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Dewatering Toolbox

Your all-in-one suite for precision dewatering. Whether you’re calculating friction loss, converting pump models, or optimizing pit drainage, our professional-grade toolbox delivers fast, reliable results—right in your browser.

Discover intuitive friction loss calculators, comprehensive pump conversion charts, and advanced dewatering analysis tools designed by industry experts. Empower your engineering decisions with clear data, seamless workflows, and actionable insights.

Ready to streamline your workflow?
Start using Dewatering Toolbox today and experience the smarter way to manage mine dewatering projects.



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Dewatering Toolbox

Comprehensive Dewatering Tools
 
Dewatering Toolbox delivers a complete suite of online dewatering tools designed to tackle groundwater management in mines, construction, and civil works. “Dewatering” refers to the removal of water from a location—whether lowering a pit’s groundwater level or draining a settlement pond—using methods such as pumping, filtration, or wellpoints.
Proper dewatering ensures safe, stable excavations and uninterrupted operations in challenging hydrogeological settings.
 
 
Friction Loss Calculator
 
Our Friction Loss Calculator quickly estimates head loss in pipelines using industry-standard equations (Hazen-Williams and Darcy-Weisbach). Simply input flow rate, pipe diameter, length, and material to get loss per 100 m of line 
This tool helps engineers size pipelines, select appropriate pump capacities, and optimize system efficiency without manual charts 
 
 
Pump Sizing & Model Conversion Charts
 
Select the right dewatering pump with our Pump Sizing Calculator and Pump Model Conversion Charts. By entering duty point data (flow, head, and fluid properties), you can compare submersible and self-priming models across leading brands in seconds 
Integrated conversion tables translate between horsepower, kW, and pump curves—ensuring seamless specification and procurement of professional-grade equipment.
 
 
Ready to streamline your dewatering projects?
 
Explore each tool in Dewatering Toolbox collection and unlock faster, data-driven decisions for safer, more efficient groundwater management.

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Privacy Policy

Privacy Policy for Dewatering Toolbox

Last updated: 3/5/25

At Dewatering Toolbox, your privacy matters. 

This policy outlines how we collect, use, and protect your personal information when you use our website and tools.

1. What We Do
Dewatering Toolbox provides free online tools for:

Calculating friction loss in pumping systems

Converting pump model numbers and product codes

You can use most of our tools without submitting personal information.

2. Personal Information We Collect
We only collect your email address if you choose to receive your calculation results via email. No other personal data is collected.

3. How We Use Your Email
If you provide your email:

We use it only to send you your requested calculation results.

We do not sell, rent, or share your email address with any third parties.

You will not be added to a mailing list, unless you explicitly opt-in to updates or newsletters in the future.

4. Cookies & Analytics
We may use basic cookies or analytics tools (e.g., Google Analytics) to improve our website experience. These do not collect personal data like your name or email.

5. Data Security
We take reasonable precautions to keep your information secure. Emails are transmitted securely, and we do not store your data beyond what is necessary for the delivery of your results.

6. Your Rights
You may request that we delete your email from our system at any time by contacting us at:
- privacy@dewateringtoolbox.com

7. Changes to This Policy
We may update this Privacy Policy from time to time. Any changes will be posted on this page with a new "Last updated" date.

8. Contact
For questions or concerns about your privacy, contact us at:
- privacy@dewateringtoolbox.com

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Dewatering Toolbox -Disclamer

Disclaimer for Dewatering Toolbox

Last updated: 3/5/25

The tools, calculators, and conversion tables available on https://dewateringtoolbox.com are provided for informational and guidance purposes only. They are intended to assist engineers, project managers, and technical users in estimating values related to pump selection, friction loss, and equipment comparisons.

⚠️ Not a Substitute for Engineering Advice
While we strive to provide accurate and useful calculations, all results generated by our tools should be treated as preliminary estimates. They are not intended to replace professional engineering judgment or site-specific analysis.

Before making any design, procurement, or operational decisions, we strongly recommend consulting with a qualified engineer or technical professional.

📘 No Warranty or Liability
Dewatering Toolbox makes no representations or warranties, express or implied, regarding the accuracy, completeness, or applicability of any content or calculation on this site.

By using this website, you agree that you do so at your own risk.

No liability or responsibility will be accepted by Dewatering Toolbox, its creators, or partners for any loss, damage, or consequence arising from the use of the information provided.

