Atlantic PS3900 User manual

Instruction
Manual
1-877-80-PONDS
www.atlanticwatergardens.com
Skimmer Part No. PS3900
FilterFalls Part No. BF1600
Pump Vault Part No. PV1700
FastFalls Part No. SP1600

Table of Contents
Product Overview Page 3
WATER GARDENS
Determining Pond Volume Page 4
Determining Surface Area Page 4
Streambed Construction Page 5
Placement of FilterFalls and Skimmer Page 5
SKIMMER INSTALLATION
Excavating and Setting the PS3900 Page 6
Attaching the Liner Page 6
Attaching the Weir Door Page 7
Plumbing the PS3900 Page 8
FILTERFALLS INSTALLATION
Bulkhead Installation Page 8
Setting the BF1600 Page 8
Liner Attachment Page 9
POND-FREE
Eco-Blox vs. Gravel Page 10
Streambed Volume Page 10
Basin Volume Page 10
PUMP VAULT INSTALLATION
Excavating and setting the PV1700 (Waterfall) Page 11
Plumbing the PV1700 (Waterfall) Page 11
Excavating and setting the PV1700 (Fountain) Page 12
Plumbing the PV1700 (Fountain) Page 12
FASTFALLS INSTALLATION
Setting the SP1600 Page 13
Liner and Plumbing Attachment Page 13
Hiding the SP1600 Page 14
SKIMMER / PUMP VAULT ACCESSORIES
Triton Check Valve Page 15
AF1000 AutoFill Kit Page 16
Skimmer Overflow Page 16
2
This manual contains basic construction techniques and installation
instructions for Atlantic Oasis Series Pond and Pond-Free products.
For more in-depth information regarding water feature construction,
techniques and maintenance, please visit:
www.atlanticwatergardens.com/university/awguniversity.html

3
Removable
top grate
Media bag
Bottom grate
Dual Bio-Tech
filter mats
Support bar
1½” heavy-duty bulkhead
Solid lip and
molded inserts
One-piece
liner attachment
flange
FilterFalls
BF1600
Support bar
Matala®
filter mat
Stainless steel
framed debris
net
Cut-off step
fittings for
1-1/2” or
2” pipe
Super Flow weir
door
High density
polyethylene
enclosure
Sturdy
removable lid
Skimmer
PS3900
Internal baffles add
strength and diffuse
water flow
Raised front radius
retains natural
camouflage
One-piece design
eliminates any leak
due to ‘over pumping’
Liner flange and
molded inserts
ensure a secure
liner attachment
Installed 1 ½” FIPT
Spinweld®fitting
High density
polyethylene
enclosure
Sturdy inset lid
Cut-off step
fittings for 1 ½”
or 2” pipe
Recessed pockets
accept Triton
3-Way Diverter
Flat front panel
aids with Eco-Blox
installations
Pump Vault
PV1700
FastFalls
SP1600
back
back

POND VOLUME
It is important to calculate the estimated water volume before you begin construction,
and then re-calculate final water volume when your project is completed. Estimating
water volume pre-construction is a step that is often skipped by many homeowners
and contractors. A water garden with undersized filtration can prove to be a
maintenance nightmare.
TO DETERMINE POND VOLUME
Multiply (in feet) the average length x the average width x the average depth to find
cubic feet of pond volume. Multiply cubic feet x 7.48 = gallons
Water Gardens
LENGTH
WIDTH
DEPTH
4
SURFACE AREA
When using any pond skimmer it is important to keep the surface area (in square feet)
of the pond in mind. Upon start-up, the pump sends water from the bottom reservoir to
the top of the waterfall and/or streambed. The water must then fill, from top to bottom,
the waterfalls and streambed until it eventually re-enters the pond and the water levels
equalize. During water in transition process, the water level of the bottom reservoir is
continually dropping. If the streambed is built improperly, or is built too big, the water level
of the bottom reservoir could drop below the opening in the skimmer before the water
levels equalize. This would result in the pump running dry and starving for water.
This situation can be easily avoided by using the formula provided to calculate the surface
area of your pond. With that number, you can then determine the maximum surface area of
waterfalls and streambed that your pond can accomodate.
TO DETERMINE SURFACE FOOTAGE
Multiply (in feet) the average length x the average width = total square feet of the
pond surface area. Multiply the surface area of the pond x .5 = maximum surface
area for falls
10’
5’
3’3”
8’
Oasis Skimmer and FilterFalls can accomodate flow rates up to 3900 GPH
and filter ponds up to 1500 gallons in volume.
Figure 1.
Figure 2.
50sq ft x .5 = 25sq ft stream surface area
10’ x 5’ = 50sq ft pond surface area

