It may be just resistance in your wiring.
You lose power for many reasons but alot is lost just by resistance within the wire because of the wire size.
Distribution of power through small diameter wire causes resistance and hence higher draw values.
I have no idea what wire size you have used for feeding your pumps but if you have used standard extention cords the they are probably 16 or 14 gauge and twisted wire.
It would be cheaper to operate with 10 or 12 conductor wire size.
If your whole system is feed with flexible wire it will also have greater resistance the solid core cable.
Just one of the many reasons you lose power through a wiring system.
If you have the main distribution from your breaker with cable to a series of outlets and only use the flex attached to the pump itself you will find that you will draw less current than if drawing all power through flex's.
It is the old enemy voltage drop over distance
Just to let you know why your pumps are drawing more power than labelled.
RayI
--- In PONDERS_INTERNATIONAL@yahoogroups.com, "Yolanda Martin - kb4mes" <kb4mes@...> wrote:
>
> I have 8 Laguna pumps/filters for my 4 above ground Koi pools (3 sm, 3 med, and 2 large). I also have 5 spitters/pumps that help aerate combined with a second level pool/waterfall into the large 8 ft pool. It says the pumps use 32w and 64w but when I turn the pumps/filters/spitters off during the high peak electric kw rates time of day use price plan m-f, 3-6 it saves 2 kw as seen on the smart meter for my home. I am wondering why the meter reports the pumps as using much more power than what the stated kw on the pump says it should be using. Perhaps that rating is for a pump itself not considering the extra strength needed to pump up 2 ft or if the filters are dirty and need cleaning.
>
> Turning the pumps off during that period of time doesn’t affect the health of the fish or water quality yet saves me almost $15/month during the peak summer 2 months of highest per kw price .35 cents/kw. The off peak is only .0788 cents/kw. Electricity to run the pumps costs a lot of money but I like the fact that I have 2 or more pumps per pool so that if one fails the other usually is still running and I can then repair the one that is inoperable for some reason or another (usually needs the impeller cleaned and while doing that I clean the sponge filters in the canister of the filter). I live in Phoenix, Arizona and my utility company is Salt River Project (SRP).
>
> From: Dr. Mann
> Sent: Tuesday, July 31, 2012 8:24 AM
> To: PONDERS_INTERNATIONAL@yahoogroups.com
> Subject: [PONDERS_INTERNATIONAL] Tip of the Week #24
>
>
> When choosing a new pump for your water feature, it is important to look at all factors. Obviously, we first want to make sure the pump will provide the desired flow. Then we look at purchase price, and warranty. An often overlooked factor is the cost of operating the pump.
>
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