WellMate Fiberglass 30 Gallon Bladder Tank WM9

WellMate Fiberglass 30 Gallon Bladder Tank WM9 (C)
List: $631.88
Value Priced $470.70
Availability: ships the same business day

UPS Residential Ground Only. 2nd Day Shipments Are Not Available

WellMate fiberglass pre-charged 30 gallon bladder well pressure tanks # WM9. Equivalent in drawdown to a 82 gallon galvanized atmospheric tank. Tank drawdown is the amount of water that can be removed from a tank, when it is full, before the tank pressure drops and the pump is turned on to refill the tank. A larger tank gives more drawdown which means that more water is available before the pump is needed.


Volume: 30 Gallons. Inner liner: blow-molded polyethylene. Outer shell: Filament wound with fiberglass roving and epoxy resin. Bladder: Heavy-gauge polyurethane (Separates air and water). Bottom inlet/outlet assembly: high-impact PVC Air connection: Standard tire valve. Precharge: 24 PSI as per DOT CFR Title 49. Pressure must be adjusted accordingly upon final product installation Recommended Precharge: 4 PSI lower than pump cut-in pressure Recommended Precharge: 4 PSI lower than pump cut-in pressure Maximum operating pressure: 100 PSI Maximum temperature: 120 degrees Fahrenheit Connection: 1" MNPT (Male pipe thread) Carton dimension: 48" H X 20" W X 20" L Weight: 26 lbs. Materials: NSF and FDA listed Warranty Period: Factory 5 years warranty period for potable water residential installations and 2 years for non-residential installations.

• Pressure Tanks Technical

Wellmate Pressure Tank WM9
Drawdown In Gallons At Various Pressure Ranges
Tank Drawdown In Gallons Pressure Range (PSI)
10.00 20/40
8.90 30/50
7.70 40/60
6.79 50/70
6.20 60/80
3.37 80/100

WellMate Tanks Quick Connect Bulletin
WellMate Tanks Installation Manual
WellMate Tanks Limited Warranty Statement
WellMate Tanks Cross Reference Chart
Drawdown or Acceptance Factor Table

Hydropneumatic Jet System 2 to 2-1/2 Bathroom 3/4 HP

System components specifically pre-selected to meet a typical seven minute peak demand based on a 2 to 2-1/2 bathroom home when pumping from 15' suction lift with a 30-50 PSI working pressure. Values are averages and do not include higher or lower extremes. 3/4 HP, 115/230 Volts

Notice When placing your order, if the shipping amount reads $0.00 it means that your order has exceeded the UPS 150 lb. shipping limit and shipping charges cannot be computed automatically. Please divide the items and place multiple orders to see the shipping charges

Questions & Answers

What is tank drawdown?
Drawdown refers to the amount of water that evacuates the tank before the pressure switch will activate the pump. Drawdown is a affected by the pump, the size of the tank and the pressure settings that govern your water system.
What is the warranty on WellMate tanks?
All WM WellMate tanks carry a five year limited factory warranty for potable water residential installations and 2 years for non-residential installations.
Does the warranty cover labor?
No, unfortunately there are number of factors that can contribute to a failed tank and the only factor that WellMate can insure is the tank.
How does a pressure switch control the pump and tank?
The pressure switch communicates with the tank and the pump. The pressure switch monitors the pressure inside the tank and activates and de-activates the pump when cut-in and cut-out pressures are reached inside the tank.
How much pre-charge should I have in my WellMate tank?
Your tanks should be pressurized to 4 PSIG less than the cut-in pressure setting (for example, if your pressure settings are 30/50, then you cut-in pressure setting is 30 PSIG and your tank should have a 26 PSIG pre-charge).
How do you check or change the air cell pressure?
To check the pressure in the air cell, the power supply to the well pump must be turned off and the water must be drained from the pressure tank.. With the pump turned off and the water drained from the pressure tank a standard tire gauge can be used on the valve stem at the top of the tank. The pressure in the air cell should be 4 psi lower than the pump cut-in pressure.

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