4.2. Pump Mounting
Install pump on a level concrete slab or other rigid base to meet all local and national codes. Secure
pump to base with screws or bolts to further reduce vibration and stress on pipe or hose joints. The base
must be level, rigid, and vibration free.
Pump mount must:
Allow pump inlet height to be as close to water level as possible.
Allow use of short, direct suction pipe (to reduce friction losses).
Allow for valves in suction and discharge piping.
Be protected from excess moisture and flooding.
Allow adequate access for servicing pump and piping.
4.3. Pipe Sizing Chart
MAXIMUM RECOMMENDED SYSTEM FLOW RATE BY
PIPE SIZE
Pipe Size
in. [mm]
Maximum Flow Rate
GPM [LPM]
Minimum
Straight
Pipe Length “L” in.
[mm] *
1 ½” [50]
45 [170]
7 ½” [190]
2” [63]
80 [300]
10” [254]
2 ½” [75]
110 [415]
12 ½” [317]
3” [90]
160 [600]
15” [381]
* Note:
It is recommended that a minimum length of straight piping (shown as “L” in above diagram),
equivalent to 5 pipe size diameters, be used between the pump suction inlet and any plumbing fittings
(elbows, valves, etc.).
When installing the LifeStar® VS, care should be taken to ensure proper pipe and equipment
sizing to handle the maximum flow required. It is recommended to set the maximum speed in
order to not exceed the maximum flow rate. See section 6.6 item #7.
4.4. Plumbing
1.
Use PTFE tape to seal threaded connections on molded plastic components. All plastic fittings must
be new or thoroughly cleaned before use. NOTE - Do NOT use Plumber’s Pipe Dope as it may
cause cracking of the plastic components. When applying PTFE tape to plastic threads, wrap the
entire threaded portion of the male fitting with one to two layers of tape. Wind the tape clockwise as
you face the open end of the fitting, beginning at the end of the fitting. The pump suction and outlet
ports have molded-in thread stops. Do NOT attempt to force hose connector fitting past this stop. It
is only necessary to tighten fittings enough to prevent leakage. Tighten fitting by hand and then use
a tool to engage fitting an additional 1 ½ turns. Use care when using PTFE tape as friction is
reduced considerably; do NOT over-tighten fitting or you may cause damage. If leaks occur,
remove connector, clean off old PTFE tape, re-wrap with one to two additional layers of PTFE tape,
and re-install connector.
2.
Fittings (elbows, tees, valves, etc.) restrict flow. For better efficiency, use the fewest possible
fittings. Avoid fittings that could cause an air trap.
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
_____________________________________________________________________________________
Hayward Flow Control
www.haywardflowcontrol.com
1-888-HAY-INDL (1-888-429-4635)
IS3401VSPFC Rev A 12/08/14
Pg. 8 of 36
