[Crystal-clear]

Using basically 2 microbore reels both 6m.
Recently the flow rate on maximum was pretty bad it feels like perhaps 30 or 40 on the digital switch. I am used to working with around 80.

At first I thought it was the battery it wasn't as I swapped the battery from another van same flow.. I tested both reels swapped things around it's not quite the usual flow..

However this only seem to have started once the weather turns cold which was possibly about a week or so ago.

Is there anything to do with with the cold calibration or the pumps not working well in cold weather... I have a feeling that something to do with the hose reels 6 ml or calibration?

that said last year I wasn't having this flow problem...

I think tomorrow I'm going to time how long it takes to fill 5l directly from the pump and I'm going to test it out on 8m which I have some spare
I'm guessing it's going to run better.
Still don't understand why they have gone crap 

I think I've had these pumps for many years do they ever need opening up cleaning or something replacing? I've not replaced these for at least 5 years does that matter some people say their pumps have lasted 15 years?
This only seems to have started during the cold
Advice really appreciated!

I've been at this so long I should really know a bit more but DIY always seems to get the better of me...

Any suggestions thanks in advance

[dazmond]

you wouldnt get the problem if your water was hot(lower viscosity)i always used to have to turn my pump up high in cold weather when i used a cold system...

now with hot water its gushing out of my brush on 40-45 all year round.....

[dazmond]

id defo set your calibration higher and see if that helps.....

[Shrek]

It’s happened to mine too , I use 8mm , flow on 85. It has gone slower but tbh I have just calibrated once and not really given it much thought after that. It’s just what happens when it gets cold I suppose! 🥶

[Crystal-clear]

Ok cheers. Like I said it seems to be just started in the winter nothing to do with changing the pumps maybe they're old and dont like the cold anymore lol?.
 I will try to re calibrate but also will test it out with the 8m tomorrow if the flow is good I might go with that though the winter..
To calibrate it I know how to set it how many mins do you run it say at 80? Then press the enter button again..?

[Shrek]

I saved a video but can’t find it 😩 . It’s the recalibration video on YouTube from the guy on here who makes the flow controllers . I’m sure someone will put a link up  🤞

[Shrek]

https://youtu.be/SkN1eA-2vcc

[Spruce]

Using basically 2 microbore reels both 6m.
Recently the flow rate on maximum was pretty bad it feels like perhaps 30 or 40 on the digital switch. I am used to working with around 80.

At first I thought it was the battery it wasn't as I swapped the battery from another van same flow.. I tested both reels swapped things around it's not quite the usual flow..

However this only seem to have started once the weather turns cold which was possibly about a week or so ago.

Is there anything to do with with the cold calibration or the pumps not working well in cold weather... I have a feeling that something to do with the hose reels 6 ml or calibration?

that said last year I wasn't having this flow problem...

I think tomorrow I'm going to time how long it takes to fill 5l directly from the pump and I'm going to test it out on 8m which I have some spare
I'm guessing it's going to run better.
Still don't understand why they have gone crap 

I think I've had these pumps for many years do they ever need opening up cleaning or something replacing? I've not replaced these for at least 5 years does that matter some people say their pumps have lasted 15 years?
This only seems to have started during the cold
Advice really appreciated!

I've been at this so long I should really know a bit more but DIY always seems to get the better of me...

Any suggestions thanks in advance

Microbore hose is generally stiffer than minibore and will be much less flexible with cold water. When the hose is warmer it will expand fractionally under pressure. I notice that my controller virtually dead ends the pump the moment I operate my Univalve. In the summer with warmer water it takes long to dead end.

Microbore has 1/2 the carrying capacity of minibore so you will notice a difference in flow. I have always had minibore on the van. This past year I was persuaded to use microbore so replaced the minibore on one of the reels with microbore.
Using the same pump, battery and controller the microbore is definitely much more sluggish atm. It wasn't as noticable when the water was warmer.

Infact, I have gone back to the minibore hose reel as the minibore is easier to handle and works better for me.

