[Smurf]

Sorry I was responding to M&C I think? Who knows as It's been a long day 

[M & C Window Cleaning]

You don't get that issue on digi spring type contollers I use so can't say what varistream are like as never used one.
Going by the other link you posted your using a pf trolley with a spring digi controller the same as mine. I would diduce that you're not bleeding all air out of the system when the containers run dry and/or change them over as is sucking in air so the controller will not work as it should unless you do so.

Hi Smurf. It's me with the trolley. The problem isn't caused by air in the system. I do get that with the trolley from time to time and it just causes weak sputtery flow and is easily fixed by disconnecting the hose at the trolley for few seconds until it reprimes itself and you get a solid flow.
According to Ian Shepherd it's how the controller is designed. And I never had the issue with the analogue version. When shutting off the flow with a long length of mini or microbore connected, say 100 mtr, the pump pressurises the hose and it expands. When turning your tap back on the hose squeezes the water it is holding out first while the controller continues through it's cycle and switches on. So it gives the appearance of switching on immediately when in fact it isn't. That is not a problem for a system that always pushes it's water through long lengths of hose before it gets to the brush. However, I like to work with a short length of PU pole hose which doesn't share the stretchy quality of mini or microbore. So when I shut off my water flow, there's next to no expansion in my hose, so the delay caused by the controller cycle is quite noticeable. However, all that said, I'm now using the univalve coupled with fan jets in my brushes and am finding I'm using a lot less water. So I'm not so concerned with shutting off the water every few seconds now

[Spruce]

You don't get that issue on digi spring type contollers I use so can't say what varistream are like as never used one.
Going by the other link you posted your using a pf trolley with a spring digi controller the same as mine. I would diduce that you're not bleeding all air out of the system when the containers run dry and/or change them over as is sucking in air so the controller will not work as it should unless you do so.

Hi Smurf. It's me with the trolley. The problem isn't caused by air in the system. I do get that with the trolley from time to time and it just causes weak sputtery flow and is easily fixed by disconnecting the hose at the trolley for few seconds until it reprimes itself and you get a solid flow.
According to Ian Shepherd it's how the controller is designed. And I never had the issue with the analogue version. When shutting off the flow with a long length of mini or microbore connected, say 100 mtr, the pump pressurises the hose and it expands. When turning your tap back on the hose squeezes the water it is holding out first while the controller continues through it's cycle and switches on. So it gives the appearance of switching on immediately when in fact it isn't. That is not a problem for a system that always pushes it's water through long lengths of hose before it gets to the brush. However, I like to work with a short length of PU pole hose which doesn't share the stretchy quality of mini or microbore. So when I shut off my water flow, there's next to no expansion in my hose, so the delay caused by the controller cycle is quite noticeable. However, all that said, I'm now using the univalve coupled with fan jets in my brushes and am finding I'm using a lot less water. So I'm not so concerned with shutting off the water every few seconds now

If you catch the very beginning of that cycle, the 4 second delay can seem like a lifetime.

We even notice it with 100 meters of minibore, more so in the winter when the water in cold and the hose stiffer.

We are still using the Mk1 version of the digital Varistream controller. I have noticed recently that the calibration values aren't the same. A Varistream is preset at the factory to calibration C for a Shurflo 5 liter pump. Its now 'wandered' off to 7 which is way down the scale. 

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[Smurf]

Like I've said before I've never really noticed any delay at all. That is using both 100 m minibore and/or just a short run of wfp hose connected directly to my old pf trolley. That's even using hot or cold it still don't make any difference.  I tend to set the water flow quite high so like you say when turned off the pressure builds up depending on de settings how high and when turned back on again. Yes granted the flow is stronger to start with but still there seems no 3-4 second delay when the water starts to flow again or that would do my head in.

Mind you I don't keep turning the water on and off like some crazed posest univalve pole tuggers 

[M & C Window Cleaning]

I still have my analogue controller. The battery in my trolley normally lasts about a year so when that's up I may put the analogue one back on.

[Marc Stock]

Personally chaps (and this is just my opinion before i get abuse) i have never really seen the benefits of using an electronic flow controller.

Right from the beginning I have used a tap on the end of my hose and just let the pump pressure switch regulate the hose pressure.

If i want a small amount of water i let the tap out slowly, as the pressure drops the water flows and the pump comes on.

When I shut off the tap the hose pressure builds to 100psi and shuts of. Advantage to this is hose doesn't kink as its under pressure, i have  INSTANT water and of i want to blast off some bird muck i can quickly open the tap and get a 100Psi blast  (sorry 50psi blast as there are two jets)

Always thought an electronic pump controller was a solution to a problem that never existed...just my opinion.

[M & C Window Cleaning]

Mind you I don't keep turning the water on and off like some crazed posest univalve pole tuggers

 

[JSMC]

Controller changed over. Guess what same problem lol. Must be pump that is fecked. Pumps for few seconds then just loses pressure n builds back up again.

[JSMC]

New pump on now and pumping again. Some issues with dead end on pure freedom analogue controller. According to manual dead end setting should sit between 12-2 o'clock on dial. Mines has to be turned back to 0 to stop flow.

Also yet to see red led for pressure switch turn on. This is turning into a headache. Never ever had any issues with pump controller really over the years.