lost pressure
- Thread starter dozerman
- Start date
cantbreak80
Maybe I need new clubs
While you're at it...replace the spray tip, too.
MEP001
Well-known member
Replace the tip with a new one, and make sure it's the correct size.
You could have a failed check valve letting pressure go back through something. The weep one is easiest to diagnose because your other bays will be weeping when the bay with weak pressure is running.
If the pump clatters really loud with the trigger pulled but is quiet with it released, you have a restriction on the water line to the pump, often a failed check valve.
If you go so far as to check the valves in the pump, look inside for any debris and suck on them to be sure they seat completely.
You could have a failed check valve letting pressure go back through something. The weep one is easiest to diagnose because your other bays will be weeping when the bay with weak pressure is running.
If the pump clatters really loud with the trigger pulled but is quiet with it released, you have a restriction on the water line to the pump, often a failed check valve.
If you go so far as to check the valves in the pump, look inside for any debris and suck on them to be sure they seat completely.
MEP001
Well-known member
I had mine typed first.
washnvac
Well-known member
I 2nd Randy. I bet it is the regulator.
DiamondWash
Well-known member
Speaking of Regulators what regulator is everybody here recommend, I've been using the SMC 555 balanced regulator, and what's everybody thought on rebuilding a regulator versus just replacing the whole unit.
www.kleen-ritecorp.com
555 Series Pressure Regulator | SMC Regulator Valves 5550090
The SMC 5550090 Regulator is a brass regulator with Buna seals and a gold high-pressure spring. 2000 PSI, 7 GPM, 3/8" FPT, 180° F.
As my Cat 7003 regulators that are original equipment on my pumping equipment go bad I’ve been replacing them with a J.E Adams 7085 regulator. I’ve never had any problems with the Adams 7085 regulator. At less than $40 why rebuild them
MEP001
Well-known member
I still prefer Paraplate BR5-2. They last 10 years or more, and I don't rebuild them because it seems like once they start to leak they won't hold a kit.
Adams 7075 and 7085 have been a problem for me. About one out of four will eventually quit working right and not hold the pressure like they should. It's a strange issue, if you start the bay with the trigger pulled the pressure is fine, but once you release and pull it again the pressure is a lot lower than it was set for. A kit sometimes fixes it permanently, sometimes it'll do it again after a few weeks or months. I'm not rebuilding them anymore (if that's what's already there) because I'm replacing them with the SMC 555. It's the last reliable, inexpensive regulator.
How do I figure the correct tip size?
cantbreak80
Maybe I need new clubs
Spraying Systems tips...
At 1,200 PSI:
#5.5 tip delivers 3.0 GPM
#6 tip delivers 3.2 GPM (most commonly used)
#6.5 tip delivers 3.5 GPM
#7 tip delivers 3.8 GPM
So, a Spraying Systems nozzle marked 1/8VVSS4006
is a 1/8" pipe thread/VVSS is nozzle type/40 is spray pattern/06 is tip size
At 1,200 PSI:
#5.5 tip delivers 3.0 GPM
#6 tip delivers 3.2 GPM (most commonly used)
#6.5 tip delivers 3.5 GPM
#7 tip delivers 3.8 GPM
So, a Spraying Systems nozzle marked 1/8VVSS4006
is a 1/8" pipe thread/VVSS is nozzle type/40 is spray pattern/06 is tip size
Thanks for coming back and sharing that information with us.
Greg Pack
Wash Weenie
If it continue to break O rings on the same valves, you may need to have the valve area washing out.
I.B. Washincars
Car Washer Emeritus
- Joined
- Aug 30, 2007
- Messages
- 4,289
- Reaction score
- 1,171
- Points
- 113
- Location
- SW Indiana melon fields.
I'm thinking he will find out in a couple of weeks.
DiamondWash
Well-known member
Just got my 2507 VeeJet nozzles from KR today, should they have that metal vane inside of them or not, mine didn't have any but my other Imegs always had them.
Last edited:
