Section 435.35 - Water Slide Flumes(1) Standards of water quality for water slide flumes shall conform with the requirements set forth in 105 CMR 435.28 through 435.30.(2) Clarity and cleanliness of the water shall be maintained by a continuous recirculation of the water through an appropriate filtration system approved by the Board of Health. A turnover rate of at least once per hour shall be maintained.(3) The operator of any water slide flume shall be familiar with the provisions of 105 CMR 435.000 and every other applicable law and regulation pertaining to water slide flumes.(4) If at any time the water does not conform with the requirements set forth in 105 CMR 435.35(1), the operator shall immediately close the water slide flume until the water conforms with those standards.(5) A flume shall be perpendicular to the splash down pool wall for a distance of at least ten feet from the exit end of the flume. The last ten feet of the flume shall have a slope which is not steeper than 1 in 10.(6) The distance between the side of a flume terminus and a splash down pool side wall shall be at least five feet unless the flume terminus is designed to move sliders away from the wall and the distance to an adjacent flume is at least eight feet. The distance between sides of adjacent flume terminuses shall be at least five feet. The distance between a flume terminus and the opposite side of the splash down pool shall be at least 25 feet and steps shall not infringe upon this area.(7) A flume shall terminate between a depth of six inches below the splash down pool operating water level and two inches above the water surface.(8) The construction dimensions and the mechanical attachment of the flume components shall be such that the surface of the flume is smooth and continuous for its entire length.(9) Each flume shall have a distinctive line or marking to indicate the starting zone in which only one rider at a time is permitted. This line shall be in accordance with the manufacturer's specifications or 30 feet, whichever is the longer distance. A sign shall be posted at the top of the slide warning all sliders not to proceed down the slide until the slider in front has passed this line.