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Motorhome Facts :: View topic - How to replace the submersible/in-tank water pump ?

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931857 Post Posted: Tue Oct 19, 2010 9:57 pm Thank this member for this postReply with quote Back To Top

dealgan Subscriber 21/02/2013 


Joined: Jun 26, 2006

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MH: Knaus Sun Traveller 650LG-RM

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OK, Maybe I am missing something here.

I am looking for a pump to replace this one.
I assumed I could simply buy a replacement & it would have the same physical fitting (the red threaded piece) that would screw into the hole in the tank.

Is that right, or do I have to buy a pump and then modify it to suit my tank ? I hope not. That seems crazy.

I still havent found one that looks the same, and I've gone through hundreds of images from google.
 
931962 Post Posted: Wed Oct 20, 2010 8:43 am Thank this member for this postReply with quote Back To Top

JeanLuc  


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Given that Knaus is a German manufacturer, there is a likelihood that they fitted a Reich pump originally. Something like the one in this link:
<< Reich slim-line pump >>

The red connector is not part of the pump and should be re-sealed in place on the tank; you should use a sealing compound to seat it. I think the white plastic pipe linking the red connector to the pump in your picture is a DIY job. Have a look at the picture in the link below to see how this type of pump is fitted.
<< Pump installation >>

Philip
 
932052 Post Posted: Wed Oct 20, 2010 10:22 am Thank this member for this postReply with quote Back To Top

drcotts Subscriber 08/09/2012 


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you could install an new non submersible pump into the pipework under a cupborard if you have room and a suitable 12v supply. thats what I dd in my autocruise when the submersible pump went. took about an hour.

Phill

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Just when i found out my dad was right I had a son that thought I was wrong.....Henry winkler.
 
932064 Post Posted: Wed Oct 20, 2010 10:36 am Thank this member for this postReply with quote Back To Top

dealgan Subscriber 21/02/2013 


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Hmmm, interesting.

I dont like the look of the hose clamps in the fresh water in that pic Shocked , even though we usually dont drink that water.

I guess I have 2 choices ... make up a similar assembly with a new submersible pump, or use an external pump.

Any idea how I figure out the flow rate I need ?

How about this one ?
http://www.leisureshopdirect.com/caravan/water/product_33832/Shurflo_Trail_King_Pump_-_10ltr_30psi_%2812volt%29.aspx
 
932356 Post Posted: Wed Oct 20, 2010 7:24 pm Thank this member for this postReply with quote Back To Top

dealgan Subscriber 21/02/2013 


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Update: Ordered a new reich submersible today.

Will have to fit the right-angle hose fitting to it, somehow, but shouldnt be too difficult.
 
947701 Post Posted: Sat Nov 13, 2010 10:10 pm Thank this member for this postReply with quote Back To Top

dealgan Subscriber 21/02/2013 


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Update :

The new reich pump ( Thanks for the pointer JeanLuc ) was a little different physically, so needed a bit of DIY cutting & glueing to end up with a similar setup.
(Surprised at this, thought Knaus would use an off-the-shelf part)

It is now fitted & works perfectly. I was a bit worried the pressure/flow may be different, but it seems identical, thankfully.

Problem solved Smile
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