1.   An exhaust vent to the side with a blower attached to pressurize the cavity beneath the swim deck where fumes accumulate.

2.   But the swim decks are located where deadly fumes are emitted from the exhaust.

3.   Ethington, still in the water, laid his head on the open-slatted swim deck.

4.   He bopped up four or five times into the air space below the swim deck to breathe.

5.   He is directly beneath the swim deck of the houseboat, right where the generator spits its exhaust.

6.   Seven deaths at Lake Powell have been associated with houseboats with generators that vent to the rear of the craft under the swim deck.

7.   Six of the Lake Powell victims were swimming or working on their houseboats in the space under the swim deck.

8.   She was sitting and may have been dragging on the swim deck.

9.   The Coast Guard said the four proved that rear-mounted generator exhaust vents allowed carbon monoxide to collect at extremely hazardous levels around and under the swim decks.

10.   The new report asks ski boat operators to prohibit their passengers from playing or riding on the swim deck with the engine running or idling.