5
PLACEMENT OF THE FILTERFALLS AND SKIMMER
Now that you have determined the size of the pond, waterfalls and filter system, it is time
to determine the placement of the components.
Whenever possible, it is best to position the Skimmer and FilterFalls directly across from
each other at opposite ends of the pond. This setup creates a current that pulls surface
debris into the Skimmer. If the Skimmer and FilterFalls are placed too close together, or the
pond has an unusual shape, dead areas can occur. These dead areas can be eliminated with
the use of multiple falls or multiple skimmers.
STREAMBED CONSTRUCTION
Using proper streambed construction techniques can limit the transitional water needed
to fill the streambed and enables the system to function optimally. Transitional water is
determined by the height that the weir rock extends above the liner at the spillway
opening. Maintaining the shortest distance possible between the top of the weir rock and
the liner is a crucial component to a properly functioning water garden. Figure 3 displays
two examples of proper construction techniques for minimal transitional water.
Figure 4 is an example of improper streambed construction. Stone, gravel and foam
can be combined to make a barrier and create a waterfall, but that barrier will never be
watertight. When the pump is turned off, the water will always drain down to the highest
point of the liner. Improper construction greatly increases the water in transition.
Figure 3.
Figure 4.
Top of liner
Top of water Transitional Water
Top of liner
Top of water Transitional Water
Top of liner
Top of water
Transitional
Water

WATER LEVEL
11 /4”
10” MIN
15”
6
Oasis Skimmer Installation
EXCAVATING AND SETTING THE PS3900
Prior to setting the skimmer you must first determine the surface level of the water in
the pond. Once you have this number you can excavate for the Skimmer. The excavation
should be a few inches wider and longer than the Skimmer body. The depth of excavation
for the PS3900 should be 15” below water level. Do not dig too deep. The skimmer
should be set on stable, compacted soil. In the case that you over-dig, be sure to compact
the soil thoroughly to prevent settling. The bottom of the hole should be level side-to-
side and front-to-back (Figure 5).
Place the skimmer enclosure into the excavated hole. Check the top of the enclosure to
make sure that it is level front-to-back and side-to-side. Check where your pre-determined
water level falls on the face of the skimmer enclosure. Water level should be 1¼” below
the top of the weir door opening.
Make sure that any unexcavated soil that is left in front of the Skimmer is at least 10”
below water level. This will ensure that there is enough room for the weir door to be
installed and function properly.
Before you go any further into the Skimmer installation, it is a good idea to place a few
stones inside the Skimmer enclosure to weigh it down and keep it from moving.
Prior to backfilling the enclosure, make sure the support bar is installed inside the
skimmer. The support bar must be in place for the enclosure to retain its shape during the
backfilling process. Loosely backfill the enclosure on all sides, lightly compacting as you
go. Do not over-compact the soil! Aggressive compaction may deform the enclosure and
cause components to fit improperly.
ATTACHING THE LINER
Hold the liner up against the face of the Skimmer, allowing a minimum of 2” to extend
above the top of the enclosure. Leave some excess slack in the liner below the weir
opening. This will help alleviate any future strain on the liner connection.
Make sure that the front surface of the Skimmer, and the back side of the liner, are clean
and free of debris. When you are satisfied with the position of the liner, clip it in place with
the provided spring clips. With a sharp razor knife, cut a hole in the liner for the weir door
using the hole in the face of the skimmer as a guide (Figure 6).
Figure 5.

7
ATTACHING THE WEIR DOOR
Unlatch the weir door and lower the door to its fully
open position. Insert the weir door assembly into the
Skimmer opening. With one hand push the bottom
of the weir door frame tight against the Skimmer
face. With the other hand gently push down on the
weir door latch until it clears the top of the opening.
Once it does, push the weir door assembly into the
Skimmer opening until the frame rests against the
face of the enclosure (Figure 7).
Line up the holes of the weir door frame with the
holes in the Skimmer face. Use a nail or awl to help
line up the holes and pierce the liner in the top
corners. Loosely fasten the top corners using two
of the supplied 1/4-20 machine screws and serrated
flange nuts. Next, install two screws in the bottom
corners of the weir door frame (Figure 8).
Once you have the weir door tacked at the corners
you can install the rest of the screws. Do not fully
tighten any screws until all of the screws have been
installed.
When you are finished, remove the spring clips and pull the liner away from the face
of the skimmer. Apply a consistent bead of Atlantic fish-safe silicone to the face of the
Skimmer along the centerline of the pre-drilled bolt holes. Once you are finished, you can
return the liner to its original position and replace the spring clips.
Use your fingers to hold the flange nut and a hand held screwdriver to tighten
the screws. The serrations on the flange nut will grab the plastic enclosure once it
makes contact, eliminating the need to use a wrench. Use caution when tightening
the screws. The screws need only be snug for the silicone to make a seal.
Figure 6.
Figure 7.
Figure 8.

