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Flow controller

Bobby Halton

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Oryte lads quick question..I currently have a shurflo pump connected to leisure battery..no flow controller..I just hook battery up pull out pole..quick pull on pole hose to univalve and pump fires up water is out..pull again to stop and pump shuts off.. do I need a digital flow controller in van aswell? Just had my pump leak into pressure switch and corroded the connectors..is this anything to do with not having a flow controller? Thanks in advance

 
without controller pump will run full speed thats all. controller u can set the speed save water get voltage reading and protect battery if it goes too low charge. leak to me sounds seperate issue.

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I've adjusted the pumps flow with a little screw at the top of pump with an Allen key..that's why I haven't bought a flow controller as of yet..the leak I think is due to a broken seal..picking up a new pump tomorrow morning..just wondering whether to buy a flow controller after xmas period but like I said as I adjusted the flow with Allen key I thought I may not need one..thanks for replies

 
I've adjusted the pumps flow with a little screw at the top of pump with an Allen key..that's why I haven't bought a flow controller as of yet..the leak I think is due to a broken seal..picking up a new pump tomorrow morning..just wondering whether to buy a flow controller after xmas period but like I said as I adjusted the flow with Allen key I thought I may not need one..thanks for replies
That little screw is to adjust the pressure switch isn't it?

 
The little screw you are adjusting alters the pressure the pump switches off at rather than the flow rate. The higher the pressure that the pump switches off at, the quicker the pressure switch is likely to fail as higher electrical currents are involved, so arching in the switch will be greater.

The object of the controller is not only to give you control over the speed of flow but also to calculate the lowest pressure your pump needs to provide for you to work at therefore reducing the stress on the pump. These pumps are pretty tough, but the addition of a controller can significantly extend their life.

Some might say that the cost of the controller is as much as a new pump so isn't worth it, but that is for you to decide as it does give you control over rate of flow as well.

 
Fantastic bit of advice thanks mate..just trying to register it..I've got the screw to a point where the pump is continuously running as if I unscrew a thread more it's more pulsating and making a bit of a racket which doesn't sound healthy..think I need to invest in a flow controller after Xmas and hopefully prolong the pump life

 
No worries mate the guy who sold me the system is getting me a new pump tomorrow..the one he sold to me was couple year old..need to get myself a digital flow controller aswell I think..cheers mikey

 
Sounds like you have manually found the correct operating pressure for your setup. Once it starts pulsating the operating pressure is too low.
Brill so if I install a flow controller this can vary the speed as it is a touch to high but like I say if I turn it any lower it starts to pulsate?

 
Brill so if I install a flow controller this can vary the speed as it is a touch to high but like I say if I turn it any lower it starts to pulsate?
It's the low pressure setting that's causing it to pulsate when you slacken the screw you've been adjusting. Slowing the motor down to decrease the flow with a controller won't affect the pressure setting on the motor.

 
Sounds like you have manually found the correct operating pressure for your setup. Once it starts pulsating the operating pressure is too low.
Brill so if I install a flow controller this can vary the speed as it is a touch to high but like I say if I turn it any lower it starts to pulsate?

It's the low pressure setting that's causing it to pulsate when you slacken the screw you've been adjusting. Slowing the motor down to decrease the flow with a controller won't affect the pressure setting on the motor.
Flow controller is what I need then thanks for your reply pal

 
Brill so if I install a flow controller this can vary the speed as it is a touch to high but like I say if I turn it any lower it starts to pulsate?
Flow controller is what I need then thanks for your reply pal
No problem Bobby. Glad to help. If you have any problems setting it up, just post on here. There's plenty of us windies using them who will give you help

 
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