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Reich submersible Twin water pump
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userkeninpalamos
Posted: 23 October 2021 10:43 AM
Subject: Reich submersible Twin water pump
 


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Posts: 789
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Location: Uffington. Hymer E700 AutoSleeper Montana pop top


Does anyone know if these units come without the one way valve fitted or is the valve removeable. I ask because I have a push fit connection that goes directly on the pump.
userTeamRienza
Posted: 23 October 2021 11:25 AM
Subject: RE: Reich submersible Twin water pump
 
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Posts: 213
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Location: Co Down. 2016 Hymer B598PL


They can be bought either with or without the non return valve. The valve is removable. A circlip can be pulled on the valve to allow the removal.

https://www.leisureshopdirect.com/water/caravan-water-pump/reich-pumps

Davy
userDerek Uzzell
Posted: 23 October 2021 11:54 AM
Subject: RE: Reich submersible Twin water pump
 


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Location: MODERATOR - 2015 Rapido 640F LHD 2.3ltr 150bhp


Are you sure thst's the case with the "Twin" pump, as there are online comments mentioning that the NRV cannot be removed from the version of the Twin that's marketed with a NRV already fitted?
userRobinhood
Posted: 23 October 2021 12:00 PM
Subject: RE: Reich submersible Twin water pump
 


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Location: Sherwood Forest


I carry a "Twin" with NRV as a spare. I was pretty sure the valve was permanently fixed, so I've just been and checked. It is permanently fixed (at least, there is no obvious non-destructive method of detaching it).
userkeninpalamos
Posted: 23 October 2021 1:27 PM
Subject: RE: Reich submersible Twin water pump
 


Pillar of the forums

Posts: 789
500100100252525
Location: Uffington. Hymer E700 AutoSleeper Montana pop top


Thanks guys. I think you are right about the valve being fixed. But I have found some on Amazon without the valve now.
userDerek Uzzell
Posted: 23 October 2021 2:24 PM
Subject: RE: Reich submersible Twin water pump
 


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Location: MODERATOR - 2015 Rapido 640F LHD 2.3ltr 150bhp


This 2009 MHFacts thread mentioned the NRV being glued to the outlet of the Reich pump (then called "Twinflow")

https://forums.motorhomefacts.com/49-tech-mech-chat/51159-water-pumps-non-return-valves-frost.html

I came across one advert for a 'without NRV' Twin pump and - although the photo was correct - the full description of the item stated that the pump had a NRV. So make absolutely sure you'll be.getting the right pump as the 'with NRV' version seems much more common.

userDerek Uzzell
Posted: 24 October 2021 8:45 AM
Subject: RE: Reich submersible Twin water pump
 


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Location: MODERATOR - 2015 Rapido 640F LHD 2.3ltr 150bhp


There’s more on the Reich “Twin” water-pump in this 2020 MHFun thread.

https://www.motorhomefun.co.uk/forum/threads/reich-twin-submersible-pump-again.227374/

Within the thead is a photo (copy attached below) showing a pump with the NRV separated from it, but the discussion includes comments saying that some Twin pumps marketed without the NRV have a different outlet (to take a push-fit connector) and some pumps marketed with the NRV have the valve glued solidly in place, or the valve may have been fitted very tightly and may come off if brutal methods are employed.

Similar performance Reich “Tandem” pumps are marketed without a NRV or with a NRV, though in the latter case the NRV is a removable add-on having a Reich UniQuick push-fit connector.

https://reich-web.com/en/products/water-pumps/power-immersion-pump-tandem



(pump.jpg)



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Attachments pump.jpg (189KB - 9 downloads)
userkeninpalamos
Posted: 24 October 2021 10:32 AM
Subject: RE: Reich submersible Twin water pump
 


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Posts: 789
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Location: Uffington. Hymer E700 AutoSleeper Montana pop top


As mentioned above I have now found the twin pump with a push fit connection on Amazon, (couldn't find one on ebay). I have a Reich Twin with the NRV as a spare for another vehicle (Hymer) but just purchased something else (caravan, please don't shout) and sods law says they can not have the same pump connection. I did try to remove the NRV from my spare pump but it wasn't going to shift without causing damage Thanks again for the info.
userTeamRienza
Posted: 24 October 2021 12:17 PM
Subject: RE: Reich submersible Twin water pump
 
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Location: Co Down. 2016 Hymer B598PL


Derek Uzzell - 2021-10-23 11:54 AM

Are you sure thst's the case with the "Twin" pump, as there are online comments mentioning that the NRV cannot be removed from the version of the Twin that's marketed with a NRV already fitted?


