After three frustrating years dealing with the factory ballast valve/switch combination in my 2005 SV211 I finally replaced the fill pumps with impeller pumps and eliminated the cable valves. Since I had already had to pull one of the rear tanks to access the platform bracket to install my Fresh Air Exhaust, I decided to go ahead and replace the aerator pumps with impeller pumps.
Last weekend I went out on the water for the first time with the new system and it worked flawlessly. Not a drop in the tanks after my slalom runs and no need to power to prime the fill pumps.
To make the change I pulled the fill pumps and attached 1" pump intake hoses directly to the brass inlet shutoff valves. I could have used 3/4 hose but the 1" fittings work better so I went ahead and upsized the hose to 1" for all of the fill lines. The three new impeller pumps are mounted to the top rail of the ski tow support crossmember inside the motor compartment. The new impellers are easily accessible for replacement when needed. The pumps make a bit more noise than the aerator pumps but it's just enough noise so you don't forget to turn them off. I often overfilled the center tank with the previous pumps, I run the center tank at 3/4 full when I am boarding.
It's a moderate job to make the change but not much harder than replacing the Flo-Rite valves with the TH Valves. I also moved the gauges down to where the valve controls were located so it's easier to see the level gauges now. The top portion of the control panel is now utilized for my audio interface panel. After seeing the mess of wires behind my factory SE fill/drain switches I decided to leave them alone. The new pumps are powered off relays triggered by the factory pump wiring. The impeller pumps pull significantly more power than the stock aerator pumps so the factory pump wires cannot be used.
This is one of the best modifications I have made to my boat. I highly recommend this modification to anybody that has cable valves on their boat.
Last weekend I went out on the water for the first time with the new system and it worked flawlessly. Not a drop in the tanks after my slalom runs and no need to power to prime the fill pumps.
To make the change I pulled the fill pumps and attached 1" pump intake hoses directly to the brass inlet shutoff valves. I could have used 3/4 hose but the 1" fittings work better so I went ahead and upsized the hose to 1" for all of the fill lines. The three new impeller pumps are mounted to the top rail of the ski tow support crossmember inside the motor compartment. The new impellers are easily accessible for replacement when needed. The pumps make a bit more noise than the aerator pumps but it's just enough noise so you don't forget to turn them off. I often overfilled the center tank with the previous pumps, I run the center tank at 3/4 full when I am boarding.
It's a moderate job to make the change but not much harder than replacing the Flo-Rite valves with the TH Valves. I also moved the gauges down to where the valve controls were located so it's easier to see the level gauges now. The top portion of the control panel is now utilized for my audio interface panel. After seeing the mess of wires behind my factory SE fill/drain switches I decided to leave them alone. The new pumps are powered off relays triggered by the factory pump wiring. The impeller pumps pull significantly more power than the stock aerator pumps so the factory pump wires cannot be used.
This is one of the best modifications I have made to my boat. I highly recommend this modification to anybody that has cable valves on their boat.
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