Thanks Francois. Power draw is also a concern. The 4.4A rated amp draw for the Par-Max 2.9 makes it desirable. I was concerned with flow rate proving enough pressure for the head/shower and galley. But to be honest, I don’t expect the shower and the galley faucets will be used simultaneously.
So I just looked online regarding shower flow rates. It turns out that the Federal Energy Policy Act of 1992 required all faucet and shower fixtures made for the USA to have a flow rate of no more than 2.2 GPM at 60 PSI. So I guess that the 2.9 should provide a home-like shower stream. - Paul E. 1981 C&C 38 Landfall S/V Johanna Rose Carrabelle, FL > On Oct 7, 2015, at 9:48 AM, Jean-Francois J Rivard <jfriv...@us.ibm.com> > wrote: > > Hi Paul, > > Between the two I'd go with the 2.9 based on the combination of flow / PSI / > Amps. The 2.9 needs a 10 amps circuit / breaker while the 3.5 needs a 15 amp > circuit. > > Your boat most likely has the 10 amp breaker, you'd have to at least change > the breaker / possibly upgrade the wiring as well. Also, if you are counting > amps while on the hook, the higher capacity pump will take a deeper cut into > your batteries. > > That is also why I decided to rebuild / stick with the original model 500736 > pump on my boat. It's a little noisy but it's built like a truck, easy to > rebuild, and makes 3.0 GPM / 40 PSI on a 8 amp circuit / breaker. > > > -Francois Rivard > 1990 34+ "Take Five" > lake Lanier, GA > > > Hi, > > I am in the process of upgrading the fresh water plumbing on my boat. The > old fresh water pump was removed long before I obtain this project. I am > currently deciding between two pumps: a Jabsco Par-Max 2.9gal/min 50psi > (31395-0092) and a Jabsco Par-Max 3.5gal/min 40psi (32600-0092). The > Par-Max 3.5 cost about 50% more. I want to favor the Par-Max 2.9 to > conserve water but I am interested to hear what other think about the 2.9 > gal/min flow being enough? > > Thanks for anyones input. > > - > Paul E. > 1981 C&C 38 Landfall > S/V Johanna Rose > Carrabelle, FL > Regards > François Rivard 4111 Northside Pkwy, Nw > <Mail Attachment.gif> > Big Data Black Belt Atlanta, 30327-3015 > IBM Sales & Distribution, Software Sales Usa > Mobile: 770-639-0429 > e-mail: jfriv...@us.ibm.com > > > >
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