Hey group, need a little help on what I am doing wrong on adjusting my foam brush. 8 bay self serve wash, regulator on air and chemical and needle valves for each bay on both chemical and air. If we adjust it to look good with 1 or 2 bays running, then when 5-6 bays are running on the weekends it's way to much air and stops coming out in some bays. So currently have it adjusted so it works and looks good with 5-6 bays running, but that makes it too little air and runny when just 1-2 bays using FB. Most adjustments are done with the needle valves, we don't mess with the pressures much at all. 1x G57 flojet running the whole system.
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Need help adjusting foam brush
- Thread starter Keno
- Start date
You can try turning on all the bays on foam brush at the same time. Open all the needle valves for both air and chemical. Adjust the chemical and air pressure to all bays using the regulators until they are coming out at least good or strong in all of them. Then you can dial down the needle valve for each bay air/product as and if needed. I would personally leave the needle valves completely open and use your regulators for air/product to adjust the bays. There is no need to adjust each one individually. Your flojet might also be going bad which could be letting air push back may be the reason it suddenly stops coming out in some bays because the flojet cant keep up. I bet if you removed all those garbage nayax readers you wouldn't have this problem anymore
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"Working OK with a couple of bays then not working well when all bays are running" sounds like a possible restricted liquid flow scenario. Make sure the inlet screen filter is clean and then start to look for possible choke points on the discharge side of the pump: a partially closed or obstructed valve or even buildup of goo in the lines.
Coleman does't have needle valves on their low pressure stuff and they work fine. There may be slight differences in each bay but the absence of them does simplify things. You can try opening all of them wide open and adjust regulators accordingly to see if there is any difference but I know it may be a pain to get everything fine tuned again.
Coleman does't have needle valves on their low pressure stuff and they work fine. There may be slight differences in each bay but the absence of them does simplify things. You can try opening all of them wide open and adjust regulators accordingly to see if there is any difference but I know it may be a pain to get everything fine tuned again.
Earl Weiss
Well-known member
For my 8 Bay I used 2 FloJets. Each tied to 4 Bays. Worked well. All other selections used one , but with the Erie 6 Hole FB I felt one would not handle volume on busy days - I did not have needle valves or foamers.
I'll try to work the needle valves out of the system or at least get them wide open. It doesn't seem like its a lack of chemical, when I jack up the pressure on the flojet during busy times as a test, it starts working in all the bays and looking good. I may try to add another flojet if that doesn't work, but pretty sure this system has been on 1 flojet for 20+ years. Inlet screen is cleaned monthly (overkill, I know). Is 40psi flojet and 30psi air still the recommended starting point?
Knock on wood, Nayax has been great for us, they are a global fintech company with crap ton of units in service, so they must be doing something right. Looks like they are the standard for car washes in Australia and many other areas. Our very first units have lasted 3+ years in our busiest bays at this point, but even if I had to replace every 6-12 months, it wouldn't be a big deal for me with the amount of use and revenue they bring in. We've only lost units due to customer abuse, which has been pretty much eliminated with the addition of external stop buttons on all count-up devices.
Knock on wood, Nayax has been great for us, they are a global fintech company with crap ton of units in service, so they must be doing something right. Looks like they are the standard for car washes in Australia and many other areas. Our very first units have lasted 3+ years in our busiest bays at this point, but even if I had to replace every 6-12 months, it wouldn't be a big deal for me with the amount of use and revenue they bring in. We've only lost units due to customer abuse, which has been pretty much eliminated with the addition of external stop buttons on all count-up devices.
Just messing with you Keno. Hopefully they keep working out for you. Have been absolute junk for me.
I know you were messing around, I've seen your struggles with them, seems they are hit or miss for quite a few folks.
