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About www.pump-demo.com

Picture of Fredrik Jacobsson


My name is Fredrik Jacobsson and I have a history of water gardening (family run water garden centre) for over 18 years. I am also a computer programmer/web developer. The fact that I know the business by experience has enabled me to develop some unique sales support tools for the water gardening market.


All of my pond calculators are free to use on this website. You are not allowed to copy, modify or distribute any portion of the code on this website without permission.


The demo calculators on this site are provided "as is" and Fred's Konsult cannot be held responsible for errors in the displayed values.

Why we have Google ads on this website

The Goggle ads help us keep the public calculators running. The ads do also serve the purpose of preventing commercial use of the free calculators.

Privacy Policy

Google, as a third-party vendor, uses cookies to serve ads to you based on your visit to our site and other sites on the internet. If you want to opt out of our third-party advertiser (Google Adsense)’s use of cookies, please visit the Google ad and content network

Link to our calculators

If you want to link to the calculators, please send us a short mail and tell us the address of the page where you put the link to our calculators.

Contact information

For more information, license-fees or new ideas, you are welcome to contact me:

Fred's Konsult
Fredrik Jacobsson
Stabbläggargatan 54
SE-80131 Gävle

E-mail: fredrik@fredskonsult.se
Phone: +46 (0) 70-520 58 99
EU Vat-no: SE720710001201

English Website: http://www.pump-demo.com
Swedish Website: http://www.fredskonsult.se

Copyright 2000-2015 - Fredrik Jacobsson, Fred's Konsult, Sweden

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