R25 Bilge pumps

[rick&sue]

I'm a newbe R25 (early 2007) owner and am trying to figure out the bilge pump arrangement. This boat has one Rule 1100GPH pump in the sump under the drive shaft with a float switch. It has 4 additional shallow sumps (two are under the black water tank) aft of the shaft that have drain tubes in them allowing the water to eventually end up in the sump under the shaft. I'm not comfortable with one small pump. I can't find any other pumps or discharge holes. It appears that the Rule 2000GPH pump is too big in diameter to fit in the bottom of the shaft sump.I would sure be interested in finding out what other older model R25's have for bilge pumps. Thanks!!

 

[DBBRanger]

My 2008 R25 (Hull # 58) has two bilge pumps - one under the shaft in the aft part of the bilge and one in the forward part of the bilge under the front of the engine. The latter one pumps to the starboard side and the previous one to the starboard stern. I think this is the standard design.

 

[rick&sue]

Thanks for the reply. a few more questions: When I look forward under the shaft towards the engine, I see a tube that is draining the bilge from the bow. If I pour water into the bow at the forward thruster, the water comes through the tube and into the bilge under the drive shaft. I can't find any bilge pump forward of the engine. Can you tell me exactly where your forward pump is located and how you gain access to it? Or is there two pumps in the same bilge under the drive shaft? Do you recall the GPH capacity of the pumps? Are they operated by two separate float switches? The switch on the DC panel only turns on the one pump. Sorry for all the questions - I'm a slow learner..... :roll:

 

[Kenny Marrs]

Hello Rick and Sue,

The newer models have two bilge pumps, both in the engine compartment. One is under the drive shaft (just like your boat) and the other is just in front of the engine. The earlier models only came with one bilge pump but it did have a higher GPH than we are using now. On the R-27 and R-25sc we are using two Johnson 750 GPH bilge pumps and on the R-29 and R-31 we are using two 1000 GPH bilge pumps. Each pump has it's own float switch as well as a manual switch at the DC panel.

Thanks,
-Kenny

 

[bbrh842]

My 2007 R-25 came from the factory with only one bilge pump. I had to add the second pump below the front of the engine along with the associated wiring, switches, thru-hull, fuse, etc. About 5 seconds after they made my boat, they started installing the second pump.

 

[joempo]

Rick and Sue,
Our 2007 R-25 (hull #15) also has only one bilge pump and, so far, it has been adequate. I would also like to eventually install a second pump below the front on the engine, including an alarm since water deep enough to trigger that pump would be of concern.
Perhaps bbrh842 could give us the step-by-step of that modification.
Joe

 

[rick&sue]

Thanks everyone for the responses. It helped me figure out what I have and what I need to do. I'm going to try to install two 1100GPH pumps with individual float switches in the bilge below the drive shaft. I have 14 long X 2-1/2 inches wide space; its going to be a challenge, but I like redundancy. I pulled the black water tank (installing a Airhead) so I'll use the macerator outlet as the second bilge pump outlet. This is a great forum - thanks again.

 

[joempo]

Rick and Sue,
Just a thought - will the macerator outlet work, considering it is below the waterline? I know you could install a one-way valve, but i'm wondering if the associated pressure of the external water be overcome by the pressure of the bilge pump.
Joe

 

[rick&sue]

Hi Joe,
The macerator outlet on this boat is about the same distance above the waterline as the bilge outlet located in aft starboard corner. I will loop the discharge hose above the outlet, same as the original bilge discharge. Hopefully, this will work? It seems the bilge pump manufacturers don't like using check valves in the discharge lines as they are prone to failure.
Rick