The height of any opening under the bottom of the enclosure shall not exceed _______ inches. {Ans: 4}The 911 phone should be located ________ the pool. {Ans: inside}Pools shall have at least one unit of lifesaving equipment present. A unit of lifesaving equipment shall include: {Ans: A pole A throwing rope}T/F If the CPO cannot inspect the pool, he must provide an alternate operator that day. {Ans: True}______ units of lifesaving equipment must be provided for any pool which exceeds_______ square feet of surface area. {Ans: Two and 3000}T/F It is okay if depth marking is not visible to patrons. {Ans: False}