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Jan 25, 2019 at 2:46 comment added Ed Beal I totally agree with what you are saying, if there is no addition to the tank the pump would not be running. This is the same as I was saying. The plc monitors the system and runs as needed, but running 24-7 something is wrong.
Jan 25, 2019 at 0:38 comment added davidgo @EdBeal I've been looking at this, and it appears the amount of cycling (or 24/7 operation) depends on the size of tank and number of people using it. A typical ("Jet") pump uses about 500 watts, so 1 unit of electricity every 2 hours - if its running 24/7 at 15c / unit thats a cost of $54 per month. I bet that when its not in use you could safely reduce this to 30 minutes every 2 hours, saving of over $40 per month.
Aug 25, 2017 at 19:03 comment added Ed Beal I have worked on systems that cycled so I don't think 24/7 is true for all.
Mar 7, 2017 at 17:27 review Late answers
Mar 8, 2017 at 0:17
Mar 7, 2017 at 17:12 history answered Adam Speer CC BY-SA 3.0