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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
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.
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.
MULTIPLE TANK INSTALLATION
MAINTENANCE
Although our PressureWave™ diaphragm tank design is maintenance-
Fig. 2.2
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