There is this misconception that the flow of water will be the same in both hose diameters as the flow in the smaller diamt hose will be much faster.  But this isn't the case as the water rushing faster through the microbore creates turbulence which actually restricts the flow. 

The other thing to bear in mind is that battery performance reduces in cold weather. A battery at just above freezing looses around 25% of its 'driving' power as it becomes less efficient when cold. We haven't had temps drop that low yet, but we have already had to scrape the windscreen 3 times this year and its only mid November. (The windscreen has be frozen 4 times but the sun did its job once.)

Have a look at this thread from 2.5 years ago;
http://www.cleanitup.co.uk/smf/index.php?topic=206988.msg1834274#msg1834274

one of the links doesn't work any longer but I did comment on the facts quoted.

[Crystal-clear]

Using basically 2 microbore reels both 6m.
Recently the flow rate on maximum was pretty bad it feels like perhaps 30 or 40 on the digital switch. I am used to working with around 80.

At first I thought it was the battery it wasn't as I swapped the battery from another van same flow.. I tested both reels swapped things around it's not quite the usual flow..

However this only seem to have started once the weather turns cold which was possibly about a week or so ago.

Is there anything to do with with the cold calibration or the pumps not working well in cold weather... I have a feeling that something to do with the hose reels 6 ml or calibration?

that said last year I wasn't having this flow problem...

I think tomorrow I'm going to time how long it takes to fill 5l directly from the pump and I'm going to test it out on 8m which I have some spare
I'm guessing it's going to run better.
Still don't understand why they have gone crap 

I think I've had these pumps for many years do they ever need opening up cleaning or something replacing? I've not replaced these for at least 5 years does that matter some people say their pumps have lasted 15 years?
This only seems to have started during the cold
Advice really appreciated!

I've been at this so long I should really know a bit more but DIY always seems to get the better of me...

Any suggestions thanks in advance

Microbore hose is generally stiffer than minibore and will be much less flexible with cold water. When the hose is warmer it will expand fractionally under pressure. I notice that my controller virtually dead ends the pump the moment I operate my Univalve. In the summer with warmer water it takes long to dead end.

Microbore has 1/2 the carrying capacity of minibore so you will notice a difference in flow. I have always had minibore on the van. This past year I was persuaded to use microbore so replaced the minibore on one of the reels with microbore.
Using the same pump, battery and controller the microbore is definitely much more sluggish atm. It wasn't as noticable when the water was warmer.

Infact, I have gone back to the minibore hose reel as the minibore is easier to handle and works better for me.

There is this misconception that the flow of water will be the same in both hose diameters as the flow in the smaller diamt hose will be much faster.  But this isn't the case as the water rushing faster through the microbore creates turbulence which actually restricts the flow. 

The other thing to bear in mind is that battery performance reduces in cold weather. A battery at just above freezing looses around 25% of its 'driving' power as it becomes less efficient when cold. We haven't had temps drop that low yet, but we have already had to scrape the windscreen 3 times this year and its only mid November. (The windscreen has be frozen 4 times but the sun did its job once.)

Thank you.
So what I done was I swapped the battery out from the other van which I know is a fully good working battery and it holds charge forever with the relay. To eliminate any possible battery issue the flow was exactly the same I looked at the wiring they all seemed fine and the connectors are ok.
So I really think it's something to do with the cold and the 6mm hose and maybe be given the fact like you say the battery a good battery reduces by 25% plus the hose being not very good restricting flow together during the winter  you can have a weaker flow? Unless there is an element of the pumps being old.

I'm going to plug the 8 mm tomorrow and see what's going to happen probably will solve my problem and I would just pack away the 6 ml till spring because these last couple of weeks havnt been as fun rining for ages slowing me down.

[Spruce]

Using basically 2 microbore reels both 6m.
Recently the flow rate on maximum was pretty bad it feels like perhaps 30 or 40 on the digital switch. I am used to working with around 80.

At first I thought it was the battery it wasn't as I swapped the battery from another van same flow.. I tested both reels swapped things around it's not quite the usual flow..

