Non return valve

[Cottonlung]

Hi all.

Where is the best place to put the non return valve? I presume closer to the tank than the pump?.. also should the hose from tank to pump be as short and low as possible? 

Cheers 

 

[AGlassAct]

Shorter the better, same principle as electrics. Saying that mines like spaghetti junction!!!! And yes to the non return valve, as long as it’s the first thing in the system it’ll be fine.


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[Iron Giant]

I don't get why you would want to fit a non-return valve after the tank outlet or do you only have a elbow on the outlet if so better to replace that altogether with https://purefreedom.co.uk/?s=tank+outlet+fitting+

 

[Cottonlung]

I don't get why you would want to fit a non-return valve after the tank outlet or do you only have a elbow on the outlet if so better to replace that altogether with https://purefreedom.co.uk/?s=tank+outlet+fitting+

No, I have a tap fitted but constantly get airlock after driving around which is always in the hose from tank to pump.. hence either feed pipe is too long or something else is a miss

 

[AGlassAct]

Turn the pump off between jobs - that helped mine. Plus make sure pump is as low as you can as I’ve found they are easier to prime if you do get a lock


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