1) Where do you get the water from a direct cold water system? a) the wc b) the cwsc c) the mains d) the grey water tank 2) True or false a direct cold water system has good pressure at all draw off points? a) false b) true 3) How many drain off valves would you need? a) 1 b) 2 c) 3 d) 5 4) What pipes size would you use? a) 8mm b) 15mm c) 22mm d) 10mm 5) Can a direct cold water system feed a hot water storage tank ? a) no b) yes 6) What is the disadvantage? a) good pressure b) no storage tank c) if mains is turned off you are with out water  7) What category is portable water ? a) 5 b) 3 c) 8 d) 1 8) What are the 2 times of the day the water pressure could be lowered? a) 6:30-8:30 am b) 9-10:20 am c) 5-7 pm d) 9-11pm

level 2 plumbing direct cold water systems

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