I'm want to stress that the bifilar arrangeme nt:
(http://www.ionizationx.com/index.php?action=dlattach;topic=2480.0;attach=11426)
What happens is that the positive going into the dot will come out the dot on the other coil, so although the it seems the inductanc es are canceling each other giving a small inductanc e as result, what really happens is that it will apply to the water negative zone because the negative exciter will be charged negativel y relative to ground, when the pulse is off the polarity than reverses and the energy in the coils will collapse. ..generat ing a second pulse of now in the positive choke sending a second positive pulse and the negative choke a negative pulse...
Thats because the direction of the current was different at the coils and the coupling is not perfect..
There might be a diode pointing, from ground, to the point of the diode coming from the positive, this will allow the collapse of the coils to end up at the cell not on the switch...