Can You Use A 100 Ft Hose On A Pressure Washer

The theoretical and practical limit on hose length when force per unit area washing is different.

Let's observe the theoretical showtime, then the practical, assuming:

1/2″ bore hose
Water flow rate of 2 GPM
2,500 PSI @ 2 GPM
Flat ground

With those assumptions here are the hose length limits:

Theoretical hose length limit: 9.47-miles

Theoretical hose length limit overlayed new york

Pressure loses due to friction inside the hose are 5 psi for every 100-feet of hose length
The hose has to be l,000-feet (nine.47-miles) long to have 0 psi at leave stop.

Practical hose length limit: 200-ft

Practical pressure washing-hose-length overlayed soccer field

200-ft is long only still applied, about one-half the length of a soccer field
This is assuming the hose and pressure unit are at the same height. And you're on a relatively straight line of sight to the pressure unit. Y'all could go well across 200-ft just information technology speedily becomes pointless due to risk of hose damage, weight of dragging the dead hose around… And, can't you lot just become closer to the surface you lot're cleaning?
Besides, 200-ft is about as long as yous tin go while still being able to siphon detergent/soap into the line. To visualize why, think about sucking soda through a vi-ft straw. Much harder than a 6-inch harbinger, right?

Practical Pressure Washing Hose Length Limitations

1.) Height changes

Do you lot need to park your truck and pressure washer at the bottom of a long steep driveway and walk the hose and force per unit area lance up to make clean their dorsum deck?

Let'southward say the vertical height is 100 feet from your pressure level washer unit to the elevated back deck.

Looks something like this:

How will this modify the PSI and GPM at the top?

In short, in that location volition be petty noticeable change in PSI. The PSI (2,500 PSI to start) volition have 43 PSI pressure loss due to meridian and around 5-ten PSI loss due to internal hose friction. You lose fifty PSI – but around 2% loss of pressure.

Likewise Read: How much pressure do I need my pressure washer to have?

two.) Adventure of hose harm

Expect at the drawing all the hose lying in the driveway/road. A car could run it over and outburst it with no discover. A good quality pressure hose of that length will toll a few hundred dollars to repair. Not worth the risk.

3.) Dead weight of length of hose

It'll exist a struggle to move the hose around when it has been rolled out 100 or 200 anxiety on the ground, full of water. The friction is generates over that length will make moving it around all day exhausting.

4.) Get-go-stop delays

Let's say yous're using a light-duty electric pressure washer with a 1.5 GPM flow charge per unit. One time you pull the trigger to start washing you'll have to wait for the water to reach you. The longer the hose the longer you'll have to wait.

Not much else to add together. One power washer will tell yous 50-anxiety is the practical limit and some other will tell you 250-anxiety. Weighing-up time saved, effort and risk you won't want to regularly launder more than than 150 or 200-feet from your power washer reel.

Jamey is the founder of pressurewashr.com and has led testing and reviewing since 2013. He has also worked as a commercial force per unit area washer at a rendering plant for iii years and has been using commercial and residential pressure washers for 15+ years. He is also a mechanical engineer and while working in the mining industry designed several turn-cardinal light industrial vehicle wash pads.