[davids3511]

i like your system matt what happens when the pressure builds up on the shurflo ? does it just shut down ? i have managed to fix one of our old pumps me and mark had and i mite use that in the same way as you. if i have two pumps on the go will i have to have two outlets of the tank or would a simple t piece work from the one outlet?

Pumps have a built in pressure switch, it turns the pump off anyway when you reach that pressure. So you're installing something that you already have in the system, whats the pojnt of that?

Ive had 3 people come in this week whos pressure switches on their pump have gone due to cold, Ive by passed it and got them running, because they have one of our digi flow controllers, so instantly saved cost of a new pump, happy days.

Didn't it save the the price of a new pressure switch, not a new pump?

[nokmond]

Hope you realise shurflo pressure switches are £1.69 from maplin and not buying the full bottom end of the pump for £25+

[richard jagger]

No nerve touched... Your obviously a little simple and do not understand costings... Are you charging £ 2.50 for a 0ap's  bunglow? No I guess a little more due to the fact that a business needs to make a profit.
You are so right a business must make a profit and at the same time value for money.
I am not simple and have a sound understanding of business costing I would not be surprised if I started my first business before you were born. Not all window cleaner are undereducated  there are some smart cookies among us. I think you underestimate intelligence of this industry . I have been in business for over 40 years and hold a B Com. degree from the the University of Stellenbosh. In business management so costing is like petty cash to me. It might help to remember who your customer are. Attact is not the best line of defence in business.

[Dave Willis]

I'm confused, why do some controllers use the pumps pressure switch whilst others don't?

[Spruce]

I'm confused, why do some controllers use the pumps pressure switch whilst others don't?

Because it's cheaper to make a controller that still utilises the pump's cutoff switch. The controller just reduces the speed at which the motor turns so the pump delivers less water but once you dead end the water flow the pump's pressure switch will cut the pump at what it is set at - say 95psi.

Other controllers that are more expensive do away with the operation of the pressure switch and allow you to regulate the flow and pressure that suits you electronically - hence less wear and tear on the pump, fittings etc. The pump in my son's van is 5 years old and the pump in my van is nearly 7 years old - both Shurflo pumps with Varistream controllers.

I once put a water pressure gauge on the pump on my van to see out of interest where I had set it to my requirements - It was around 55 psi.

Spruce

[Craig Trevain]

No nerve touched... Your obviously a little simple and do not understand costings... Are you charging £ 2.50 for a 0ap's  bunglow? No I guess a little more due to the fact that a business needs to make a profit.
You are so right a business must make a profit and at the same time value for money.
I am not simple and have a sound understanding of business costing I would not be surprised if I started my first business before you were born. Not all window cleaner are undereducated  there are some smart cookies among us. I think you underestimate intelligence of this industry . I have been in business for over 40 years and hold a B Com. degree from the the University of Stellenbosh. In business management so costing is like petty cash to me. It might help to remember who your customer are. Attact is not the best line of defence in business.

I'm not suggesting window cleaners are, I've been in the cleaning industry since I left school at 16 in 1988, so who would I be to judge, what I am judging is your attitude towards my products...

80% of my company is our cleaning company where I can test our equipment , the other 20% of my company is my cleaning and janitorial supply company, where I can confidently Market these products... Of which our trade counter and web site has many happy customers.

And most view our prices as cost effective.

[Craig Trevain]

All so if CT( east )Ltd. ( Polarbrite) is that much of a rip off, why have we grown as a compAny year after year since 2000, I guess this is because we are competitive .

[rosskesava]

ding ding..... round 2

[LWC]

What the heck are they going on about 

[Ian Sheppard]

I'm confused, why do some controllers use the pumps pressure switch whilst others don't?

Because it's cheaper to make a controller that still utilises the pump's cutoff switch. The controller just reduces the speed at which the motor turns so the pump delivers less water but once you dead end the water flow the pump's pressure switch will cut the pump at what it is set at - say 95psi.

Other controllers that are more expensive do away with the operation of the pressure switch and allow you to regulate the flow and pressure that suits you electronically - hence less wear and tear on the pump, fittings etc. The pump in my son's van is 5 years old and the pump in my van is nearly 7 years old - both Shurflo pumps with Varistream controllers.

I once put a water pressure gauge on the pump on my van to see out of interest where I had set it to my requirements - It was around 55 psi.

Spruce

Some good points here. That show how using a purpose designed control can give years of service, I have come across some of our early analogues that are going strong after 5 - 6 and 7 years. These units perform a basic funtion very much as described by spruce EG they slow the pump down reducing wear and tear and water use.

As our understanding of how a WFP systems works, in particular pressure when in DE.
We made an engineering decision to design a controller that would run with a pressure switch. It took a lot of time and coding of the processor to achieve this, The cheap option for us would have been not to include this in the design.

We found that disconnecting the pump pressure switch could lead to high pressure build up while in DE. 
With some controllers the pressure will just continue to build up with nothing to stop it.

Left in this DE situation with no pump pressure switch, can mean that hoses connectors will blow or hoses split.
It is also creating a lot of strain on the motor as the pressure has to go somewhere, This can lead to the pump turning - and dumping water somewhere.

By taking the technical route of designing in the pump pressure switch, The pressure switch becomes helps protect the whole system, as the pressure will never get so high that it blows something or dumps water in your van through leaks.

It was important to us that the controller was able to protect the whole system, this is an area we continue to develop. This is one of the differences between our and other controls.

[Deangsi]

alot of willy waving going on hear lol thought this was about controlers

[Deangsi]

thankyou guys with the constructive comments 

[Dave Willis]

I'm confused, why do some controllers use the pumps pressure switch whilst others don't?

Because it's cheaper to make a controller that still utilises the pump's cutoff switch. The controller just reduces the speed at which the motor turns so the pump delivers less water but once you dead end the water flow the pump's pressure switch will cut the pump at what it is set at - say 95psi.

Other controllers that are more expensive do away with the operation of the pressure switch and allow you to regulate the flow and pressure that suits you electronically - hence less wear and tear on the pump, fittings etc. The pump in my son's van is 5 years old and the pump in my van is nearly 7 years old - both Shurflo pumps with Varistream controllers.

I once put a water pressure gauge on the pump on my van to see out of interest where I had set it to my requirements - It was around 55 psi.

Spruce

Some good points here. That show how using a purpose designed control can give years of service, I have come across some of our early analogues that are going strong after 5 - 6 and 7 years. These units perform a basic funtion very much as described by spruce EG they slow the pump down reducing wear and tear and water use.

As our understanding of how a WFP systems works, in particular pressure when in DE.
We made an engineering decision to design a controller that would run with a pressure switch. It took a lot of time and coding of the processor to achieve this, The cheap option for us would have been not to include this in the design.

We found that disconnecting the pump pressure switch could lead to high pressure build up while in DE. 
With some controllers the pressure will just continue to build up with nothing to stop it.

Left in this DE situation with no pump pressure switch, can mean that hoses connectors will blow or hoses split.
It is also creating a lot of strain on the motor as the pressure has to go somewhere, This can lead to the pump turning - and dumping water somewhere.

By taking the technical route of designing in the pump pressure switch, The pressure switch becomes helps protect the whole system, as the pressure will never get so high that it blows something or dumps water in your van through leaks.

It was important to us that the controller was able to protect the whole system, this is an area we continue to develop. This is one of the differences between our and other controls.

Interesting reply. I have a Varistream that's been giving me no end of trouble especially with too much pressure. I have just fitted a brand new pump and although it's disconnected I know when the Varistream is about to dead end because I can hear the pressure switch click. Most odd.