Wayne EWP10 Installation Instructions Manual

Installation Instructions 

EWP10

Water Powered 

Back-up Sump 

Pump System

Description

The EWP10 is a water powered back-

up sump pump.  It does not replace a 

regular pump. This pump is designed 

for use with municipal water systems 

and is inteded to be used as an 

emergency backup to your existing 

sump pump.

Unpacking

Inspect this unit before it is used. 

Occasionally, products are damaged 

during shipment. If the pump or 

components are damaged, return 

the unit to the place of purchase for 

replacement. Failure to do so could 

result in serious injury or death.

Safety Guidelines

This manual contains information 

that is very important to know and 

understand. This information is 

provided for SAFETY and to PREVENT 

EQUIPMENT PROBLEMS. To help 

recognize this information, observe 

the following symbols. 

     Danger 

 indicates 

an imminently hazardous situation 

which, if not avoided, will result in 

death or serious injury.

     Warning 

 indicates 

a potentially hazardous situation which, 

if not avoided, could result in death or 

serious injury.

     Caution 

 indicates 

a potentially hazardous situation which, 

if not avoided, may result in minor or 

moderate injury.

     Notice 

 indicates 

important information, that if not 

followed, may cause damage to 

equipment.

General Safety 

Information

Do not use to  pump flammable 

or explosive fluids such as 

gasoline, fuel oil, kerosene, 

etc. Do not use in a flammable and/or 

explosive atmosphere. Pump should only 

be used to pump clear water. Fatal injury 

and/or property damage could result.

© 2007 Wayne Water Systems

353300-001  7/07

If the basement has water 

or moisture on the floor, do 

not walk on wet area until all 

power is turned off. If the shutoff box 

is in the basement, call an electrician. 

Remove pump and either repair or 

replace. Failure to follow this warning 

could result in fatal electrical shock.

     A check 

 valve 

must be used on the primary sump 

pump discharge.

     This 

 pump 

must only be used to pump clear water.  

This pump is not designed to handle 

effluent, salt water, brine, laundry 

discharge or any other application 

which may contain caustic chemicals 

and/or foreign materials. Pump damage 

may occur if used in these applications 

and will void warranty.

Installation

Installation of this unit may take 

several hours. Before disabling your 

main pump, have ready an appropriate 

means of evacuating the sump.

1.  Turn power to main pump off.

2.  Pump must be installed using 1¼” 

or 1½” rigid PVC pipe.  Do not use 

flexible drain hose.

Pump Installation

The EWP10 can be installed with a 

separate dedicated discharge line 

(Figure 1, Method 1) or tied into the 

existing sump pump line (Figure 2, 

Method 2).

     Unplug 

 the 

existing AC pump.  Failure to follow this 

warning could result in fatal electrical 

shock.

3.  Verify that the existing AC pump 

is in good working order.  If the 

AC pump is questionable, it is 

recommended that the unit be 

replaced.

4.  Remove any silt or accumulated 

debris from the sump pit and 

surrounding area.

5.  Locate the EWP10 in an ideal 

position in the sump pit. The 

ideal position is approximately 

2” from the bottom of the sump 

pit and located so that it does 

not interfere with any part of the 

existing sump pump.

6.  Method 1 Installation: 

(Figure 1) Cut and dry-fit rigid 

PVC pipe to the discharge of the 

water powered back-up pump.  

Cement all fittings and discharge 

pipe after all pipe has been cut 

and dry-fit together.

     The 

 discharge 

line installation will vary depending on 

individual circumstances. Using sound 

plumbing practices, route the discharge 

pipe to an exterior wall by the shortest 

path. Keep turns to a minimum because 

they reduce the flow output of the pump. 

The pipe that exits the building structure 

should be sealed and sloped downward 

so the water will not freeze in the pipe. 

Method 2 Installation: 

(Figure 2) Cut the existing main 

pump discharge line and cement 

a “T” or “Y” fitting.  Measure, 

cut and dry-fit the pipe required 

to connect the EWP10 to the 

installed “T” or “Y” fitting. 

Cement all fittings and pipe.

7.  Shut off the municipal water 

supply.  Install a rigid water 

supply line to the sump area.  

Include a shut-off valve in the 

supply line. Flush the supply line 

of all debris before installing the 

automatic valve.

8.  Connect the automatic valve 

assembly with brass vacuum 

breaker to the supply line. Is 

should be located about 6” above 

the basement floor or sump pit 

cover. The supply line needs to be 

supported.  

9.  Attach the hose coupling and 

washer to the brass vacuum 

breaker of the automatic valve 

assembly. 

10. Attach the “L” bracket to the 

automatic control valve using the 

two screws supplied.

11. Install the float rod by threading 

the two parts together.  Using 

the large coupler, secure the rod 

connection by threading the top 

screw to the top part and the 

bottom screw to the bottom part. 

12. Install a small coupler and the 

float to the float rod by inserting 

the float rod through the center 

of the float.  Insert a small coupler 

about ½” above the bottom of 

the float rod and tighten the 

fastener.  Tighten the first small 

coupler installed.

For parts, product & service information  

visit

 www.waynepumps.com

REMINDER: Keep your dated proof of purchase for warranty purposes! Attach it to this manual or file it for safe keeping.

Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain 

the product described. Protect yourself and others by observing all safety information. Failure to comply with 

instructions could result in personal injury and/or property damage! Retain instructions for future reference.