8
PLUMBING THE PS3900
The PS3900 Skimmer has pump discharge
step fittings molded into each side of the
skimmer enclosure. The step fittings are
labeled for 1 ½” or 2” PVC pipe and have
cut lines molded in for each size (Figure 9).
Choose the step fitting on the side of the
skimmer that will be best suited to exit based
on this installation. Using a PVC saw or
standard hack saw, remove the end of the
step fitting (making sure to follow the molded
cut line) for the size pipe used for this water feature. Once completed, push one end of the
PVC supply line through the step fitting allowing approximately 10” of pipe to enter the
skimmer enclosure.
It is recommended that you install a TR215CV Triton Check Valve between the pump and the
supply line. This valve will prevent the FilterFalls from draining when the pump is off, which
keeps the beneficial bacteria alive and any debris that the FilterFalls has collected from back
flowing into your pond. Refer to the Triton Check Valve installation instructions on page 15
for further details.
A drill point is provided on both sides of your Oasis Skimmer to show the proper location
for the installation of an AF1000 Auto Fill valve (not included). See the Auto Fill installation
instructions on page 16 for more information. There is a drill-point provided on the back of
Oasis Skimmer to show the proper location and elevation for the installation of an overflow
(not included). See the Overflow installation instructions on page 16 for more information.
SETTING THE BF1600
It is always recommended that the FilterFalls be placed on undisturbed soil if possible. If
the installation calls for the FilterFalls to be elevated above existing grade, it is critical to
compact the area thoroughly. This will ensure that the FilterFalls will not settle out-of-level
over time. The use of cinder blocks or bricks under the falls to raise it up will help reduce
the chance of settling.
The FilterFalls can be placed adjacent to the pond edge to create a single waterfall, or
pulled away from the pond to create a streambed effect. Refer to the surface area
recommendations on page 4 to ensure that the streambed is properly sized.
Oasis FilterFalls Installation
BULKHEAD INSTALLATION
It is a good idea to install the bulkhead fitting and 1 ½” MTA (included) before setting
the BF1600. If 2” flexible PVC is being used for the supply line, replacing the 1 ½” HA1550
bulkhead with an Atlantic 2” HA2000 bulkhead (not included) is recommended.
Remove the retaining nut and plastic friction washer, leaving the rubber gasket on the
body of the bulkhead fitting. Note that the retaining nut is reverse threads. Turn clockwise
to loosen.
From the inside of the FilterFalls, insert the threaded end of the bulkhead into the hole on
the back of the enclosure. This will sandwich the rubber gasket between the flange of the
bulkhead and the inside wall of the enclosure. Slip the friction washer over the threaded
end of the bulkhead on the outside of the enclosure and install the retaining nut. Tighten
the retaining nut by hand and then finish off with a half turn from a wrench. Note that the
retaining nut is reverse threads. Turn counterclockwise to tighten.
Figure 9.

LINER ATTACHMENT
Atlantic FilterFalls come equipped with a solid spillway, threaded inserts and a ‘U’ shaped
wrap-around flange to provide the best possible seal.
Start by positioning the liner. Pull the liner up the face of the FilterFalls and drape a minimum
of 6” of liner over the top of the enclosure. Use the provided spring clips to temporarily hold
the liner in place (Figure 10). Leave some excess slack in the liner below the spillway. This will
help to alleviate any future strain on the liner connection. With the liner firmly in place, use a
sharp razor knife to cut the spillway opening in the liner using the inside of the spillway as a
guide (Figure 10).
9
Once you have placed the unit, make sure it is level from side to side and check the level
from front to back. FilterFalls should always be installed tilted slightly forward about ¼”.
This will ensure that water never leaks out over the back of the enclosure. When you are
finished positioning the unit, it is a good idea to weigh it down with a few rocks to keep it
in place while you backfill and make your liner and plumbing connections. Apply silicone on
the threads of the Male Thread Adaptor (MTA). Screw the MTA into the bulkhead until tight.
Use PVC Glue (not included) to glue the PVC flex hose into the MTA.
Figure 10.
Figure 11.
Remove the spring clips and pull the liner away from the face of the enclosure. Make sure
that the front of the FilterFalls and the back side of the liner are clean and free of debris.
Apply a consistent bead of Atlantic fish-safe silicone to the face of the FilterFalls along the
center line of the threaded inserts.
Return the liner to the face of the FilterFalls and hold it in place by attaching the spring clips
to the rolled lip on either side of the spillway (Figure 11).
Do not completely backfill the FilterFalls until all of your plumbing connections
are made and the liner has been attached.

