I have a cistern with a WellAce shallow well jet pump in my basement.

http://www.waterace.com/well_3.html

Between the input/output end and the motor end, it has started dripping
water underneath. There are four bolts holding these two parts
together. I contacted the mfr and they said there's a replacement seal
kit I can buy as the seal probably just wore out. We just moved in a
few weeks ago and the house had been largely vacant for a while, so I
think the seal probably dried out and new usage caused it to start
leaking.

The mfr said to separate the two sections to install the seal. My
question is this...

Will the pump lose it's prime? If so, what will I need to do to
reprime it after the repair? The instruction manual has info on
filling the pump with a garden hose, but I don't think that's easily
possible, now, as the system is PVC'd together.

Thanks in advance,

Ryan