T&T: AC raw water pump flow rate?

[Steve Sipe]

Keith wrote:
> Two 16,000 BTU units. Using your math, the current pump should be more than 
> adequate. I may valve the manifold though, so I can balance the flow. The 
> water comes out pretty warm (hot) in the summer; that's why I was asking 
> about the larger pump capacity. Thanks!
>
>   
It's going to pick up in the vicinity of a 20 deg. rise, if they're both 
the same size, check the discharge temps if they're separate. That'll 
tell you more. You can also check head pressure on the condensers. I'd 
be very reluctant to add a valve, just another potential service 
problem. Less is more. If you want to do anything, acid clean the 
seawater condensing circuit on the units. Depending on conditions, you 
can get some accumulation of varying degrees on the insides of the 
exchangers, a good cleaning would provide the best benefit for the time 
invested.

S