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 Hose diameter flow test

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Mike Sullivan

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Number of posts : 264
Age : 47
Location : Greensboro, NC
Job/hobbies : Professional exterior cleaning
Registration date : 2008-09-06

PostSubject: Hose diameter flow test   Tue Sep 23, 2008 5:14 pm

Here is my favorite post from Tim Aselton Softwashing from Tallahasee, FL.

I ran some tests last weekend on my pump with three different diameter hoses to see just what I could get at the end of 200'.

The tests were done to maximize my efficiency and not for starting up more "hose wars".

The pump pulled water from a supply tank and was attached to each line via a 3/4" x 4' supply hose coming directly out of the pump.

The pump open flowed 14 gpms and had a "static" pressure of 150psi.

Some hoses have different liners that flow with less resistance, but these hoses were all that I had.

The picture below shows what each hose "open flowed" (no nozzle) at 200'. I did test the flow/psi with different nozzles and the higher flowing lines produced more psi every time.

As you constrict the flow you generate the psi, more flow=more psi as long as you have good pressure output at the pump.

I made up a nice chart, but it got all messed up when I previewed it. Pumps are different, but the flow
capabilities of hoses are what they are. The longer you go the larger you need to get max out of it, the same is true with electricity.

I am in the fire service and this is all common to me since I drive and pump fire trucks (10yrs) when I'm not washing roofs and houses. When we need to go a good distance we lay the 5" lines.

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Spencer

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Number of posts : 152
Age : 42
Location : Tampa, FL
Job/hobbies : Pressure Washing, Carpet/Upholstery Cleaning, Maid/Janitorial Service
Registration date : 2008-09-06

PostSubject: Re: Hose diameter flow test   Tue Sep 23, 2008 5:56 pm

Makes sense to me.
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Apple Roof Cleaning Tampa
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Number of posts : 394
Age : 63
Location : Tampa Florida Area
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Registration date : 2008-08-27

PostSubject: Re: Hose diameter flow test   Tue Sep 23, 2008 8:49 pm

Yeah, Tim proved what I have been saying for YEARS, big hose is better.
Ya know Mike, I got a call one day threatening me for telling people about roof cleaning.
The call warned me to STFU on the Internet, or ELSE !
I was told, in no uncertain terms, I would be hassled and black balled from the Industry IF I continued to show people "all da tricks"

Well, the threat came true, but ya know what ?
I would do it all over again.



Laughing

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