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Re-calibrating pumps in the cold
« on: December 08, 2010, 06:54:05 pm »
Anyone else found the need to recalibrate their pump and controller in this weather?

Dave Willis

Re: Re-calibrating pumps in the cold
« Reply #1 on: December 08, 2010, 06:59:40 pm »
Yep. Max flow now and up a notch on the pressure too.

♠Winp®oClean♠

  • Posts: 4085
Re: Re-calibrating pumps in the cold
« Reply #2 on: December 08, 2010, 07:21:09 pm »
I only have to put the cut off up one setting, the flow remains the same, on No-1. Digi' varistream.

rg1

  • Posts: 1356
Re: Re-calibrating pumps in the cold
« Reply #3 on: December 08, 2010, 07:26:01 pm »
Anyone else found the need to recalibrate their pump and controller in this weather?

No..why? ;D
The pen is mightier than the sword (and a lot easier to write with!)

Re: Re-calibrating pumps in the cold
« Reply #4 on: December 08, 2010, 07:29:36 pm »
Ive found both of my pumps and controllers have needed tweaking. Saying that Im slightly suspicious one of them needs a new pressure switch or valve assembly kit ( the dodgy one keeps cycling).

♠Winp®oClean♠

  • Posts: 4085
Re: Re-calibrating pumps in the cold
« Reply #5 on: December 08, 2010, 07:47:57 pm »
My theory is- with virtually no flex/expansion of parts & pipes in cold conditions, the pressure in the system is transferred back to the switch/electronic unit far quicker & thus reacts faster to pressure. ;)

Re: Re-calibrating pumps in the cold
« Reply #6 on: December 08, 2010, 07:50:22 pm »
So would that mean the cal setting would need to be lowered or raised?

♠Winp®oClean♠

  • Posts: 4085
Re: Re-calibrating pumps in the cold
« Reply #7 on: December 08, 2010, 07:53:15 pm »
So would that mean the cal setting would need to be lowered or raised?

Raised, as if my theory is right it cuts out too soon if you don't. ;)

Re: Re-calibrating pumps in the cold
« Reply #8 on: December 08, 2010, 07:54:58 pm »
Cheers. Ill see how the second pump deals with it tomorrow. Thanks.

Supreme clean window cleaning

  • Posts: 236
Re: Re-calibrating pumps in the cold
« Reply #9 on: December 08, 2010, 08:02:49 pm »
can some one tell me what they mean to recalerbrate pump i find on mine sometimes i go to use pole and its just dripping out and it on 4 (digi varstream) then i tern it up to 7 or 8 and it comes out like it is on 4 then after a cupple of windows it starts flying out so is that the problem if so how do you do it. thanks for any help matt

♠Winp®oClean♠

  • Posts: 4085
Re: Re-calibrating pumps in the cold
« Reply #10 on: December 08, 2010, 08:09:19 pm »
can some one tell me what they mean to recalerbrate pump i find on mine sometimes i go to use pole and its just dripping out and it on 4 (digi varstream) then i tern it up to 7 or 8 and it comes out like it is on 4 then after a cupple of windows it starts flying out so is that the problem if so how do you do it. thanks for any help matt

Do you use 6mm hose?

dmlservices

  • Posts: 981
Re: Re-calibrating pumps in the cold
« Reply #11 on: December 08, 2010, 08:49:52 pm »
used a shurflo 100 psi pump with an old type varistream for around 5 yrs now ,

always used to adjust blue dial in winter , as it would shut pump down sooner and there is a delay in water coming through when turning flow back on,

its down to the different temp. affecting my micro bore , it expands more in summer so pump takes longer to shut off , and water gushes out when you turn flow back on ,
on the same setting in winter the micro does not expand as much , so pump shuts of sooner, i don't bother to adjust it any more.

daz

Supreme clean window cleaning

  • Posts: 236
Re: Re-calibrating pumps in the cold
« Reply #12 on: December 08, 2010, 08:54:58 pm »
No I use 8 mil

Frankybadboy

  • Posts: 9022
Re: Re-calibrating pumps in the cold
« Reply #13 on: December 08, 2010, 09:00:37 pm »
yes always got to adjust mine. ;)

♠Winp®oClean♠

  • Posts: 4085
Re: Re-calibrating pumps in the cold
« Reply #14 on: December 08, 2010, 09:01:12 pm »
No I use 8 mil

And standard 1/2" from tank right up to reel?

Supreme clean window cleaning

  • Posts: 236
Re: Re-calibrating pumps in the cold
« Reply #15 on: December 08, 2010, 10:24:56 pm »
Yes same as do I need to calarbrate it how do you do it

♠Winp®oClean♠

  • Posts: 4085
Re: Re-calibrating pumps in the cold
« Reply #16 on: December 09, 2010, 12:01:51 am »
Yes same as do I need to calarbrate it how do you do it

Just to make it clear, recalibrating, I'm talking about setting the pressure cut off. As I explained above, because of the colder conditions & the effect it has on components in the system I have to higher the value by 1 notch & the odd time even 2. My digi' varistream cut off value is normally set to 6. In winter I have to up it to 7 or the pump intermittently cuts out & re starts.

However, I am at odds as to what is causing your inconsistent flow ???  Don't take this the wrong way but have you ever set the cut off value on your varistream? (mine didn't even come with instructions) ::)

Are you using standard size pole hose?  what jets?