rollaholic wrote:crap in tank, sure.
floating, not so sure.
causing problems, possibly.
fuel level related, not so sure.
Get a glass or plastic container with a flat bottom, add dome random crap, anything that might resemble crap on the bottom of a tank, add water to resemble a fullish tank and move the container around to create a disturbance (crap on the bottom will not be very effected), then pour out most of the water and repeat (crap on the bottom is much more effected by lower level of fluid)