Why doesn’t this Shampoo Machine work.

[Bobbysmalls]

This is how the upholstery tool’s hose was connected to the vacuum’s hose. I just took it apart to make this thing work well.

 

[Bobbysmalls]

I can understand your frustrations. Regarding the water dripping, is there a removable nozzle at the end of the spray head? i suspect there is a small piece of debris clogging the nozzle or possibly the valve that turns the spray on/off. If you have that attached to a city water source you should have plenty of water flow.
Does the vacuum have a rubber seal where the top meets the bottom can? Shop vacs are pretty simple and even cheap ones will work pretty good as long as it is well sealed. All of the makeup air needs to be coming back to the canister from the hose. Any air leaks on any other part of the vacuum will reduce the suction at the hose. If there are even a couple of small "insignificant" air leaks the suction will be affected more than you'd expect.
Good luck

No, there’s no rubber seal. And there’s no filter in it. I just disconnected the upholstery’s tool hose from the vacuums hose. The upholstery tool’s is not able to fit into the vacuum. I’m not really concerned with the water amount, my issue is it is not sucking up chemicals/water, and the stains stay on whatever I’m cleaning.

 

[Blanco]

Bud should’ve also let you know you’re ignorant.

What's ignorant is you believing somehow a miracle can happen and that harbor freight shop vacuum with some POS attachment with duct tape on it can be turned into a professional detailing machine.

 

[Bobbysmalls]

What's ignorant is you believing somehow a miracle can happen and that harbor freight shop vacuum with some POS attachment with duct tape on it can be turned into a professional detailing machine.

You realize I’m using this forum as a way to show the boss the “machine” simply does not work. Thanks though. You really are helping by talking bad about the machine.