effluent pump [RE-wrenches]

[John Blittersdorf, Cent. VT Solar & Wind]

Kirk,
  I have a customer with an effluent pump and after much worry about power 
drain, we found that it ran for only about 7 minutes a week.  My customers 
are frugal with water use and I think their tank was 200 gallons.  We used a 
T240 transformer for the 240 pump and added a standard AC timer to turn the 
pump power on for 15 minutes once each day.  We had to wait quite awhile to 
see it work and the only time we had a problem with it was when spring thaw 
surface water got into the tank thru a poorly sealed cover and pumping was 
continuous.  15 min a day was not enough and the pump alarm went off.  If 
this had been an on-grid installation, the customer would have probably 
wondered why their electric bill spiked but would have had no real way of 
knowing that their pump was working overtime. 

John
CVSolar

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