Yes I changed a 19 lt twin pump a year or so back and retained the valve. I also bought a spare and have just been out to check that my memory was not playing up. I can only assume there are two versions of the pump or that one is superseding the other.

Here is a link to the valve I have (can’t post photos). You can clearly see the circlips at each end.

https://www.grasshopperleisure.co.uk/reich-uniquick-non-return-valve---push-fit-1875-p.asp

Davy
userOcsid
Posted: 24 October 2021 1:26 PM
Subject: RE: Reich submersible Twin water pump
 
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Location: Hampshire


Apolgise if I am missing something but why would there be a "need" to remove any fitted NRV, even if the system has one already?

They can function piped in series, albeit each inflicting its bit of resistance.
userDerek Uzzell
Posted: 24 October 2021 3:41 PM
Subject: RE: Reich submersible Twin water pump
 


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Location: MODERATOR - 2015 Rapido 640F LHD 2.3ltr 150bhp


It depends...

More recent Reich pumps are marketed with an outlet that can accept a push-fit connector and - when a pump is sold with a NRV - the NRV is a Reich UniQuick product as shown on the attached image below.

My Rapido’s water system uses Uniquick connectors throughout and they connect as shown in this video.

https://www.youtube.com/watch?v=PEA3MpAFofw

As you’ve said, having two NRVs in series should not be problematical (though best avoided) but if the motorhome already has a ‘non-NRV’ Reich Twin pump and a separate NRV elsewhere, some extra work MAY be needed to connect up a ‘fixed NRV’ Twin pump.

As will be apparent from this Reich webpage, there are many UniQuick components.

https://reich-web.com/en/products/pipe-systems/piping-system-uniquick



(reich-twin-19-l-min-submersible-pump-with-valve.jpg)



Attachments
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Attachments reich-twin-19-l-min-submersible-pump-with-valve.jpg (24KB - 10 downloads)
userkeninpalamos
Posted: 27 October 2021 6:46 AM
Subject: RE: Reich submersible Twin water pump
 


Pillar of the forums

Posts: 789
500100100252525
Location: Uffington. Hymer E700 AutoSleeper Montana pop top


Have you seen any for sale with the push fit NRV with the step reduction on the output which is what my original pump was. Have you located any for sale in the UK Derek?
userDerek Uzzell
Posted: 27 October 2021 7:21 AM
Subject: RE: Reich submersible Twin water pump
 


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Location: MODERATOR - 2015 Rapido 640F LHD 2.3ltr 150bhp


The Reich website suggests that “Twin” pumps are no longer part of Reich’s product range, being superseded by a pair of similar specification pumps branded “Tandem”.

Tandem pumps are marketed in two forms - without a NRV (Reich Part Number: 515-1914121) or fitted with a UniQuick removable NRV (Reich Part number: 515-1914121R). These pumps have a smooth ‘unstepped’ outlet designed for a UniQuick connector (or any suitable 12mm push-fit connector).

https://reich-web.com/en/products/water-pumps/power-immersion-pump-tandem

The without-NRV Tandem pump is advertised here for £35.51 (shipping free)

https://www.strounoir.com/reich-5151914121-submersible-pump-p-123931.htm

but the strounoir.com website may be untrustworthy

https://www.scam-detector.com/validator/strounoir-com-review/

It’s also on Amazon.co.uk for £50.44

https://www.amazon.co.uk/Unknown-Reich-515-1914121-Submersible-Pump/dp/B002V9IGL8

though whether it’s actually deliverable is anybody’s guess.

(I’ll leave you to explore the rest of UK internet advertising.)
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