Installation
TESTING FOR BLADDER
LEAKAGE
Step 1. Disconnect power to pump.
Step 2. Drain water from tank bladder by opening
faucet closest to tank.
Step 3. Remove valve cap and release all pressure
by depressing valve core. If the bladder is
leaking, water mist will spray out.
Retained water in tank may cause
sudden weight shift when moving tank. Support tank
so it cannot fall when being lowered or inverted.
Product Information – Pre-Charged Tanks
Catalog
Number
123352
Maximum
Catalog
Capacity
Number
US Gals (L)
123352
For parts or assistance, call Master Plumber Customer Service at
20-40 PSI
(138-276kPa)
2.2 (8.3)
Equivalent
to Standard
Tank US Gals (L)
6 (23)
15 (57)
Step 4. If replacing bladder, be sure air and water
pressures are relieved before removing
cover flange. When reassembling cover
flange, do not tighten nuts or mounting
studs more than 85 in-lbs. (9.6 Nm).
NOTICE: When using metal pipe with plastic fit-
tings use only Teflon tape or Plasto-Joint Stik
male threads.
Drawdown - Gals (L)
30-50 PSI
(207-345kPa)
1.8 (6.8)
Tank
Diameter
(mm)
12" (305)
40-60 PSI
(276-414kPa)
1.6 (6.1)
Tank
Length
Discharge
(mm)
Tapping
16-1/2" (419)
1-800-628-9439
4
on
1
Tank
3/4"