ROWPU EXAMe QUESTIONS ANSWERED CORRECTLY LATEST UPDATE

ROWPU EXAM QUESTIONS ANSWERED CORRECTLY LATEST UPDATE How many persons set up as a ROWPU 1500? - Answers 2 What hose connection point on a Rowpu has a 1.5" connection? - Answers Product water Which pump will also function as a back wash pump? - Answers Raw water pump 2 How much polymer will be used in a pail with 3 gallons of water? - Answers 125 ml How much sodium hexametaphosphate will be used in a pail with 3 gallons of water? - Answers 80 ml What type power source connection must be used to? - Answers One 200 amp 3 phase connection Before starting the ROWPU how many drain valves need to be closed on the 1500? - Answers 7 Before starting the rowpu how many vent valves need to be closed on the 1500? - Answers 12 During initial start up what raw water flow do you want to establish? - Answers 45-52 gpm Before start up, what position should the chemical feed valves be in? - Answers Prime What is the goal turbidity you want to achieve? - Answers Less than 2 NTU What is the maximum RO pressure allowed for freshwater? - Answers 550 psi What is the allowable bag filter differential pressure? - Answers 0-20 psid What is the minimum TDS rejection rate? - Answers 96.5% How long does a full back wash cycle last? - Answers 12 minutes (8 for back wash) (4 for rinse) During a backwash, what is the maximum water flow? - Answers 50 GPM How often should I citric acid feed be done? - Answers After 20 hours of operation How much citric acid is mixed with 3 gallons of water in a pail? - Answers 1 1/2 pounds What RO element cleaning method removes dirt and silt? - Answers High pH During an RO element cleaning with cleaner A, what 2 things must be monitored? - Answers pH level and temprature How long will an RO element cleaning cycle last? - Answers 55 minutes How many in NBC tanks are included with the ROWPU? - Answers 4 Which cartridge of the deionizing cartridges does the water go through first? - Answers Chemical When would you replace the deionizing cartridges? - Answers After a 100 hours from when the seal is broken After a using fresh water source, what should be done to the ROWPU prior to long term storage? - Answers Flush it out for 10 minutes with non-chlorinated product water If salt water has been run through the ROWPU 1500, what first must be done prior to long term shut down? - Answers Flush the system for 30 minutes with non-chlorinated product water The water entering the multi media filter during normal operation as what type of water? - Answers Brine water