For parts or assistance, call SHUR-DRI Customer Service at
1-800-535-4950
Installation
5
TESTING FOR WATER CELL LEAKAGE
Step 1.
Disconnect power to pump.
Step 2. Drain water from tank water cell by opening
faucet closest to tank.
Step 3. Remove valve cap and release all pressure by
depressing valve core. When air stops coming
from valve, remove valve core to release
remaining pressure.
Step 4. Disconnect piping from elbow on tank cover
flange.
Step 5. Carefully turn tank upside down or lay on its side.
Retained water in tank may cause sudden
weight shift when lowering. Support tank so it cannot
fall when being lowered or inverted.
Step 6. If water cell leaks, water will run out of valve. If
so, replace water cell.
Step 7. If replacing water cell, 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 fittings use
only Teflon tape or Plasto-Joint Stik
1
on male threads.
NOTICE:
Most standard tanks have separate inlet and
outlet ports. Pre-charge tanks have one port serving both
functions. When replacing standard tank with a pre-
charge tank, run pipe from pump into a tee as shown.
2nd leg of tee goes to tank elbow; 3rd leg goes to exist-
ing service.
To service
Pressure
Relief Valve
Pressure
Gauge
Pressure
Switch
From Well
Figure 5: Typical installation with vertical pre-charge tank and
submersible well pumps
* Length overall; this model is a horizontal tank.
Product Information – Pre-Charged Tanks
Maximum
Equivalent
Tank
Tank
Tank
Catalog
Capacity
to Standard
Diameter
Height
Discharge
Number
US Gals (L)
Tank US Gals (L)
(mm)
(mm)
Tapping
SDPT20
19 (72)
42 (159)
16" (406)
30-1/8" (765)
1"
SDPT20H
19 (72)
42 (159)
16" (406)
*24-5/8" (625)
1"
SDPT36
35 (132)
82 (310)
20" (508)
36-1/4" (921)
1"
SDPT52
50 (189)
120 (454)
24" (610)
34-3/4" (883)
1-1/4"
SDPT85
85 (322)
220 (833)
24" (610)
54" (1372)
1-1/4"
SDPT119
119 (450)
320 (1211)
24" (610)
68" (1727)
1-1/4"
Drawdown - Gals (L)
Catalog
20-40 PSI
30-50 PSI
40-60 PSI
Number
(138-276kPa)
(207-345kPa)
(276-414kPa)
SDPT20
6.9 (26.1)
5.8 (22)
5.0 (18.9)
SDPT20H
6.9 (26.1)
5.8 (22)
5.0 (18.9)
SDPT36
12.7 (48.1)
10.7 (40.5)
9.3 (35.2)
SDPT52
18.3 (69.3)
15.5 (58.7)
13.4 (50.7)
SDPT85
30.0 (113.6)
26.0 (98.4)
22.0 (83.3)
SDPT119
41.3 (156.3)
35.4 (134.0)
31.0 (117.3)