[encantotom]

jeff,  

here is a picture of the install i just finished putting a new mach5 headhunter in the 99 that i have and getting ready to sell.

the inlet coming from the bottom of the water tank is 1" going to the pump.

on my 99 the outlet is a 1" plastic fitting converted to 3/4" pex.    on my 02 it is 1" outlet as well.  

there is a single 12v pump on both of mine and i replace it with a higher flow sureflo on the 99.  

there is a checkvalve between the outlet of the headhunter and the outlet of the 12v pump to prevent the headhunter from forcing water back into the 12v pump

tom