Pump sizing, how easy to get it wrong
Parent Category: FAQs
Published on Friday, 28 March 2014 11:31
Written by Bob Goldsteen
746 watts=1 hp, sounds simple? Some one offers you a 1 hp pump but maybe it is only 0.7 hp or 520 watts as you were quoted the input not the output. Ask to see the book where all the specifications are printed.
The next item is labeling, some call a 1 hp output a 1000,100, 1.0 which may infer that the 1 hp pump is 1 kw i.e. 1000 watts not 746. A bit deceptive even though it does loosely relate to the input
Confused yet? some companies rate their pumps by flow rate, not a horse power or watt anywhere.
Flow rate is the best system as the whole system maybe worked out correctly. IF you need a new pump, bigger is not necessarily better, IF flow rates are all wrong, it just puts up the pressure and costs more electricity. As a qualified electrical contractor, pool and spa builder for many years, I talk to many customers that are bewildered due to conflicting advice, it is difficult for people to filter the facts with regards to their requirements. What are the qualifications of the person to whom you are speaking? As a qualified, licenced supplier and installer of equipment it is my duty to you, to select the correct and best priced alternatives for your job. Some low priced stuff is just fine, but, just buying anything because it's cheap will not do, especially if you get the size wrong. Call Bob, I'll work it out for you 0243690299