W. P. Law, Incorporated - Fluid Handling Professionals
Prior to operation, with the  tank, empty of water, the pressure should be 2psi below the cut-on pressure.  So, for example, with a 30-50 pressure switch (factory default setting), air pressure in the tank will equal 28psi.  If the pressure switch is adjusted to 40-60, the cut-on pressure will be 38psi.  Furthermore, always set the pressure switch to reflect a 20psi differential between cut-on and cut-off.  If the pump cycles too quickly causing the pump to cut on and off, setting the pressure switch to a higher on/off setting should slow down the cycling.  Remember to adjust the air pressure in the tank to reflect the new cut -on pressure.  Warning!  Most non-commercial tanks have a pressure rating of 100psi!

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MAIN OFFICE - LEXINGTON

303 Riverchase Way
Lexington, SC 29072

Phone 803-461 -0599
Toll-Free 800-476-4515
Fax 803-461 -0598
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MONDAY - FRIDAY
8:00am - 5:00pm

 

Summer Hours:

Effective March 11, 2017
thru August 26, 2017

SATURDAY
8:00 am - 12:00 pm
Counter Service Only

MONDAY - FRIDAY
5:00 pm - 6:00 pm
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CHARLESTON

3636 Belvedere Rd.
John's Island, SC 29455

Phone 843-559-3945
Fax 843-559-2740
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MONDAY - FRIDAY ONLY
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GREENVILLE

1330 Grove Rd.
Greenville, SC 29605

Phone 864-295-3810
800-660-7569
Fax 864-295-6990
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GREER

2400 Highway 101 S.
Greer, SC 29651

Phone 864-879-1045
877-835-0714
Fax 864-879-1 046
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MONDAY - FRIDAY
8:00am - 5:00pm

 

Effective April 2, 2016
thru August 27, 2016
SATURDAY
8:00 am - 12:00 pm
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