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Pressure and nozzle size

Starrwash

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I am currently operating my self serve pumps at 1000psi with 2505 nozzles, I am curious what other operators are running?
 

Jeff_L

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I use 2505 as well, gives good show and a little kick. I would rather go with 1505 as you can cut film easier with the smaller fan, but customers complained. So I went back to 2505.
 

MEP001

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1200 with a 25055, I'd run a 2506 but the city wants car washes limited to 3 GPM. I'm still slightly over that, but not enough that the inspectors ever care.
 

Randy

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1300 - 1400psi 1505 nozzles. We've used 1505 nozzles for over 20 years, no one has ever complained.
 

soapy

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1508 at 1200 psi. A lot more impingement. I tried tips with less volume and found it took me much longer to clean each bay.
 
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Car_Wash_Guy

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I've been running 2507 @ 1400 psi for a while. I put in a 1505 a few weeks ago and ..... I really didn't like it. Not sure how much water I'd save but the "fan" is too narrow and cleaning power is much less (obviously 7 compared to 5).
 

Earl Weiss

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I run a little over 100o PSI for regular bays and a little over 1200 for Superbays.
 

DiamondWash

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What's everybody have for motor size 3hp or 5hp I currently have 3hp really thinking of moving up to 5hp when I buy new Arimitsu pumps this summer
 

Randy

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I use a 3hp 3 phase motor with no problem running the Cat 310 pump at 1400 psi with a 1505 nozzle.
 

Starrwash

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I also have the 3 hp 3 phase. Not sure the advantages of a 5hp? Also as follow up I did increase my pressure to 1100psi with the 2505 tip. This feels good with me, does a fine job and reduces hand fatigue. Trying to balance factors including; hand fatigue, water usage, chemical usage and customer satisfaction. My goal is to get and keep customers returning and spending as much time as possible with the meter running
 

STXCW

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2507 @ 1200psi, we have mostly 5hp motors with a few 3hp
 

MEP001

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What's everybody have for motor size 3hp or 5hp I currently have 3hp really thinking of moving up to 5hp when I buy new Arimitsu pumps this summer
The Arimitsu 313 would be fine with 3 HP motors. For some reason, the 516 calls for 4 HP when running standard bay pressures. I would think you would still be ok with 3 HP motors, since every other pump out there will run on a 3 HP motor at standard bay pressures. If I were to try a 516, I'd try it with a 3 HP and do a load test on the motor.
 

I.B. Washincars

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One of my washes had two bays with 3HP motors. I installed 516s w/2506 and ran them at 1200 with no issues at all. Greg at Arimitsu has a formula for determining HP needed for the GPM and pressure you are running.
 

MEP001

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Greg at Arimitsu has a formula for determining HP needed for the GPM and pressure you are running.
Yes, he sent that to me and showed where the requirement for the 516 was well over 3 HP. I think it's just an overestimation.
 
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