🔒 Your Responsibility
It is the user’s responsibility to verify all results and ensure their suitability for any specific project, site, or condition.

Friction Loss Calculators

Understanding Friction Loss Calculators

Understanding Friction Loss Calculators – A Guide for Dewatering Professionals

If you're working on a pumping project, friction loss isn't just a minor detail—it's a critical factor that can make or break your system's efficiency. Whether you're designing a mine dewatering setup, an agricultural irrigation line, or a heavy-duty industrial transfer, knowing how to accurately calculate friction loss can help you size your pumps correctly, reduce energy costs, and avoid costly mistakes.

At Dewatering Toolbox, we provide free online friction loss calculators designed specifically for industry professionals. In this article, we’ll break down the two main types of friction loss calculation methods, highlight the advantages of using our tools, and explain when and why you should use them.

What Is Friction Loss in Pumping Systems?
Friction loss refers to the resistance water (or other fluids) encounter as they move through a pipe. This loss is caused by the roughness of the pipe’s inner surface, fittings, valves, flow rate, and pipe length. It’s measured in meters (m) or feet (ft) of head and must be added to the system's Total Dynamic Head (TDH) when selecting a pump.

The Two Main Types of Friction Loss Calculators
1. Hazen-Williams Equation (Best for Water at Room Temperature)
The Hazen-Williams method is widely used for calculating friction loss in clean water systems—especially in the civil, irrigation, and mining sectors.

Pros:

- Easy to use

- Requires fewer inputs

- Ideal for quick estimates

Limitations:

- Less accurate for fluids other than water

- Doesn’t account well for changes in temperature or viscosity

- Not recommended for slurries or thick fluids

Use Hazen-Williams if you’re dealing with clean water in common piping materials like HDPE or steel.

2. Darcy-Weisbach Equation (Precision Calculation for Engineers)
The Darcy-Weisbach method is considered more accurate and is often used in detailed engineering calculations. It factors in:

- Pipe diameter

- Flow velocity

- Fluid density and viscosity

- Pipe roughness (ε)

Pros:

- Highly accurate

- Works for all fluid types

- Suitable for slurry, chemical, or heated systems

Limitations:

- Requires more data

- Slightly more complex to use manually

Use Darcy-Weisbach when you need precision—especially for dewatering projects involving long pipe runs, elevated temperatures, or abrasive slurries.

Why Use Our Friction Loss Calculators?
At Dewatering Toolbox, our tools are built for real-world use. 
Whether you’re a site engineer, project manager, or technician, our calculators are:

✅ Easy to use – No complex spreadsheets or software installs
✅ Accessible online – Use from the field or office
✅ Tailored for mining and dewatering – Includes metric and imperial units
✅ Send results to your inbox – For recordkeeping and sharing with the team

We also offer conversion tools for pump model numbers and product codes to make your pump selection process even easier.

Important Note on Limitations

While our calculators are designed to give you a strong starting point, they are meant as guides only. 
They should not replace detailed hydraulic modeling or professional engineering review for critical systems. 
Always validate your results before making procurement or installation decisions.

Final Thoughts: Save Time & Reduce Risk

Choosing the right pump begins with accurate data. 
Whether you're dealing with high flow rates, long discharge lines, or aggressive solids, friction loss is a key variable—and getting it wrong can lead to pump oversizing, inefficiencies, or outright failure.

That’s why thousands of professionals trust Dewatering Toolbox for quick, accurate friction loss estimates that support smarter decision-making.

🔗 Try our Friction Loss Calculator now at DewateringToolbox.com
🛠️ It’s fast, free, and built for the field.

Terms of Use

Terms of Use

Effective Date: 3/5/25

Website: https://dewateringtoolbox.com

Welcome to Dewatering Toolbox. By accessing or using this website and its tools, you agree to comply with the following Terms of Use. If you do not agree with any part of these terms, please do not use the website.

1. Use of the Website
Dewatering Toolbox provides online tools and calculators designed to assist in the estimation of friction loss, pump sizing guidance, and conversion of pump model numbers or product codes. These tools are intended for informational purposes only and are not to be considered final engineering outputs.

You agree to use the site and its tools responsibly and in accordance with all applicable laws and regulations.

2. No Professional Advice
All content, tools, and outputs provided on this site are for general guidance only and are not a substitute for professional engineering advice. You should always consult with a qualified engineer before making decisions based on results from our calculators.

