Zodiac Nature2 Express User manual

For In-ground and Aboveground Pools
Important Safety Information
Please read this manual prior to installation.
Nature2Express is designed to sanitize in-ground and
aboveground swimming pools of up to 25,000 gallons. If
your pool is larger than 25,000 gallons do not install this unit but
ask your pool professional about a Nature2“G” or “A” model
vessel system.
ELECTRICAL HAZARD
• Severeshockorinjurywilllikelyoccurasaresultofadrillordrillcordcomingin
contactwithwater.Neverallowelectricdrillordrillcordtocomeincontactwithwater.
OnlyplugdrillintoaClassA(5MilliampereTrip)protectedGroundFaultCircuit
Interrupter(GFCI)inaccordancewiththeNationalElectricalCodeSection680.
Pleaseseeyourdrillowner’smanualforfurthersafetyprecautions.
EQUIPMENT UNDER PRESSURE
• AlwaysturnpumpoffpriortoinstallingorchangingNature2cartridge.Yourpump/
filtersystemisoperatedunderpressureandthepressuremustbereleasedbefore
youbeginwork.Pleaseseeyourpump/filterowner’smanualforfurtherinstructions.
PREVENT CHILD DROWNING
• Donotletanyone,especiallysmallchildren,sit,step,leanorclimbonanyequipment
installedaspartofyourpool’soperationalsystem.Locatethecomponentsofyour
operationalsystematleast3feetfromthepoolsochildrencannotusetheequipment
toaccessthepoolandbeinjuredordrown.
IMPORTANT: Pool Owner, save this manual. Builders, leave this manual with pool owner.
Vessel Installation
and Operating Manual
ATTENTION Failure to heed the following warnings can result
in permanent injury, electrocution or drowning.
!

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Thank you for purchasing a Nature2Express pool sanitizer. Please read through
the entire manual before installing your new unit.
Installation
Nature2Express easily installs on your pool’s return line. You will need to use a
cordless or electric drill to install the vessel.
Nature2Express components: (1) winterizing cap, (2) outer housing, (3) 2”
clamp assembly w/gasket (I/G only), (4) 1-1/2” clamp assembly w/gasket, (5)
flow diverter, (6) Express cartridge, (7) hole saw, (8) nuts and bolts, (9) silicone
tube, (10) rigid PVC adapter (A/G only).
1. Decide where to install the Nature2vessel. It must be installed:
• After the filter on the main return to the pool.
• Before or after the heater (downstream of solar heating systems).
• Before any chemical dispenser or the discharge of any off-line chemical
dispenser. IMPORTANT: Install a check valve before chlorinators
to isolate the Nature2vessel from possible backflow of highly
chlorinated water.
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1
8
9
10
2
3
6
5
4
Chlorinator
Pump
Filter
Nature2
Heater
Check
Valve
Return Line
Intake Line

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2. Locate the return line. You will need an area of approximately 6” to
install your Nature2Express.
3. Turn OFF the pool pump. Your pump/filter system is operated
under pressure. The pressure must be released before you
begin work. Please see your pump/filter owner’s manual for
further instructions.
4. Close any valves. If your pool filtration equipment is below the water
level of the pool, you will either need to close the return valve or
use winterizing plugs at the skimmer and return fittings to prevent
excessive water loss. Contact your authorized Nature2 dealer or
Zodiac Customer Service at 800-822-7933 for more information.
5. Choose the clamp assembly, (1-1/2” or 2”) that fits your return line
(Nature2Express for aboveground pools comes with the 1-1/2”
clamp assembly only).
6. Apply a small bead of silicone lubricant around the saddle
clamp gasket.
For Aboveground Pools
Aboveground pools are often plumbed with flexible or corrugated
pipe. These systems require use of the rigid PVC adapter included
with Nature2Express for aboveground pools. The adapter fits most
filtration systems.
• Disconnect the return hose and fitting from the filter.
• Wrap tape around threads of Nature2PVC adapter.
• Thread adapter into the outlet port in the filter.

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7. Install your Nature2Express on schedule 40 PVC pipe only.
Failure to heed this warning can result in equipment failure.
Position the clamp assembly on the pipe, with the arrow pointing in
the direction of the flow of water and hand tighten the nuts and bolts.
Tighten nuts an additional 1/4 turn using a wrench or socket. Do
not over-tighten.
Note: The 2 halves of the 1-1/2” clamp assembly will not touch when
properly assembled. A gap of roughly 1/16” is normal.
8. Insert the hole saw into a drill. Using the hole in the top half of the
clamp assembly as a guide, cut a hole in the pipe.

