T&T: AC raw water pump flow rate?

[Keith]

Well, my AC raw water pump went out. It's a March AC-5C-MD, rated at 16.5 
GPM. The water flow has always been adequate, barely. I was wondering if I 
could upgrade to their 5.5 series, which is a 30 GPM flowrate, without 
blowing my water circuit all to hell? The pump has a 1"  input and 1/2" 
output. The output is split to two air conditioners, each with 1/2" tubing.


Keith
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If rabbit's feet are so lucky, what happened to the rabbit?