3. Accuracy of Tools and Content
We strive to keep the website and its tools accurate and up to date. However, we do not guarantee the accuracy, completeness, or reliability of any results or information provided. You use this site at your own risk, and Dewatering Toolbox accepts no responsibility for any decisions made based on the content or calculator outputs.

4. Limitation of Liability
Under no circumstances shall Dewatering Toolbox, its creators, affiliates, or partners be held liable for any direct, indirect, incidental, or consequential damages arising from:

The use or inability to use this website or its tools

Reliance on any content or data provided

Errors, omissions, or inaccuracies in the information

Any system outages or data loss

Your sole remedy for dissatisfaction with the site is to stop using it.

5. User Input and Email Submission
If you choose to enter your email address to receive calculation results:

We will use your email only for the purpose of delivering your results.

Your email will not be sold, shared, or used for marketing unless you explicitly opt in.

You are responsible for the accuracy of the information you submit.

See our Privacy Policy for more details.

6. Intellectual Property
All content, tools, text, graphics, and layout on this site are the intellectual property of Dewatering Toolbox. You may not reproduce, redistribute, or use any material from this site for commercial purposes without written permission.

7. Third-Party Links
This site may contain links to third-party websites. Dewatering Toolbox is not responsible for the content or accuracy of any external sites and provides these links for convenience only.

8. Changes to These Terms
We may update or modify these Terms of Use at any time without notice. It is your responsibility to review this page periodically. Continued use of the site constitutes your acceptance of any revised terms.

9. Contact Us
If you have questions or concerns about these terms, please contact:
- support@dewateringtoolbox.com

By using Dewatering Toolbox, you acknowledge that you have read, understood, and agree to these Terms of Use.

HDPE Pipe ID & Velocity Calculator

HDPE Pipe ID & 
Flow Velocity Calculator

Lorem  New Tool: HDPE Pipe ID & Flow Velocity Calculator – Fast, Accurate & Free
If you're working on a dewatering system, mine pipeline, or irrigation layout, choosing the right HDPE pipe size isn’t just a matter of preference—it’s a matter of efficiency, safety, and cost control.

That's why we've launched the new HDPE Pipe ID & Flow Velocity Calculator at Dewatering Toolbox – a simple but powerful tool designed to help engineers, project managers, and field technicians get the right numbers fast.

🚀 What the Tool Does
This tool allows you to instantly calculate the internal diameter (ID) of an HDPE pipe based on:

Nominal Diameter (DN)

PN (Pressure Rating)

SDR (Standard Dimension Ratio)

At the same time, you enter your flow rate in L/sec, and the tool automatically calculates the flow velocity in m/s based on the pipe’s internal diameter.

But that’s not all—we also provide helpful insights on:

Optimal flow velocity ranges

How to reduce wear, erosion, and cavitation

How your flow compares to industry recommendations

🎯 Who This Tool Is For
This calculator is ideal for:

Mine dewatering engineers

Civil and agricultural irrigation designers

Pumping contractors

Site supervisors reviewing HDPE pipeline layouts

Anyone needing accurate pipe sizing for hydraulic performance

🔍 Why Flow Velocity Matters
Flow velocity is a critical variable in any pumping or piping system. If it's too low, solids may settle and clog the pipe. If it's too high, you risk pipe wear, erosion, energy loss, or even cavitation at pump inlets.

Our tool helps you avoid both extremes by giving you:

A precise velocity value

A recommended velocity range for most applications (e.g., 1.0 – 3.0 m/s for clean water)

Alerts when the flow is outside safe operating limits

✅ Benefits of Using This Tool
Instant results – All values calculated at once—just enter your DN, PN, and flow rate

Mobile-friendly – Use it on-site via phone or tablet

Accurate selections – Avoid under- or oversizing your HDPE pipes

Totally free – No sign-ups, no logins, just results

Supports pipeline and pump design – Use it alongside TDH and friction loss calculations

📈 Boosting Your Project’s Efficiency
Whether you’re designing a 12km mine dewatering line or a short transfer pipe, having accurate pipe ID and flow velocity data can help you:

Extend equipment life

Improve system efficiency

Minimize energy costs

Avoid unplanned shutdowns

🔗 Try It Now
👉 Use the HDPE Pipe ID & Flow Velocity Calculator today and get the data you need in seconds.

It’s the smarter, faster way to make informed decisions—and it pairs perfectly with our Friction Loss and Pump Conversion tools.

