Hi, I need a new pump for my pond but I've refused to buy a 'proper' one because they are always ridiculously expensive. However today I have bought a pump on sale, as a special, at my local supermarket at a very reasonable price, the problem is that it is, to say the least, a bit excessive.
It is 600w and 13,000 litres per hour, my little waterfall looks like Niagra falls in full flood. To say nothing of the 600w of energy that I am wasting.
I've put a dimmer switch in series with it and it slows it down but my knowledge of electronics and motors is very poor.
Can anyone tell me if using a dimmer switch is likely to have some horrible effect like burning out the windings? Or is there another way to slow it down and use less electricity?
I presume that it is an induction motor, but I can't tell without dismantling it.
You can see the pump here....