10
STREAMBED VOLUME
Multiply (in feet) the average length x the average width x the average depth to find
cubic feet of streambed volume
2” DEEP = 0.16’
3” DEEP = 0.25’
4” DEEP = 0.33’
BASIN VOLUME
For Eco-Blox: Multiply the cubic feet of the streambed x 3 = cubic feet needed for the basin
Cubic feet ÷ 4.2 = the number of Eco-Blox
For Gravel: Multiply the cubic feet of the streambed x 9 = cubic feet needed for the basin
Cubic feet ÷19 = the number of tons of gravel
Tighten flange screws with a hand held screwdriver only. Over tightening the screws
could strip out the inserts or crack the liner flange. The screws need only to be snug
for the silicone to make a seal.
Attach the liner flange to the FilterFalls, starting with the center screw first, and then work
out toward the sides of the spillway. It may be necessary to first pierce the liner with a nail
or an awl before inserting the screw. Do not fully tighten any screws until all the screws have
been installed. Once completed, trim away any excess liner as needed.
ECO-BLOX vs. GRAVEL BASIN for a WATERFALL or STREAM
Eco-Blox basins consist of 10% Eco-Blox and 90% water. Gravel basins consist of 70% rock
and only 30% water. As a rule of thumb, your pond-free basin should hold three times
the amount of water as the waterfalls and streambeds above it. It is critical to calculate
the water volume that the basin can hold before you begin construction of the waterfalls
or streambed.
Why should the basin be three times the size of the stream? Upon start-up, the pump
sends water from the bottom reservoir to the top of the waterfall and/or streambed. The
water must then fill, from top to bottom, the waterfalls and streambed until it eventually
re-enters the basin and the water levels equalize. During this filling process, the water level
of the bottom reservoir is continually dropping.
If the streambed is built improperly, or is built too big, the water level of the bottom
reservoir may drop below the top of the pump before the water levels equalize. This would
result in the top of the pump being exposed to air. Pumps must be completely submersed
in water or they can overheat causing damage to the pump. Refer to the streambed
construction section on page 5 for more detail.
POND-FREE
Don’t forget that the thickness of your rocks will add extra depth to the water.
(e.g. if you have rocks 1” deep covering the bottom of your stream, be sure to
incorporate that 1” into your total depth)
Pond–free features exchange the open water of the pond for a gravel-topped excavation,
maximizing visual impact while minimizing headaches and maintenance. Typically, a pump
placed in a protective vault inside a lined reservoir continuously recirculates water over a
stream or waterfall. A bed of gravel hides the basin, vault and plumbing from view, leaving
only the stream and waterfall visible.

The PV1700 is Atlantic’s most compact, easy to install pump vault. The PV1700’s features
include an incredibly strong enclosure, recessed panels on the front that can accommodate
Triton 3-Way Diverters, cut lines on the back for 1½” and 2” pump discharges, and marked
drill points on the left and right sides for an Auto Fill.
11
EXCAVATING AND SETTING THE PV1700 for a WATERFALL or STREAM
Once you have determined the proper size basin for your project, begin by deciding the
placement of the vault. The vault should be placed away from the waterfall where the lid
can be accessed easily. The PV1700 flat panel will sit flush against the Eco-Blox, so that
water can enter the pump vault. The area where the pump vault will sit should be dug 22”
deep for the PV1700. When using Eco-Blox, the pump vault will recess lower than the
Eco-Blox (Figure A). The area for the Eco-Blox to sit should be dug 18” deep.
Oasis Pump Vault Installation
Figure A.
Once excavation is complete, install underlayment, pond liner, Eco-Blox and pump vault.
Backfill the space between the Eco-Blox and the excavation to lock them into place, either
outside the liner with sand or clean fill, or inside the liner with gravel ¾” or larger in
diameter. Top the liner and basin with ¾” or larger gravel or decorative stone. Smaller,
more decorative gravel, landscape glass, etc. can be used to cover the top of the basin,
provided a denser mesh is installed beneath the material.
PLUMBING THE PV1700 for a WATERFALL or STREAM
The PV1700 has pump discharge step fittings
molded into each side of the enclosure. The
step fittings are labeled for 1 ½” or 2” PVC pipe
and have cut lines molded in for each size
(Figure B). This allows the installer the flexibility
to exit out the left or right side. The flat panel
on the back is for an overflow. The two drill
points near the top of the left and right sides
are for the installation of an Auto Fill (See Auto
Fill and Overflow instructions on pg. 16).
Figure B.

