MBSP-2 datasheet(4/40 Pages) PENTAIR

4 / 40 page

Installation

Figure 2: Typical installation with separate

discharge pipes.

Figure 3: Typical installation with common

discharge pipe.

Common Discharge

NOTICE: In this installation, if the Primary Sump Pump (PSP) does not

have a check valve installed below the wye, you MUST install a check

valve for the PSP as shown.This prevents backflow of water into the

sump from the Batter Backup Unit. Check Valve Flapper(s) must swing

AWAY and flow arrow(s) must point AWAY from the pump being protected.

The water level when the switch shuts off must be above must be above the

BBU pump intake.

Typical installation,

assembled.

Not to scale.

Wiring omited for clarity.

* Supplied with the Battery Backup Unit.

Intems in italics must be purchased separately.

Both check valves

must be installed

on the pump side

of the wye.

1-1/2” PVC Upper

Discharge Pipe

(cut to fit)

U74-68 Hose and

Clamp Assembly

1-1/2” PVC Riser Pipe

(cut to fit)

45 degree Slip Wye

Optional 1-1/2”

PVC Pipe (cut to fit)

45 degee

slip elbow

Battery Backup

Switch*

Alternate Wye/Elbow

Setup

MBSP-2 Datasheet(PDF) 4 Page - Pentair plc. All rights reserved.