[james51174]

Hi guys please help

After over 10 years I needed to replace the pump on my system

The new pump was different to the old one and when switched on, the flow kept dropping down and raising

When I looked at the display it was hitting a DE momentarily before resuming flow, which was causing my sporadic flow problem

So after some google searching I realised the flow controller needed to be calibrated

I dug out the instructions for the v11 controller and followed them in order to auto calibrate

This seems to have only half worked though!

I like to run my pumps system at 40 on the display for the flow of water that suits me. But on occasion I have the need to run two hoses from the same pump, requiring me to raise the flow to around 80. But now I have auto calibrated the v11 it won’t let me. If I increase to flow I get the same DE problem cutting in and out!

Have I done something wrong?

Is my flow controller knackered?

Or do I need to manually calibrate?

If I do need to manually calibrate, how do I do this? The instructions are unclear to me

Thanks in advance

[Spruce]

Hi guys please help

After over 10 years I needed to replace the pump on my system

The new pump was different to the old one and when switched on, the flow kept dropping down and raising

When I looked at the display it was hitting a DE momentarily before resuming flow, which was causing my sporadic flow problem

So after some google searching I realised the flow controller needed to be calibrated

I dug out the instructions for the v11 controller and followed them in order to auto calibrate

This seems to have only half worked though!

I like to run my pumps system at 40 on the display for the flow of water that suits me. But on occasion I have the need to run two hoses from the same pump, requiring me to raise the flow to around 80. But now I have auto calibrated the v11 it won’t let me. If I increase to flow I get the same DE problem cutting in and out!

Have I done something wrong?

Is my flow controller knackered?

Or do I need to manually calibrate?

If I do need to manually calibrate, how do I do this? The instructions are unclear to me

Thanks in advance

First of all your controller isn't designed to run 2 pumps. If you do then your calibration needs to be set higher. This will impact on DE when one of the poles' tap or both taps are switched off.
This is not good for the pump or hose fittings and puts extra strain on the battery

You could try auto recalibrating the system with both poles on and your flow set to 80. When you are finished and return to using a single pole then you will need to recalibrate to the slower flow setting.
But I still don't see running one pole at 80 when the other is switched off is going to work.

Best solution is to buy a second controller and pump and run it for the other operator.

Both my Shurflo pumps on my van are 13 and 14 years old respectively.

[james51174]

Thanks for your reply spruce

I was being vague I guess

I have two pumps and two controllers

But when I run out of water during the day I fill up at a customers house whilst working if they permit me to.
The inlet on my tank is directly above the outlet that feeds one of my pumps. This effects the flow and I can’t work using that pump

To overcome this both myself and my colleague turn up the flow and share the other pump until I have enough water to carry on. We have been doing this for over 10 years with no problem.  We’ve always been able to run the pumps at 30 (which is pretty slow tbh) right up to 80 (Too fast for one user but perfect for the odd time there are two users), or even 99 if pumping out my system without any problems. But now with the new pumps and after auto calibrating, I can’t seem to go much higher than 30-40.

When we run two poles and one user closes his tap the other pole flows much faster but still no problems as it usually only momentarily that the tap is closed

Now I have two vans, both with two pumps and controllers in each. I didn’t fit or set either of them up but all four pumps have run perfectly no matter how high or low I have the flow set to. My guess is that who ever set up the systems didn’t use auto calibration? Maybe they did it manually and set it much higher?

If so, how do I do this? I know how to auto calibrate but the instructions don’t show me the steps to manually calibrate. I have bad learning difficulties and struggle with processing important instruction so I’m probably not understanding them properly

So considering up until now I have been able to run my pumps right up to 99 without DE kicking in, were  both my systems originally set up incorrectly? Is it really bad for them to be able to do this?

[Simon Trapani]

You know how to auto calibrate so do that again first with the pole extended up a bit also. To manual calibrate hold up & enter buttons at same time on controller to go back into calibration mode. Knock it up a few more so it’s less sensitive. Down makes it more sensitive.

Do you run off a leisure battery & is it kept in good condition?

And check all your connections. Any dodgy ones might become worse under load I would guess.

[james51174]

Thanks for your help 🙂

I’m slow with these things so please let me know what to do as I’m so confused

The options are...

A- manually calibrate higher to make it less sensitive

Or

B- auto calibrate With water flowing using my longest two poles fully extended during the set up.

I need my  poles extended  for correct auto calibration right?

Which option is best, A or B?

(B )I can do.

(A) I may need help with, so this is what I know so far...

1 - set flow to 30  With pole set up and water flowing out of my longest pole fully extended

2 - press up and enter together to start calibration mode

3 - press down until display is on 0 which starts auto calibration

4 - wait until system calibrates and press enter to set

So that’s the auto calibration set up. At step 2 instead of bringing it down to 0, do I raise it up instead to manually adjust?

[james51174]

Yes I use a leisure battery 🙂

Not sure it a power problem as this only happened when I changed to pumps

[Simon Trapani]

Flow rate to what you normally use not necessarily 30.

Pole extended up a section or two due to pressure.

Flow should always be on when calibrating.

Auto cal as you have, then yes go back in by holding up & enter & manually up it by say 4 or 5 & save.

Bit of trial and error really without seeing it.

[james51174]

Thank you Simon 🙂

I usually use a 25ft pole and this needs to be up one or two sections during calibration

So it’s not necessary to go through this process with my 47ft pole fully extended?

[Simon Trapani]

No