5
9. Insert the flow diverter into the clamp assembly and snap it into place.
Snap the outer housing onto the clamp assembly.
10. Spread silicone around the o-ring just above cartridge threads.
11. Thread the Nature2Express cartridge into the clamp assembly.
Set the date reminder.
12. Open any valves that you closed and turn on your pool pump to verify
that there are no leaks. The small pellets inside the cartridge dome
provide evidence of water flow through your Nature2Express.
If a leak is present: turn off pump, close valves, and remove Nature2
Express and assembly. Remove any PVC burrs, replace clamp
assembly without over-tightening, and re-install cartridge.
13. Refer to your Nature2Cartridge Owner’s Manual for cartridge start
up procedures.

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Operation and Maintenance
Filtration and Circulation
Follow the manufacturer’s directions for keeping the circulating pump in
good working order and operate it at least six hours a day. Consult your
Nature2dealer for optimum run times.
Check pool filter periodically and clean as recommended by
the manufacturer.
Replacing The Cartridge
Use the month indicator ring on the top of the unit to identify the date
on which the cartridge should be replaced. A Nature2Express cartridge
lasts for six months.
To replace the cartridge:
1. Shut off your pool’s pump and filter.
2. Close any valves between the filter and pool to prevent draining
the pool.
3. Unscrew and remove the old cartridge.
4. Screw the new cartridge into housing and clamp assembly.
5. Rotate the install/replace ring located on the top of the cartridge to
the appropriate month.
6. Open any valves that were closed to isolate the Nature2Express.
7. Restart your pool’s pump. Check for leaks and fix any leaking
fittings.
8. Follow the start up procedures in the Nature2Express Cartridge
Owner’s Manual.
Winterizing
As part of the pool winterizing process, if you
close your pool, remove the Nature2Express
cartridge and discard it in the household trash.
Snap the winterizing cap on the outer housing
to keep out debris.
Install a new Nature2Express cartridge when
you re-open your swimming pool. Refer to your
Nature2Cartridge Owner’s Manual for cartridge start up procedures.

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Problem What to look for: Treatment
 NoflowtoNature2Express. Dirtyfilter(oneindication: Cleanorbackwashfilter
  pressureis8-10psihigher sooperatingpressure
  thannormal). isalwayswithin7psiof
   anewfilter.
 Leakingaroundvessel. Drippingfromclamparea. 1.Re-lubegasketand
   cartridgeo-ring.
   2.Makesurenuts&bolts
   aretightenedevenlyand
   notover-tightened.
Troubleshooting
Use the guide below to correct common pool issues. For further
assistance, consult your Nature2 dealer or call us at 1-800-822-7933.

Nature2Express Limited Warranty
The limited warranties contained within this document are the only warranties
given with your Nature2Express and supercede any prior warranties. All
other warranties, expressed or implied, including the implied warranty
of merchantability or the implied warranty of fitness for a particular
purpose are hereby disclaimed. Our sole obligation under this warranty, and
the purchaser’s sole remedy, is limited to repair or replacement of the Nature2
Express housing, or one of its parts. The Nature2warranty applies to the original
owner only.
THE LIMITED WARRANTIES OF THE NATURE2EXPRESS HOUSING /
CLAMP ASSEMBLY:
The Nature2Express housing you have purchased is warranted to be free of
defects and materials and workmanship for a period of one year from the date
of purchase.
EXCLUSIONS FROM WARRANTY
Nature2Express is designed for use on in-ground and aboveground pools from
5,000 to 25,000 gallons. If the unit is used in any other application, the warranty
is void, and the purchaser and/or pool owner releases the manufacturer from any
and all claims related to the use of the Nature2Express.
This warranty does not cover problems arising in whole or in part from
purchaser’s negligence, misuse or abuse, improper maintenance or storage,
accident, improper installation, improper application, failure to follow all
appropriate safety precautions, acts of God, abnormal weather conditions,
damage from plants or animals, and improper use of chemicals.
This warranty specifically excludes all incidental or consequential damages,
except where state law requires them to be paid. This warranty gives you
specific rights. You may have other rights that vary from state to state.
TO SUBMIT A CLAIM
Report claims to Zodiac Pool Systems, Inc. by calling 1-800-822-7933. Only
the original purchaser may submit a claim under this limited warranty. All claims
must be accompanied by an original purchase receipt.
Zodiac Pool Systems, Inc.
2620CommerceWay
Vista,CA92081
Tel:800-822-7933
Fax:877-327-1403
www.zodiacpoolcare.com
Nature2is a registered trademark of Zodiac Pool Systems, Inc.
©2007 Zodiac Pool Systems, Inc. All rights reserved. TL-2625 6/07