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<DIV><FONT size=2 face=Arial>Hi all, </FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>We have a customer that collects rainwater in two
large tanks and uses grid power to feed it uphill 80M out and 10M up - then
gravity feed it back to the house, which is located by the large collection
tanks. There is a float switch in the uphill tank to shut the grid pump
off, via a relay. Our grid power here is 230v ac. and the customer has
frequent power cuts.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>The customer has purchased an appropriate 12v
dc pump, battery and PV from us. However the customer still wants to have
the option of using grid with the reliability of dc pump backup.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>What we would like to do is utilize the existing
float switch for both pumps rather than them adding another float switch and 80M
of extra cable just for the dc pump.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Can anyone see an easy way to achieve this without
adding too much extra expense?</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>
thanks for any collective wisdom - John Veix -
N.Z.</FONT></DIV></BODY></HTML>