chemical application

[aca carwash 2]

on a ds5000 what causes too much chemical to be left on the car I just replaced all of the check valves and I'm getting a lot of soap left on the car.

 

[MEP001]

You could be putting too much soap on the car.

 

[aca carwash 2]

I backed of pill but it was only a yellow.when you hit the entrance pad and the undercarriage activates and water comes out of the gantry at the same time is that prevented by the dema valves or ck valves? I replaces 3 check valves on the high pressure thst were all blown and 3 on the presoak that were all blown. I didnt have enough to replace the (3) tri gloss ones as im sure
They are blown as well. Would this prevent tri gloss from getting a good application to the bay or would this cause rinse to be soapy?

 

[Jeff_L]

I'm having a hard time deciphering the question. However, if you had check valves that were malfunctioning, it's possible you have/had chemical backing up into a clean water tank (such as spot free). Might want to consider emptying and refilling that tank after you've found and repackaged the check valves.

 

[MEP001]

Jeff is right, and it's the Dema solenoids that stop flow to the gantry when the undercarriage is on.

 

[aca carwash 2]

Thanks Jeff, if I replaced 6 and the tri gloss are bad as well possibly could that be backing up? its looks more like soap.

 

[aca carwash 2]

what controls the flow on the side spinners I have a long run on one automatic and I'm not getting a good application from the side spinners on presoak or try gloss can it be adjusted anywhere or might it have to do with blown tri gloss check valves? I just can't seem to get a good application from the side spinner the other day of so much better

 

[MEP001]

the other day of so much better

"The other bay is so much better"?

There's not an individual adjustment on the side spinners. If the manifolds for both machines are in the equipment room and the high pressure lines from one machine run across a bay, the best thing to do would be to move the manifold out to the bay. That could also be the problem you're having with it leaving soap on the car. It takes a long time to purge the lines.

 

[aca carwash 2]

Thanks MEP, don't mean to be a knucklehead but what do you mean by manifold?

 

[MEP001]

On the wall where the presoak and trifoam tee into the high pressure lines to the bay. It can take a long time to purge 40-50 feet of hose full of soap, and you get a lot of line loss trying to move foam through that much hose.

 

[aca carwash 2]

Thanks MEP, the manifold is right above the bay I replaced 6 check valves but have not replaced 3 for the Tri gloss, the 6 check valves / place were all blown I'm sure the three to the tri gloss are blown as well when I fix that do you think that'll make the difference?

 

[MEP001]

I'm sure it will if they're bad.

I'd recommend the stainless Fluid Controls valves that you can get at Kleen-Rite. The ones with the Teflon seal won't blow out.

https://www.kleen-ritecorp.com/c-156-fluid-controls-check-valves.aspx

 

[aca carwash 2]

Ok so I have replaced all the ck valves. The "too much soap situation was a stuck dema valve and the "high pressure nozzles" were not coming on all the time (getting stuck) I also had the soap solenoid on backwards and it was backing up into the wash water tank, so now both of them are fixed. I'm still not getting the application on the farthest run bay on presoak or tri gloss. Should I be running the same pressure and chemicals to that bay if its alot longer run or is the run distance only considered from the manifold to the bay if the check valves work? Running the same pressure as the short run the application on the long run is more liquidity, less coverage. What is the black valve on top of the presoak tank? how do you adjust the chemical/air to the bay? should no longer run take more air to push? Restriction?
I have a regulator on the bench and a regulator on the wall. For 2nd step I have a flow jet pump.