[Ian101]

Got a twin man 650ltr set up with twin pumps and leisure battery that origianally ran the 2 pumps.

Flow control also built in charger for the leisure battery as Im driving.

System has been all good for when just me but with 2 of us the lesiure battery hasnt been able to keep up unless engine running which is not ideal as if it gets nicked no insurance payout.

Last night rewired it so my pump works off leisure battery and pump 2 works direct from van battery but still kept the charging circuit as well.

Hopefully all done correctly will see during day  

[Spruce]

Something must be wrong with the leisure battery or cables. My van has a 110amp leisure and we have no problem when both of us work off the van with both pumps going.

[Tom White]

Something must be wrong with the leisure battery or cables. My van has a 110amp leisure and we have no problem when both of us work off the van with both pumps going.

Agreed.

[Spruce]

You may be tempted to use the vehicle body/chassis as a return for your system. It doesn't work. You need to have both positive and negative cables from your leisure battery. You can use I single positive cable from the battery and then split it to feed both controllers, but you need positive and negative cables to each pump.

If you aren't using controllers then each pump is going to draw about 6 - 8 amps. x2 is going to hammer any battery.

[Tom White]

Ian, what flow controller do you use?  I did use both a variflow and a cleaning warehouse one powered by a 115 amh battery.  What used to happen is that the variflow one used to cut out mid afternoon but the cleaning warehouse controller was fine.

I got a new battery and used both, one to power the cleantech controller/pump and another battery to power the variflow/pump and all worked fine.

Then I connected the variflow up wrong one morning which knackered my variflow controller (such a simple mistake, it kinda annoys me there's not an inbuilt safety device for these), so I binned the controller on this pump and reconnected the pressure switch and use it without a flow controller, which I prefer.  Wor Lass uses the pump with the cleaning warehouse flow controller.

And if you're still with me so far, I can run both off the original 115 amh battery all day without a problem.  My problem seemed to be the variflow controller; not my battery.

I don't like the variflow! 

[Ian101]

Ian, what flow controller do you use?  I did use both a variflow and a cleaning warehouse one powered by a 115 amh battery.  What used to happen is that the variflow one used to cut out mid afternoon but the cleaning warehouse controller was fine.

I got a new battery and used both, one to power the cleantech controller/pump and another battery to power the variflow/pump and all worked fine.

Then I connected the variflow up wrong one morning which knackered my variflow controller (such a simple mistake, it kinda annoys me there's not an inbuilt safety device for these), so I binned the controller on this pump and reconnected the pressure switch and use it without a flow controller, which I prefer.  Wor Lass uses the pump with the cleaning warehouse flow controller.

And if you're still with me so far, I can run both off the original 115 amh battery all day without a problem.  My problem seemed to be the variflow controller; not my battery.

I don't like the variflow! 

not very techy answer but orange ones digital readout came on system which is a cleaning warehouse one.