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UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: LWC Ltd on May 20, 2008, 05:41:35 pm

Title: One or two pumps?
Post by: LWC Ltd on May 20, 2008, 05:41:35 pm
Until recently I've been running one pole through DI straight off the tap pressure and a backpack when needed.

I didn't have the kind of work to justify getting a full system.

Anyway now I want to put a van mount system in for two guys to use.

My question is...

Should I get a 60PSI pump for each hose reel or is just one  100 PSI pump OK to run two 100m hoses?

Also - Do I need a Varistream controller or is there another cheaper way of adjusting flow control?

Thanks!
Title: Re: One or two pumps?
Post by: alanwilson on May 20, 2008, 09:55:59 pm
100psi is just the pressure the switch is set to stop the pump at - it has nothing to do with flow rate.  you can run 2 poles off a 40psi pump if you want as long as the flow rate is high enough (7ltr/min minimum) but honestly a pump for each pole is the only way to go - much mopre control, better flow, more reliable and you don't suddenly get twice the flow when the other person shuts their pole off.
Title: Re: One or two pumps?
Post by: alanwilson on May 20, 2008, 09:56:57 pm
as for flow control I would recommend the varistream, others on here use valves and all sorts to control flow but we've always felt the varistream is the best.
Title: Re: One or two pumps?
Post by: NWH on May 20, 2008, 10:10:32 pm
2 of everything.
Title: Re: One or two pumps?
Post by: Andrew McCann on May 20, 2008, 10:15:11 pm
Quote from: alanwilson on May 20, 2008, 09:55:59 pm
100psi is just the pressure the switch is set to stop the pump at - it has nothing to do with flow rate.  you can run 2 poles off a 40psi pump if you want as long as the flow rate is high enough (7ltr/min minimum) but honestly a pump for each pole is the only way to go - much mopre control, better flow, more reliable and you don't suddenly get twice the flow when the other person shuts their pole off.

Great advice Alan.

Also with using 2 pumps they will be ticking over rather than working full out. Pump life will be maxed out and a breakdown far less likely.

With 1 pump you are far more likely to get it failing and then there will be two people earning nothing until a replacement can be obtained. In all probability at least 2 days work lost. Also if you did get a problem with 1 pump you could quickly cobble together to work two from it temporarilly so minimum loss of earnings.

Regards
Andrew
Title: Re: One or two pumps?
Post by: LWC Ltd on June 01, 2008, 09:43:36 pm
Thanks for the advice guys. I got two pumps in the end.