Add pump to Scamp shower drain. What do I need? - Fiberglass RV


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Old 06-15-2017, 05:00 PM   #1
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Add pump to Scamp shower drain. What do I need?

I think I need to add a pump to my Scamp shower drain. It's a '91 and has the garden hose that goes from the shower drain, through the frame, and into the greywater tank. However, it enters the greywater tank in such a low location on the tank that I get water in the shower any time I travel with even a small amount of water in the greywater tank. Are they all hooked on that low? What kind of pump do I need to pump the water into the tank and prevent backflow? I appreciate any feedback on this. Thanks!
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Old 06-15-2017, 05:46 PM   #2
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your problem could be as simple as installing the drain plug after you shower.

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Old 06-15-2017, 06:31 PM   #3
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I feel that the inlet to the gray water tank is so low that I don't get the capacity in the greywater tank like I should. I feel like it backs up in to the shower.
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Old 06-15-2017, 07:08 PM   #4
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The grey tank should be vented... water seeks its own level so the inlet should be irrelevant.
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Old 06-15-2017, 07:24 PM   #5
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Quote:
Originally Posted by Bryan L. View Post
I think I need to add a pump to my Scamp shower drain. It's a '91 and has the garden hose that goes from the shower drain, through the frame, and into the greywater tank. ...
When and why did Scamp start putting the shower pump in the camper as standard equipment (with the shower option)? I know that later models have the pump, apparently for exactly the reason you think you need one. If the design is basically the same and the pump serves a purpose then it sounds like a good plan. I never shower in mine so I am happy as long as gray water does not backup into the shower pan / floor.
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Old 06-15-2017, 07:32 PM   #6
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Is this a side bath Scamp?
Mine was before I modified it and moved the bath to the front with a dropped pan for more headroom.
Originally the shower in mine ran as you said from the drain in the floor to the lower drain and I have no experience with it.
I think you could add a pump like the later Scamps and I think that there is enough room for the pump under there it you wanted to add one.
The pump should have a filter ahead of it and it will act as a check valve to keep it from backing up to the shower pan.
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Old 06-15-2017, 08:47 PM   #7
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It is a side bath unit.

Part of the reason this happens is that I must have the incorrect drain on mine. Mine doesn't screw in. I attached a picture of what I have.

If this system is so great, why were pumps added to later models? What pump comes on the newer models? I would guess I need one that can run "dry" for short periods of time. I may not do this before our two-week National Parks in July but it's on my list of improvements. Heck, what's the proper drain? That is a project I could get done before the trip!
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Old 06-15-2017, 08:55 PM   #8
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The simple answer is that side bath has the floor of the shower level with the top of the 6" side which is roughly level with the top of the grey tank.
The drain will run into the grey tank but there is not a lot of the head for the trip.
The new versions have the drain below the top of the grey tank and the water will not drain back to the tank without the pump.
When I installed the bath I chose to have the pump capable of moving around the same as the delivery of the shower head.
This is why there is a valve in the drain line to keep the grey tank from draining into the pan.
The movement of the trailer might well run back to the floor if headed down hill.
in the side bath as well.
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Old 06-16-2017, 06:58 PM   #9
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16 Deluxe with Front Bath

We picked up our 16, with front bath, last month from the factory.

Perhaps the photos I have included will assist and give you some idea what Scamp uses today. (We have not used the shower to date preferring the RV Park facilities instead.)

From the shower drain we have an in-line filter which then goes into the pump. The pump switch is on the wall in the front bath.

Best of luck on your project
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Old 06-28-2017, 08:13 AM   #10
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Jeff,

Thanks for the pictures. That will help a lot when I get around to doing this. I start a two-week National Parks trip next week so I think it will have to wait until I get back. Thanks again.

Quote:
Originally Posted by Jeff T View Post
We picked up our 16, with front bath, last month from the factory.

Perhaps the photos I have included will assist and give you some idea what Scamp uses today. (We have not used the shower to date preferring the RV Park facilities instead.)

From the shower drain we have an in-line filter which then goes into the pump. The pump switch is on the wall in the front bath.

Best of luck on your project
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Old 06-28-2017, 10:53 AM   #11
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While mine is not a Scamp (Boler), and not a factory wetbath, after I built our wetbath I had issues with the shower not draining due to the drain hose having to go up hill to connect to our portable Barker gray water tank (the connection point at the gray tank was higher than the drain line under the camper on level ground). I also had issue with the water in the sink backing up into the shower as water seeks the path of least resistance and/or lowest point. My sink has a standard compact p-trap, shower didn't have a p trap but I ordered a Hepvo and installed it and now I have no water backups into the shower. The hepvo is a specially designed trap that uses a membrane that only allows water to flow in one direction. I was skeptical that it would slow the shower draining but it does not. The only issue I have now is if my gray tank should sit higher than the gray water drain line then it is slow draining into the tank so I am considering adding a pump just for that purpose, but as long as the gray tank is lower than my gray water drain line or we are connected to a sewer hookup everything drains fine. I added a PVC valve to the lowest point on my gray water tank so now the connection hose does not have to go up an over which greatly improved the draining into the tank. Just have to make sure the gray tank is level with or lower than the gray water drain line of the camper. A sewer connection could be a problem if it was elevated and my connection hose has to flex up higher than the gray water drain line.
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