Hmmm, pays to engage brain first .... if a plunger type pump didnt have a non
return
valve I guess it wouldnt be a pump!
SO, reading your question again Graham, I assume you were asking DOES the Facet
block reverse flow?
I cannot categorically say but I am 99.9% sure it does. If it didnt, I dont know
how it could pump. Judging by the noise it makes notwithstanding being solid
state, I can only assume the noise is made by the valves opening and closing.
Cheers
Kingsley
Sent from my iPhone
> On 15 Jan 2019, at 10:49 am, Kingsley Hurst <kingsnjan@westnet.com.au> wrote:
>
>
> Hello Graham,
>
> Not exactly sure what you mean by reverse flow but whether or not it has a non
return valve I dont know sorry.
>
> K
>
> Sent from my iPhone
>
>> On 14 Jan 2019, at 8:57 pm, Gaham Singleton <grahamsingleton@btinternet.com>
wrote:
>>
>> Cant remember Kingsley, is the Facet block reverse flow?
>> G
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