I wouldn't say making a shroud to increase flow is admission to fault but a way to make amends to the customers that do feel cheated. I like tunze they makeba great product although I run vortex pumps the products and customer service that tunze make are prime. said:
I love tunzes that is what I use from return pump, skimmer pump, powerheads and wave box. They are making a new shroud and doing something to power supply to increase flow.
Who ever started the suit was just greedy. I don't know anyone who owns a vortech or a tunze that leaves the pump at 100% usually they do some type ramp up and down mode for random flow.
From what a water hydrologist posted comment on rc on water flow dynamics he said that this suit has no leg to stand on.
There are many things in this hobby we could be suing manufactures for for example the spectrum of mh bulbs if from you put a radium, reflex and xm 20k side by side and fired them up they would all look different which one is the real 20k.
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