Shower sump pump


O

Our Place II

Member
Changed the diaphragm on the shower sump and the water flow from the shower is faster then the sump removes the water.
Can not remember if this is normal since we use the water on and off in the shower as we soap up.
The new diaphragm deffiently works better than before.
 
Yes it was defiantly sloooow! Tried a back wash, first one did not work. Was going to replace the pump but did a two person backwash. Clog of hair on a piece of silicone washer held in place with a sliver of plastic. Second person had to twist the pick up tube and pull the clot free.
 
All I can add is that my sump keeps up with everything....so for sure you have something going on. Best of luck!
 
Our Place II - How did you change the diaphragm on the pump? I'm assuming your set up is the same as mine with the pump remotely located in the engine room? My sump box is clean, the float switch is working and my pump is running - it's just not evacuating any water. If I stick my finger in the pipe that usually sucks out the water, I can feel the slightest amount of sucking, but no where near enough to move water. I was going to change the whole pump, but the pump actually sounds fine - so maybe it's just the diaphragm and a clog or something.....need to trouble shoot this one! Thanks for the help. Do you know the MODEL of the PUMP?
 
Here's a question..... what is the purpose of the diaphram pump ? why not have a regular bilge pump style pump mounted inside the sump ?
 
2006_31PC said:
Here's a question..... what is the purpose of the diaphram pump ? why not have a regular bilge pump style pump mounted inside the sump ?
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I think the idea is that because this sump box MIGHT have bits of food in it, the diaphragm pump does a better job of moving solids. Those solids MIGHT get trapped in a traditional bilge pump.

I am sure there are other reasons, but this is what jumps to me.
 
Toofast is right, a diaphragm pump will move solids, bits of food, hair, etc. while a centrifugal pump will not. Fishing line wrapped around your prop might be a good analogy. Any food would just plug up the strainer.
Over time the diaphragm will wear, there should also be some type of check valve to prevent back flow, you might check that too.
 
I realized last night there is no way I can fit over the Yanmar and hot water heater to access the pump on the starboard hull wall.....How is it possible to do this without being a contortionist? I will have to hire a very small person to do this.
 
if you have to hire someone to get tot he pump, I would just replace the whole thing and get it over with. You may replace the diaphragm and in a year have to replace the pump.
 
toofast said:
I think the idea is that because this sump box MIGHT have bits of food in it, the diaphragm pump does a better job of moving solids. Those solids MIGHT get trapped in a traditional bilge pump.

I am sure there are other reasons, but this is what jumps to me.
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Good point, I didn't think of that.
 
I would just hire the small person to relocate the pump for you to somewhere you can access it. This way you can service it yourself (now and in the future).

I just relocated my head filter for future servicing.
 
I had the same problem last year. My whale pump mounted in bilge was empting the water much slower than it had. I ordered a new diaphram for the pump, when I took the pump apart i found that the diaphram was in good shape. Here the black plastic disk that sits on the outside of the center of diapharam had cracked in half. I replaced it with a washer similar in size and is still working great. Also make sure the bottom of the pump and diapram are seated correctly.
 
Sooliman said:
I realized last night there is no way I can fit over the Yanmar and hot water heater to access the pump on the starboard hull wall.....How is it possible to do this without being a contortionist? I will have to hire a very small person to do this.
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vertically and gravitationally challenged people are in demandd at the marinas! I changed out that pump, the repair kit didnt do it. i think the new Gulper pump was around $200 nd i had it the next day from across the sound in Connecticut. mine is very accessable but it was still a PIA because its mounted into clips on the wall.
 
Try to take off the suction and outlet hose and blow through them, if there is something in the suction it will end up in the shower sump, and if there is something in the outlet hose you'll blow it overboard
 
Does anyone have a picture of the pump? Or is it pretty obvious on the starboard side of the engine compartment? I'm going to try to troubleshoot mine this weekend...
 
Mine clogged once, I took it apart and cleaned it put it back together and it worked. I always had problems with it priming but it wasn't an issue very often because it is always primed. I finally rebuilt it and it works much better. The rebuild kits are pretty cheap and it's easy to do. They have rubber feet so if I remember correctly you don't have to remove all of the screws to remove it. I don't have a pic but you can search Whale Gulper, it's black, there are 2 of them so make sure you get the right one.
 
Septana said:
Try to take off the suction and outlet hose and blow through them, if there is something in the suction it will end up in the shower sump, and if there is something in the outlet hose you'll blow it overboard
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This was it! Pump looked fine but but blew through the hoses, rehooked them and all is fine! Thanks for the help!
 
All, just a quick update - I purchased both the rebuild kit AND a new Whale Gulper 320 Pump. Figured I may as well replace the 11 year old pump with a new one and keep the old pump 'rebuilt' as a back-up. The 320 pump is definitely able to keep up with whatever comes its way - and with the new diaphragm the old pump is still functional as a back-up.
 
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