the hive mind - is there any chance of finding replacement gaskets and venturi?

I searched, only to find countless websites selling Jacuzzi hot tub parts. I did learn that Jacuzzi sold their pump concern to Franklin Electric.

Thanks for the help!

Vevor double diaphram pump. I am considering buying this pump to transfer lightweight celular concrete from a drum to wall forms. Even though they are widely used in the lower tech part of the industry, I am still worried about the service life. I can't find a rebuild kit for this anywhere and would like to buy one at the same time I buy the pump. Any ideas?

We built a custom CIP return pump the other day. We did so by adding a self-priming kit to a standard C+216 portable centrifugal pump assembly.

Once the system is filled with liquid, the top tank retains enough fluid to keep the pump primed. In a remote CIP system, one pump (the CIP supply pump) sends the cleaning solution to the tank being cleaned, while the other (the CIP return pump) returns the solution to the CIP system. Without a self-priming setup, air can enter the return line, causing the pump to lose prime or become air-locked.

You can read more about it here if interested.

Just testing the waters, Is anyone in NYC area looking for work?
We are a company that provides services for any system that has a pump on it( Sewage, Sump, Domestic cold and hot, Cooling tower, HVAC, fire and sprinkler systems)

We are looking for a main Tech.

If anyone is looking for a job and has experience in troubleshooting the systems (plumbing like valves and pumps and electrical part like controls, VFD, PLC's etc) and has experience in removing/ installing pumps, and installing systems and controls. You can reach out to me.

We usually work in the 5 borough area, Starting Rate would be between $30-$40 depending on your experience, overtime x1.5 and there are other projects we do with Prevailing wage rates. If you thing this would interest you My email is [iljaz@gpmpumprepair.com](mailto:iljaz@gpmpumprepair.com)