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D&S 5000

Sharpshine

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I am having trouble with my D&S 5000. I don’t think my presoak has enough pressure. I don’t have a regulator on it but the gauge reads about 90. Anyone else with a 5000 tag can tell me what their presoak is running? I’m just not getting any fanning action with my side spinners, just a stream. My power gloss comes out fine though.
 

MEP001

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Look on the plumbing hanging off the pump for a small valve, make sure the valve is closed. Some of them for some reason have a bypass valve that dumps most of the pressure back to the pump inlet when it's open.

Is there any air coming out with the presoak?
 

Sharpshine

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I don’t have a valve on my pump. Air is coming out but very little product. The check valve closest to the pump was bad. Replaced it but still not going much product.
 

MEP001

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The solenoid might not be fully opening, pretty common on those. The pump may not be completely primed which will cause a loss of pressure. I used to add a union fitting in place of the long nipple coming up out of the elbow to make priming easier.
 

Sharpshine

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Replaced the pump and fixed the problem, but do I really need this solenoid on it? I don’t understand what it’s purpose is.
 

MEP001

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If there's only the one line coming off the pump, you really don't need the solenoid. It's a DEMA 453P, which won't hold gravity flow from the tank without some pressure behind it. A good high-pressure check valve with 5 PSI cracking pressure will do the same job. Most units have a second line that applies some presoak as the car enters, which would be when you need solenoids on the outlet.
 

Sharpshine

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Thanks Mep. I only have one line and I have a check valve installed in it immediately after the dema valve. Seemed redundant to me.
 
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