The Complete Pond Solver by "The Pond Professor"... Tony Roocroft
The leading pdf book on water gardening written by Tony Roocroft, aka The Pond Professor is now in it's 5th edition. You can get access to this 220 page book immediately and start learning all you need to know about ensuring your pond will always be crystal clear and a delight to the eye as well as a significant financial asset for your home and family.
This site consists of brief summaries of some of the chapters in the book. By taking a look at the summaries you'll get a good idea about how valuable the complete book is yet it sells online for only $21 and includes all of Tony's free Excel calculators and the pdf book about Water Lilies
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Interactive Pond calculators
You will find a link to a different helpful article everyday at the bottom of this and every other page. And ... help yourself to my range of pond calculators . You can even get the code to place on your own web site so that you can offer these free calculators to your friends and customers
Important new pond pumps site
Save money on pond pumps, pond filters, backyard waterfalls, fountains, ponds, water gardening, koi food and How to achieve crystal clear garden pond water too.
When water is pumped through a pipe some of its energy is lost because the water slides along the walls of the pipe creating friction losses.
As you can imagine these losses increase with the rate of flow (velocity) of the water.
The practical implication of this when specifiying a pump for your pond is that you must estimate how much friction losses are taking place.
This amount of loss which can also be described as "head loss" must be added to the height the pump is required to pump to.
Note that this loss can be very significant in long pipes and narrow diameter pipes.
If you use more than 3 metres of pipe length, pump more than 2,000 litres per hour and especially if you use narrow tubing you MUST calculate the friction losses or decide to opt for at least 1 size bigger and maybe 2 sizes bigger pump and/or a wider/shorter pipe.
In addition to the pipe friction loss, losses also occur when valves are used in a system.
Losses also occur in restricted pipes, bends and so on. Get free calculators for pumps, and many other water garden uses here
These tend to be about 20% of the pipe friction loss.
While they can be calculated it is unnecessary for garden ponds (I build in an allowance in my computer program anyway).
The calculation is extremely complex and this is why you can get my free computer program available in an Excel spreadsheet format.
All you have to do is click on this e mail link and it will come to you.
If you do not have a waterfall you type in the volume you want to pump per hour instead.
The program will then calculate the exact pump specifications you need and upon which you can then rely.
If you try different situations you will see what I mean when I talk about the fact that small diameter and/or long pipes are bad news.
The program will work for all clean plastic pipes including large diameter pipes and very long ones.
The first site has a great deal of information on converting units from one type to another as well as tables showing pressure losses due to friction.
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