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PRESSURE TANK INSTALLATION
IF REPLACING A TANK
With all power turned off to the pump system, drain the old
tank, close all water flow to the tank and disconnect it from
the system. Check all fittings, valves, switches and gauges for
proper working condition and replace as appropriate.
CONNECTING TANK TO SYSTEM
D i s c o n n e c t o r s h u t o f f a l l e l e c t r i c
p o w e r t o t h e w a t e r s u p p l y / p u m p
system. Shut of f the water supply to the system and
remove all water pressure from the system. Failure to
follow these instructions may result in serious injur y,
death and/or proper t y damage and will void product
warranty.
A s u i t a b l e p r e s s u r e r e l i e f v a l v e ,
set at a maximum of 100 psi, must
be installed in the system near the
pressure tank (see Fig.1.1)
T he pre ssure tank should be installed in the incoming
water supply line from the pump system and before any
point of user (POU) fixtures. (see Fig. 1.1)
EASY AS 1-2-3 INSTALLATION
1
Remove and discard the protective cap from the pressure
tank's stainless steel water connection. Connect the
tank cross / tee fitting (3- or 5- way connector for inline
or horizontal pressure tanks) into the pressure tank with
adequate pipe sealant (Teflon™ Tape or pipe dope) on the
male threads. Be cautious to not over-tighten, cross, or
strip threads when connecting fittings.
2
Once the fitting is securely tightened, be sure that the
threaded holes for your pressure switch and pressure
gauge on the tank connection fitting are in the upward
position. (See vertical tank examples Figures 1.1, 1.2, and
1.3, horizontal tank example Figure 1.4 and inline tank
example Figure 1.5).
3
With adequate pipe sealant, connect all of the fittings,
valves, pressure switch, pressure gauge and water system
pipe / connection unions to the connection fitting.
All piping and electrical components should
be in accordance with prevailing local codes
and standards.
STARTING THE SYSTEM
Before turning on the water supply to the system, open a
water faucet to allow air from the system piping to be purged.
Turn on the power to the water supply and the pump should
turn on, filling the system piping. When the water is flowing
freely from the faucet without air, close the faucet. The pump
will continue to run filling the pressure tank.
I n s p e c t t h e i n s t a l l a t i o n f o r w a t e r l e a k s
paying close at tention to the connection
3
between the pressure tank and the system piping.
GWS USA, Bradenton, FL, USA • support@gwsusa.com • (833) 261-5461 • www.gwsusa.com • 2020 Rev. 02.25
TYPICAL INSTALLATIONS
Tank
Pressure Switch
Pressure Gauge
Shut Off / Check Valve
Water Flow
To System
Drain
Pressure
Valve
Relief
Valve
From
Pump
Fig. 1.2 With Submersible Pump
Submersible Pump
Tank
Pressure Switch
Pressure Gauge
Shut Off / Check Valve
Water Flow
Pump
Drain
Pressure
Valve
Drain
Relief
Valve
Fig. 1.3 With Convertible Jet Pump
If you have a jet pump, to prevent damage to the well
system, close or plug the opening during tank
installation where the installation where the vacuum and
air volume controls connect to the pump and/or piping.
To Water Usage /
Pressure Relief Valve
System
Pump
Pressure
Switch
From
Water Source
Drain Valve
Tank
Fig. 1.4 Booster Pump w/ Horizontal Tank
Tank
Pressure
Switch
Pressure Gauge
Pump
Fig. 1.5 Booster Pump w/ Inline Tank
MULTIPLE TANK INSTALLATION
All tanks must have the same pre-charge for the system to function properly. Tanks should be installed on a header to ensure all
tanks receive equal and balanced pressure. Adjust each tank pre-charge as detailed in the adjusting tank pre-charge section.
The system pressure switch or control should be centrally located (see Figure 2.1 & 2.2) in order for the tanks to function
properly.
Fig. 2.1
MAINTENANCE
PressureWave™
It is recommended that the system is checked annually by a qualified professional. The pressure tank and its connections
to the system should be visually inspected regularly for any signs of water leakage or corrosion on the exterior of the tank or
connection. If any is seen, replace tank immediately.
Although our PressureWave™ diaphragm tank design is maintenance-
free, damaged and/or poorly working accessories and tank fittings can adversely affect the tank's performance, as can
extreme temperature variations and age. Therefore, the tank pre-charge should also be checked periodically.
PressureWave SF™
PressureWave SF™ pressure tanks have a replaceable membrane and require pre-charge checks by an authorized service
professional every six (6) months. Failure to check and adjust pre-charge every six months voids the warranty.
Always release all water and air from tank before disassembling the parts exposed to pressure
such as flanges, air valve, pressure gauge, and the like.
To confirm pre-charge, shut off power to the pump, isolate and drain the tank. Check pre-charge using a pressure gauge. If
needed, top up air to appropriate pre-charge level using an air pump or compressor. Open isolation gate valve allowing the pump
to fill the tank with water.
If the pump short cycles, check the air valve mounted on the tank. If water bleeds from the valve, the membrane has burst. Please
call an authorized service provider to replace the membrane with factory replacement parts and instructions (see
gwsusa.com/support).
GLOBAL WATER SOLUTIONS USA LIMITED PRODUCT WARRANTY
PRODUCTS COVERED
PRESSURE WAVE™ Series – LX, LH, and LV Tanks
PRESSURE WAVE SF™ Series – LV Tanks
IMPORTANT
Carefully read the installation, operating and maintenance instructions manual to avoid serious personal injury and/or property
damage and to ensure safe use and proper care of this product.
WARRANTY
Warranty is extended to the original purchaser of the new product and is not assignable or transferable. Global Water Solutions
USA (GWS USA) warrants that will be free from defect in material or workmanship under normal usage conditions beginning on
the date of manufacture for a period of five (5) years. Any warranty claim must be made within five (5) years (unless another time
period is set forth in the manual), measured from the date of manufacture.
To receive service under this warranty, the consumer must deliver the alleged defective product, freight prepaid, to an
authorized GWS USA distributor or dealer within thirty (30) days after the expiration of the warranty period. GWS USA will either
refund the purchase price paid, or, at its option, repair or replace defective product freight prepaid to the distributor or dealer.
GWS USA will not accept any claims for, nor will GWS USA be responsible for, any other cost, including labor.
Fig. 2.2
4
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