However this only seem to have started once the weather turns cold which was possibly about a week or so ago.

Is there anything to do with with the cold calibration or the pumps not working well in cold weather... I have a feeling that something to do with the hose reels 6 ml or calibration?

that said last year I wasn't having this flow problem...

I think tomorrow I'm going to time how long it takes to fill 5l directly from the pump and I'm going to test it out on 8m which I have some spare
I'm guessing it's going to run better.
Still don't understand why they have gone crap 

I think I've had these pumps for many years do they ever need opening up cleaning or something replacing? I've not replaced these for at least 5 years does that matter some people say their pumps have lasted 15 years?
This only seems to have started during the cold
Advice really appreciated!

I've been at this so long I should really know a bit more but DIY always seems to get the better of me...

Any suggestions thanks in advance

Microbore hose is generally stiffer than minibore and will be much less flexible with cold water. When the hose is warmer it will expand fractionally under pressure. I notice that my controller virtually dead ends the pump the moment I operate my Univalve. In the summer with warmer water it takes long to dead end.

Microbore has 1/2 the carrying capacity of minibore so you will notice a difference in flow. I have always had minibore on the van. This past year I was persuaded to use microbore so replaced the minibore on one of the reels with microbore.
Using the same pump, battery and controller the microbore is definitely much more sluggish atm. It wasn't as noticable when the water was warmer.

Infact, I have gone back to the minibore hose reel as the minibore is easier to handle and works better for me.

There is this misconception that the flow of water will be the same in both hose diameters as the flow in the smaller diamt hose will be much faster.  But this isn't the case as the water rushing faster through the microbore creates turbulence which actually restricts the flow. 

The other thing to bear in mind is that battery performance reduces in cold weather. A battery at just above freezing looses around 25% of its 'driving' power as it becomes less efficient when cold. We haven't had temps drop that low yet, but we have already had to scrape the windscreen 3 times this year and its only mid November. (The windscreen has be frozen 4 times but the sun did its job once.)

Thank you.
So what I done was I swapped the battery out from the other van which I know is a fully good working battery and it holds charge forever with the relay. To eliminate any possible battery issue the flow was exactly the same I looked at the wiring they all seemed fine and the connectors are ok.
So I really think it's something to do with the cold and the 6mm hose and maybe be given the fact like you say the battery a good battery reduces by 25% plus the hose being not very good restricting flow together during the winter  you can have a weaker flow? Unless there is an element of the pumps being old.

I'm going to plug the 8 mm tomorrow and see what's going to happen probably will solve my problem and I would just pack away the 6 ml till spring because these last couple of weeks havnt been as fun rining for ages slowing me down.

Have a look at this thread from 2.5 years ago;
http://www.cleanitup.co.uk/smf/index.php?topic=206988.msg1834274#msg1834274

one of the links doesn't work any longer but I did comment on the facts quoted.

Have a look further into the thread toward the end. Ian Sheppard from Spring has added some excellent points including a link to water dynamics within the wfp environment.

[P @ F]

Same for me even with hot , and don’t talk about batteries to me , the Numax that I had as starter and system battery was recently changed to just a starter battery , that failed me today
So far this month I have replaced both car batteries, the system battery and today the van battery  nice little £320 bill 

[P @ F]

Not to worry the hot systems will be ready very very soon so I can make a bit of wonga through them  !

[Stoots]

I have one reel  6mm and one 8mm. They have  both slowed however the 8mm is faster.

But.... The 8mm hose has become a pig to work with in the cold, stiffer a d kinks up much more.

I prefer 6mm overall, flow isn't a problem as I don't use a controller anyway.

[NWH]

The thing is a hit system will almost eliminate this is you turn your system on and run the water at 25 for 15-20 minutes,the trouble is even if it’s set on minimum heat setting it will almost always be to hot to work with first thing in the morning in cold weather,sometimes what I do is run it back to tank and get the reel hot and then turn the heater off for the first couple of jobs.
You can be forever playing around with the calibration if your not hot,you can tell when the hose is under pressure as sometimes the resin vessel rattled under the strain.