Clean It Up
UK Floor Cleaning Forum => Carpet Cleaning Forum => Topic started by: john aitken on September 08, 2017, 03:21:09 pm
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I have a 500 psi pump [pump tec ] I think ..when I turn it off .. then back on I have to prime it before ill work ,,any ideas don't think ..theres any loss in pressure
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The solution might be falling back into the tank, fit a check valve to stop back flow.
If you imagine Turning off your machine, the pipe that feeds the pump will be full of solution if this solution flows backwards back into the holding tank then once you restart the pump it has to suck air until the solution flows back up the pipe, a check valve stop the backward flow
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The solution might be falling back into the tank, fit a check valve to stop back flow.
If you imagine Turning off your machine, the pipe that feeds the pump will be full of solution if this solution flows backwards back into the holding tank then once you restart the pump it has to suck air until the solution flows back up the pipe, a check valve stop the backward flow
Never thought of doing that, good idea :D
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Just a side note.... this is only the case if the pump is higher than the water supply, if the water is gravity fed into the pump it should stop it happening but I think a check valve (which only allow the water to flow one way) is always a good idea on supply hoses it should stop the need to bleed air from solution lines
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The solution might be falling back into the tank, fit a check valve to stop back flow.
If you imagine Turning off your machine, the pipe that feeds the pump will be full of solution if this solution flows backwards back into the holding tank then once you restart the pump it has to suck air until the solution flows back up the pipe, a check valve stop the backward flow
its gone ..however the problem with what your saying is it would be pressurised all the time ..
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The supply hose has no pressure, it is open ended at the water tank, you only get the pressure after water leaves the pump. The hose that feeds the pump has either a negative pressure (if the tank is lower than the pump) or a slight gravity supplied pressure (if the tanks is above pump)
it's the supply hose that I'm referring to when I suggest a check valve