Bubble magus just got serious!

[Ron99]

Honestly, I don't see the point of a controllable pump on a skimmer. The pump's output should be matched to the skimmer. Making it adjustable just gives the end user one more setting to get wrong and have to balance with other settings. I prefer just an adjustable output (wedge pipe/gate valve etc) to get your water level in the skimmer right and maybe an adjustable volute/venturi to adjust the air draw. That's all you need. Why add another complication?

[Aqua-Digital]

I agree mostly however there are some benefits, it removes the need for water level adjustment in the sump and can be turned down at times of heavy feeding or nutrient loading.

it is not by any means a requirement of a performance increase. It also allows for sellers to sell pumps that do not require canadian health approvals such as CSA and TUV as the units fall under the class 2 category.

[StirCrazy]

Originally Posted by Aqua-Digital

It also allows for sellers to sell pumps that do not require Canadian health approvals such as CSA and TUV as the units fall under the class 2 category.

there is the absolutely best reason not to buy one in then, if sellers can't be bothered to get CSA approval for products then they have no right selling them in Canada, and yes I know they are exempt, but maybe they shouldn't be.

Steve

[Ron99]

Originally Posted by StirCrazy

there is the absolutely best reason not to buy one in then, if sellers can't be bothered to get CSA approval for products then they have no right selling them in Canada, and yes I know they are exempt, but maybe they shouldn't be.

Steve

+1 Good for the manufacturer. Keeps costs down so hopefully that translates to a cheaper retail price. But I suspect it benefits the manufacturer much more than the consumer.