Does it matter what type of garden hose I use?

JonMiles said:
I beg to differ on this. If you have a change in volume going through the same size orifice you will have a change in pressure directly proportional to the volume. (insert ugly looking calculus relation here)

Laidler, Meiser and Sanctuary Physical Chemistry 4th edition pg 374

So if you take into account the volume increase by bringing the same length of hose (50 ft) from 5/8" to 3/4" you would have a volume increase from 183.9 cu in. to 264.9 cu in. This would significantly increase the water pressure, especially considering that the restriction of the hose is normally the limiting factor in water flow.
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Well stated as always, John. I bought a 100 ft. 3/4" diameter Gilmour with a lifetime warranty. I found a DRAM brass HD shut off valve and Nelson quick disconnects to be the best quality. I got all on Amazon. Well worth the money. Gilmour is a lighter weight and flexible choice. If it fails, I cut off the fittings and mail to Gilmour for a replacement, Bigger diameter wont kink or hang on tires as easy IME!
 
pfix said:
I found this article that has some good info on garden hoses and flow rates of the various diameters.

All About Garden Hose
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These are clearly an ideal case = getting even 9 gpm is a lot of water. These is loss in any house water distribution depending on how the faucets are fed. The larger diameter hoses cannot compensate for smaller house pipes but at least they do not add to the loss.
 
Hi all. Sorry to go back to such an old thread, but after re-reading it I just wanted to confirm it's agreed that a 3/4" is 'better' than a 5/8" as far as getting more pressure out of a nozzle (or Gilmour foam gun)? Essentially, by pumping MORE water through the 3/4 than the 5/8, it allows the nozzle or Gilmour to create more pressure (as opposed to using a 5/8 and having more pressure through the hose, but not as much water once it gets to the nozzle/gilmour).

Essentially, I want to get as much foam out of my gilmour as I can, so I'm thinking a 3/4" hose is better. Just wanted to confirm.

Thanks!
 
BobbyG said:
Through the years I've gone this route as well buying the cheapest I could afford, after all it's only water passing through it.

Then it kinks, the hose fittings corrode through, it freezes once and splits, the sun attacks the plastic, it never lays flat...............

Normally lasts 2 years then it's time to start over, if you haven't done so already.

Premium hoses withstand just about anything. The hose connections for the most part are solid brass and not some stamped and formed junk that wears out after a year or two.

Buy a good quality hose and buy it once.
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:iagree:I have always bought the best Craftsman hose. They're guaranteed for life, no questions asked - and they're just easier to live with than the cheap hoses.
 
newb001 said:
I just wanted to confirm it's agreed that a 3/4" is 'better' than a 5/8" as far as getting more pressure out of a nozzle (or Gilmour foam gun)?
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Pressure and flow are two different things. A larger hose will give more flow assuming there is no restrictions upstream (like being fed by a 1/2-in pipe to the water faucet.

In really, I do not think it really matters. The extra loss unless super long hoses will not change much.

I have weak house pressure (maybe 60 psi) and not great flow (3 gallons per minute) and I get great foam from my Griot's foam gun with Optimum soap. The foam is really created as a metering in the foam gun. The volume of water would just control more how fast you can do it.

I took this pic but much of soap had already drizzled on the ground.

 
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