✍️ Final Thoughts
At Dewatering Toolbox, we’re building a suite of practical engineering tools for real-world professionals. No fluff—just calculators and conversion tools you can trust.

Bookmark the site, share it with your team, and keep checking back for new releases.

🛠️ Built by professionals, for professionals.
🔗 Visit DewateringToolbox.com

HDPE Pipe ID & Flow Velocity Calculator

Flow & TDH to Cornell Pump Guide

Flow & TDH to 
Cornell Pump Guide

🌍 Find the Right Cornell Pump – Fast: Your Flow & TDH to Pump Model Guide.

When you’ve got your flow rate and total dynamic head (TDH) worked out, the next big question is:
Which pump model fits the job?

If you’re working in mining, dewatering, agriculture, or water transfer, chances are you’ve already heard of Cornell Pumps—and for good reason. 
With nearly eight decades of pump manufacturing experience, Cornell has built a global reputation for producing high-efficiency, long-lasting pumps trusted on thousands of job sites across the world.

Now, to make choosing the right Cornell pump model easier than ever, we’ve created a new tool at Dewatering Toolbox:
👉 Flow & TDH to Cornell Pump Model Guide

🏭 A Brief History of Cornell Pumps
- Founded in 1946, Cornell Pump Company has spent over 79 years refining their designs and pushing pump performance forward.
Today, Cornell pumps are:

- Built in the USA

- Trusted in over 50 countries

- Found in applications ranging from mine dewatering, irrigation, wastewater, and food processing, to slurry handling and clear water systems

Their reputation is built on three core principles:
✅ Efficiency
✅ Durability
✅ Engineering precision

But if you’ve ever tried to match a Cornell pump model based on flow and head alone, you know—it can be confusing unless you know the codes.

🧠 Why We Built This Tool
Over time, many pump suppliers, contractors, and engineers have gotten used to describing pumps based on:

- Flow rate in litres per second or gallons per minute

- TDH in meters or feet

- General pump style or use case

- But that doesn’t always match up with how Cornell model numbers are structured.

- So, we created a smart lookup tool that bridges the gap.

You enter your required flow and head, and the tool gives you a list of matching Cornell pump models—based on common configurations and decades of field experience.

🔍 What Makes This Tool Unique?
✅ Cross-referenced to typical pump duty points
✅ Matches real-world system conditions
✅ Speeds up pump selection – no need to scan endless PDFs
✅ Ideal for replacements or new builds
✅ Helpful when moving from other brands to Cornell

This guide also works well if you’re trying to cross-reference another manufacturer’s pump with a Cornell equivalent.

🛠️ How It Works
- Input your flow rate (L/s)

- Enter your TDH (m)

- Click to search

You’ll get:

- A list of Cornell pump models that closely match

- Suggested ranges (±10–15%) to help you understand flexibility

- A jumping-off point to download technical data or request a quote

⚠️ A Reminder: Every Project Is Unique.

While this tool is a great starting point, pump selection isn’t always plug-and-play.
Always consider:

- Fluid type (clean water vs slurry)

- Solids content

- Altitude, temperature, NPSH, and other site-specific factors

For final selection, we recommend reaching out to an authorised Cornell distributor (like Source Pumps in Australia) or speaking with a qualified engineer.

🔗 Try the Cornell Pump Model Guide Now
👉 Use the Flow & TDH to Cornell Pump Model Lookup Tool

It’s free, fast, and saves hours of digging through manuals and catalogues.

Whether you're on a site needing an urgent replacement, or quoting a new dewatering project, this guide gives you a solid shortlist to work with.


More tools are being added regularly—so stay connected and bookmark the site.

- Built by professionals, for professionals.

- Because better tools mean better decisions.


Our company adapts to your evolving needs, offering a versatile collection of GPTs designed to enhance your overall workflow and productivity.

A tool for calculating friction loss in HDPE poly pipe for dewatering and pumping projects in the Australian mining and industry sector.

Friction Loss Calculator

Flow plus is for quick HDPE head loss calculations. (Darcy-Weisbach Method)
The answers can be sent to your email box for later reference.

Flow plus

Flow lite is for quick HDPE head loss calculations. 
The answers can be sent to your email box for later reference.

Flow lite

Kmz file to km & RL min - max

Looking for an 80-180 pump, but just not sure the model number? 
Well, this lookup tool should help you with that task.

Flow & TDH to Cornell Pump Model Guide

Do not ask your self again, what is the Internal Diameter of that poly pipe?