Posted for randy snarr <randylsnarr@yahoo.com>:

 Lorn,
 Thanks for the reply.
 The strange thing is that my high and low side
 pressures rise at the same rate. If the high side was
 leaking to the low then the pump would burp and take
 the high back to it's normal 1300 psi mark and the low
 side would be the only one creeping up. In my case,
 the low and the high creep and at about the same rate.
 The high may end up around 17 or 1800 psi from 1300
 and the low is about the same increase- 4 0r 500 psi
 from 0.
 
 Randy..