aca carwash 2
Member
what do you look for if a hydrominder does not pull and its not the foot valve or tip?
hydrominder
- Thread starter aca carwash 2
- Start date
It could be that you don't have enough water flow into the hydrominder. I had the same problem when I added a couple units on the same water supply as my existing units. I ended up having to upgrade my supply from a 3/4" to 1-1/4".
Either that, or you are sucking air on a hose, or thread connection on the chemical line.
Either that, or you are sucking air on a hose, or thread connection on the chemical line.
Last edited:
What do you mean what you say “hydrominder does not pull”. Do you mean that it doesn’t pull up chemical?
Check the screen on the inlet of the Hydrominder.
Check the incoming water pressure. You want to be at around 40 psi, the minimum water pressure is 25 psi.
You could also have worn out eductor, part #440100
Check the screen on the inlet of the Hydrominder.
Check the incoming water pressure. You want to be at around 40 psi, the minimum water pressure is 25 psi.
You could also have worn out eductor, part #440100
MEP001
Well-known member
Sometimes the valve doesn't open fully and there isn't enough flow for it to draw. If you remove the suction hose and tip there should be a very strong vacuum when you cover it with your finger.
You also need the proper discharge hose on it for it to draw correctly.
You also need the proper discharge hose on it for it to draw correctly.
Dcalhoun
Member
I would look at the eductor. I keep spare eductors around and swap them out every so often to clean them up. Usually let them soak for a bit in muriatic acid (available at the local Menards) to clean up soap/chem residue that blocks the small suction slot. This is quick and easy as I can usually swap one out in the time one car washes. I just recycle the eductors and they last a long time. I don't recall ever having an eductor wear out.
Ghetto Wash
Active member
- Joined
- Sep 11, 2007
- Messages
- 611
- Reaction score
- 43
- Points
- 28
Always been the diaphragm, I've never had an eductor go bad.
Robert2181
Member
We always order in a new one and use the other one for backup and parts
Earl Weiss
Well-known member
- Joined
- Aug 31, 2007
- Messages
- 6,372
- Reaction score
- 943
- Points
- 113
Especially on wheel cleaner I have had educators foul with accumulation of product. (Easy to see if you take it off) Need to remove it and look inside. A wood screw is a good cleaner along with compressed air.
Its all the above... start with the inlet strainer where water supply comes in, make sure it is clean. Then work your way to the valve. Usually it is this valve (diaphragm, spring) clean it and/or replace it. I always have backup valve kit to replace. Then its the plastic valve itself then the educator.
