The bildge in mine is pretty narrow and deep so the largest pump I can easily fit is a Rule 800 that is square. It fills the footprint of the well. There isn't a good place for the switch except for almost directly above the pump. It is a flipper style.
2 years ago I replaced the original (to me) Rule 800 with a Rule 500 w/rulematic controller and also kept the float/flipper switch. I also rewired everything. Frustrating though was that the new SUBMERSIBLE Rule 500 pump did not have tinned wires! And the gauge was less than desired at about 18awg. I read a lot about solder not being acceptable but don't trust crimps as much as solder. I used my best Electronic Technician's training from the Navy to solder all the pump's leads and used adhesive lined heat shrink to seal the connections. I also think I used 14awg. The flipper switch is wired so that even with the OFF-1-ALL-2 switch in OFF the flipper will still actuate the pump. The on/off switch for the pump is on the switch panel and wired such that ON actuate the rulematic sensor which will run the pump until no more water is in the bildge. It automatically senses that it is doing less work (less current) and then shuts off. After 2 minutes it "tests" by starting for a moment and measuring the current draw. If the pump is "doing work" (more current) then it runs until the water is gone and the cycle starts over again. So ON is really AUTO. Unfortunately I have found the pump running non-stop in ON so I have never really used the "auto" feature. I attempted to correct the back flow problem with a large check valve placed very close to the pump discharge. It still isn't perfect so I just turn it on and then turn it off while I'm there and let the float do it's job while I'm gone. This means that the pump stays submerged for a large majority of it's life because the flipper is mounted above the pump. I have considered using 2 pumps. The gusher 320 for getting to the deepest part of the bildge. And a larger 1000 or 1500gph Rule mounted above the sensor for the gusher. During normal operation the gusher would run in auto using a new level switch and keep the larger pump from becoming submerged. If something were to cause an increase in the water level then the larger pump would actuate and prevent floading/sinking. Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD On Mar 23, 2015 1:45 AM, "David Blair via CnC-List" <cnc-list@cnc-list.com> wrote: > I find that since there is a lift of a few feet to the discharge level the > integral switch causes the pump to spend its time (and my electrical > energy) pumping the same litre or so of water up the discharge hose, > waiting for it to trickle back, repumping it again, and so on. Inserting a > backflow preventer slows the process somewhat but not entirely. Other than > plumbing the discharge into the galley drain so the outflow is minimized I > am not sure how to stop the constant recycling. The integral switch doesn't > seem to have any option for adjustment and I am don't see how a separate > switch would be any different unless it was placed higher than the pump. > My boat (34+) has a small collection area - maybe a litre of water in the > bilge. The only source of outside water is rain down the mast, so this is > a periodic problem. Any solutions or suggestions? > > > > *From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of *Jake > Brodersen via CnC-List > *Sent:* Sunday, March 22, 2015 6:27 PM > *To:* sam.c.sal...@gmail.com; cnc-list@cnc-list.com > *Subject:* Re: Stus-List 37+ Bilge pump > > > > Sam, > > > > The integral switches are "interesting". Most of them spin the pump > impeller at regular intervals. If they encounter resistance, they continue > to run the pump until less resistance is encountered. There is nothing > wrong with this approach, unless you can hear the pump from your bunk. I > prefer pumps to be actuated by a switch than senses a need for the pump to > run. > > > > Jake > > > > > > *Jake Brodersen* > > *"Midnight Mistress"* > > *C&C 35 Mk-III* > > *Hampton VA* > > > > > > > > *From:* sam.c.sal...@gmail.com [mailto:sam.c.sal...@gmail.com > <sam.c.sal...@gmail.com>] > *Sent:* Sunday, March 22, 2015 7:11 PM > *To:* cnc-list@cnc-list.com > *Subject:* Re: Stus-List 37+ Bilge pump > > > > What about those solid state switches that are integral with the pump. > > Anyone have any experience with these? > > > > I've got a Whale pump like this, but haven't got around to installing it > yet. > > > > sam :-) > > C&C 26 Liquorice > > Ghost Lake Alberta > > > > *From: *Jake Brodersen via CnC-List > > *Sent: *Sunday, March 22, 2015 3:51 PM > > *To: *'Josh Muckley'; cnc-list@cnc-list.com > > *Reply To: *Jake Brodersen > > *Subject: *Re: Stus-List 37+ Bilge pump > > > > Josh, > > > > The wiring is certainly suspect at this point in the boat's age. I prefer > to mount the pump low in the bilge because most of them push water better > than pulling it uphill. Putting it another way, they blow better than they > suck... > > > > You're still going to have the bilge switch in the bilge, why not locate > them together? Mine are side-by-side, which makes for shorter wiring runs. > > > > Jake > > > > *Jake Brodersen* > > *"Midnight Mistress"* > > *C&C 35 Mk-III* > > *Hampton VA* > > > > > > > > *From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com > <cnc-list-boun...@cnc-list.com>] *On Behalf Of *Josh Muckley via CnC-List > *Sent:* Sunday, March 22, 2015 5:31 PM > *To:* C&C List > *Subject:* Stus-List 37+ Bildge pump > > > > The bildge pump seems to have stopped working, again! I suspect that it > has to do with some of the older wiring becoming corroded and causing a > higher resistance. I had this happen before. I'm planning on replacing > the Rule 500 with a Whale Gulper 320. I recognize that the capacity is > probably on the low side but compared to zero, 320 is a lot and it beats a > bucket. The gusher is a single diaphragm pump, can pass debris and has a > rated suction lift of 10'. So this means I can mount the pump above the > water and have the suction hose run into the deepest and most confined > space of the bildge. Hopefully getting the pump out of the water will help > prevent corrosion. > > Anybody have any thoughts or personal learnings? > > Josh Muckley > S/V Sea Hawk > 1989 C&C 37+ > Solomons, MD > > > > _______________________________________________ > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go to the > bottom of page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > >
_______________________________________________ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
