Drill Pump for Aquarium / Hot Tub

I'm very pleased with this contraption I made:
Drill Pump on Amazon: https://geni.us/Hs9p5
This pump seems to be available in loads of different countries so hopefully this video will help lots of people.
It really solved a problem since I previously couldn't entirely empty the hot tub and removing sand from it was very time consuming.
It is great to have on hand if I ever need to drain a barrel, oil tank or sump - I think I will buy another so I have one for the hot tub and one for oil / petrol or anything else.
It will easily and quickly fully empty a sump or aquarium with no mess.
The impeller sounds like it is made from soft plastic and it literally wouldn't hurt a fly as demonstrated at the end of this video.......
Thanks for watching.

FILMING EQUIPMENT:
Panasonic HC-VX870 HD camcorder http://geni.us/3UwE
+Rode stereo microphone: http://geni.us/4OL
+Rode 'deadcat' mic cover: http://geni.us/1pmn
JVC Everio quad proof HD camcorder: http://geni.us/e09e
+Rode 'deadcat' mic cover (opened up and held between tripod and camera base) http://geni.us/dee24
Zomei Z666 tripod: http://geni.us/1a1af3
Manfrotto MTPIXI-B PIXI mini tripod: http://geni.us/87f7

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See you next time.
Pondguru