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My Artesian Piper Glen has a foot dome with four spinner jets on the sides of the dome and a single geyser (whirlpool jet) in the center. There is a diverter valve to select between the geyser and the spinners. The geyser is a good strong jet, while the four spinners feel a bit under powered to me. I'm going to disagree with Vinny on the value of the whirl pool jet as use mine all the time.
Bob,Maybe it's the location of mine, it's not in dead center as the Piper's is but center and toward one side. I've heard that it makes a great foot/leg messager but I don't see how, at least in the Cayman. When I was looking at Emerald Spa they had a whirlpool jet and it was positioned to swirl the water around in the tub. I think Marquis has a tub like that.As far as the foot jets being weak, I have nothing to compare them to. Is the Piper's foot jets plumbed by themselves or do they share other jets? The Cayman's 3rd pump operates the foot jets, whirlpool and a large jet opposite the filter - all the jets can be turned off except the whirlpool which can be turned down to a trickle.The foot jets don't feel to have the power as the other jets do but I wasn't looking for that in the tub, at least not yet.Vinny