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Old 01-18-2014, 02:00 AM   #1
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unknown pressure switch settings


This post can be deleted now. Thanks for the input. J

Last edited by jklingel; 01-18-2014 at 10:53 PM.
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Old 01-18-2014, 04:19 AM   #2
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unknown pressure switch settings


Since no wanted pressure was mentioned. You must have a water pressure gauge on or close to the pumps output. I will tell you how I have my Myers Pump and system set up.

I have my system set of for 30 PSI on and 50 PSI off.
Air tank drained of water and check your precharge setting I keep my setting at 28 PSI on the air bladder. 2 below my on pressure of 30 psi.
I then turn on the pump with water pressure gauge installed. I adjust the ON pressure of the pressure switch to 30 PSI. Once that is adjusted I allow the pump to go up to the OFF pressure and set that up or down to 50 PSI . 50 lbs is about the limit of a Myers 1/2 pump. If a pump fails to make it to my wanted off settings then I would have to adjust it to a lower
off setting. Such as 45 PSI.

Some hardware stores sell pressure switches with several different preset ON and OFF pressures. So I usually just buy one ready to go for my setting.

The air tank preset charge pressure is critical to your on and off pressure switch working properly.
Most are set about 2 lbs less then your ON pressure.


Larry.
S. Florida
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Old 01-18-2014, 01:13 PM   #3
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unknown pressure switch settings


Larry: Thanks. The problem is, I have nfi what the cut-in/cut-out pressures are set to on the pressure switch. Somehow, they got tweaked. The pump was doing a lot of fluttering, as if the cut-in and cut-off were too close together, or the low a bit above the high. I dinked a while and got close to a 30-50, but there is still fluttering some of the time. Now that you mention the Myers will pretty well max out at 50, I may bring that cut-out limit down a little to see if that helps. I also drained the pressure tank and will fill it to 25 for starters and bring it closer to the cut-in once I am more comfortable that the cut-in is repeatable.
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Old 01-18-2014, 04:21 PM   #4
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unknown pressure switch settings


The switch cut in and cut out pressures can be determined with a
pressure gauge on the pressure side of your pump.

Run the pump until it shuts off. Look at the gauge. That is your OFF pressure
setting on your pressure switch.

Bleed off the water again until the pump comes on.. That is your ON pressure
setting on your pressure switch.

Make sure you have your air pressure tank set 2 lbs below your ON pressure setting on the switch.

Larry
S. Florida
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Old 01-18-2014, 06:59 PM   #5
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unknown pressure switch settings


Maybe your pressure tank doesn't have enough air pressure in it, if its a bladder tank. or it becoming water logged if its not a bladder tank.
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