Which submersible pump to choose?

[The Lobster]

Whilst up in the Highlands this weekend my water pump stopped working on my A570 Burstner (six berth 55 plate). It just blows fuses now The fitted unit has no markings but looks more like a cylinder than the ones I see on line (see photo). We have a large water tank and the usual onboard shower/two sinks/hot water heater.

What flow rate should I go for? I'm thinking something mid-sized like a 15 l/min rate 0.5 bar pressure.
I found a Reich F306 here that looks like it would be OK - it mentions "automatic vent" and I can't see a non-return valve on it - so perhaps it isn't OK?
I'd like to consider a twin pump for redundancy like this one at 19 l/min 1.4 bar which also includes a NRV - but will I be likely to run into problems with my piping or Truma water heater with the higher pressure it generates?

Any recommendations for a replacement item? Thanks.

 

[Stealaway]

Direct replacement - if it's available - will be the optimum choice

 

[The Lobster]

Direct replacement - if it's available - will be the optimum choice

But it has no markings?

 

[ivorantony]

Shurflow diaphragm pump, they work very well and can tolerate running dry for quite awhile
( not recommended) but does happen, just replaced mine after 13 years, it developed a slight leak and was cheaper to replace than to repair,

 

[autorouter]

You could look at a Comet inline/submersible pump. There's various flow rates - a 15 and a 19 l/min for example. That bit right at the end of the pipe looks like a non-return valve to me. You could check by blowing through it.

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[The Lobster]

You could look at a Comet inline/submersible pump. There's various flow rates - a 15 and a 19 l/min for example. That bit right at the end of the pipe looks like a non-return valve to me. You could check by blowing through it.

Thanks - will do. I'm coming to the conclusion that the unmarked original is a Whale of some sort.

 

[The Lobster]

Happy ending: I got a whale replacement. It was very easy to fit. Turned out the old one was a high flow whale. Despite replacing it with an ordinary one, it works fine. The flow is perfectly fast enough - in fact much smoother (less splashing and spitting, as you might expect), and the pump quieter in operation

 

[buntyb]

Happy ending: I got a whale replacement. It was very easy to fit. Turned out the old one was a high flow whale. Despite replacing it with an ordinary one, it works fine. The flow is perfectly fast enough - in fact much smoother (less splashing and spitting, as you might expect), and the pump quieter in operation

Get a spare as well. If you carry one, you’ll never need it

 

[Lenny HB]

Happy ending: I got a whale replacement. It was very easy to fit. Turned out the old one was a high flow whale. Despite replacing it with an ordinary one, it works fine. The flow is perfectly fast enough - in fact much smoother (less splashing and spitting, as you might expect), and the pump quieter in operation

Must have been replaced before I'm Fairly certian the standard fit would have been the Reich tandam pump.
I replaced the Reich in my Hymer with a Shureflo pressure switched pump, I got fed up with the microswitches in the taps failing.