12
EXCAVATING AND SETTING THE PUMP VAULT FOR A FOUNTAIN
The capacity of the basin will vary depending on the size, height and number of the
decorative fountain elements. For a general rule of thumb, make the basin at least twice
the width of the fountain piece or fountain pieces at their widest point. To capture the
splash from taller pieces or more aggressive flows, where added storage capacity isn’t
desired or needed, excavate a shallow 2-3” deep
bowl around the basin and extend the liner out
to at least twice the height of the decorative
elements (Figure C). This technique will
recapture as much water as possible with
minimum additional excavation. Consider
increasing the storage capacity by
incorporating Rainwater Harvesting into
your design. For further information see our
website www.atlanticwatergardens.com.
Once you have determined the
approximate size of the basin, lay
out the Eco-Blox and PV1700.
The PV1700 should be placed
away from the fountain piece
where the lid can be accessed
easily. Place the flat panel of the
PV1700 up against the Eco-Blox
so water can enter through the
ports. Tailor the excavation to the
shape of the Eco-Blox and PV1700 so the vertical walls of the basin will support the
outside walls of the Eco-Blox, leaving a few extra inches all of the way around to make
installation easier.
Dig the entire basin down to 17” below grade and carefully level the bottom of the
excavation. This depth ensures the plumbing fittings exit out on top of the Eco-Blox. Install
the underlayment and liner, then the Eco-Blox and PV1700.
Backfill the space between the Eco-Blox and the excavation to lock them into place, either
outside the liner with sand or clean fill, or inside the liner with gravel ¾” or larger in
diameter. Top the liner and basin with ¾” or larger gravel or decorative stone. Smaller,
more decorative gravel, landscape glass, etc. can be used to cover the top of the basin,
provided a denser mesh is installed beneath the material.
PLUMBING THE PV1700 FOR A FOUNTAIN
The recessed panels on the front right and left are designed to accommodate up to two
optional Triton 3-Way Diverters, to allow plumbing and individual valving of up to six
separately controlled decorative elements. To install, drill a 2 ¼” hole with a hole saw (not
included). The center point of the hole is marked on the panel.
The center raised area on the front of the PV1700 can be drilled for a single discharge
of up to 1 ½” PVC pipe. Your pipe size will determine the size of the hole to drill. The flat
panel on the back is designed to accommodate an overflow. The two drill points near the
top of the left and right sides are for the installation of an Auto Fill (See Auto Fill and
Overflow instructions on pg. 16).
Figure C.


13
SETTING THE SP1600
Place the Oasis FastFalls on a level bed of undisturbed soil if possible, to avoid settling. If
installing above existing grade, compact the area thoroughly. This critical step will ensure
that the FastFalls will not settle out of level over time. Blocks or bricks set on virgin soil can
also be used to raise the FastFalls while reducing the chance of settling.
Place the FastFalls right at the pond’s edge to create a single dramatic fall, or pull the
FastFalls back from the edge to create a stream. Leave plenty of liner around the FastFalls to
make it easy to camouflage with rock later.
To ensure a leak-proof installation, test
place the FastFalls in the desired
location and level it from side-to-side
and front-to-back. The closed design of
the FastFalls ensures that water will only
exit the unit over the spillway, so there is
no need to tilt the FastFalls forward.
When you are satisfied with the
placement of the FastFalls, remove
the unit and install the liner and
underlayment, being careful not to
disturb the level base. Place the
FastFalls on top of the liner in its original
position. Check the unit for level to
ensure that nothing has changed. Once
the FastFalls is level and positioned correctly, place a couple of large stones on top of the
FastFalls. This will ensure that the FastFalls does not move when backfilling and attaching
liner (Figure D).
Figure D.
Oasis FastFalls Installation
LINER AND PLUMBING ATTACHMENT
Hold the liner up against the flat panel on the back of the Oasis FastFalls enclosure. Leave
some excess slack in the liner below the spinweld. This will help alleviate any future strain on
the liner connection. Make sure the back surface of the FastFalls, and the back side of the
liner is clean and free of debris. Once you are satisfied with the position of the liner, lower it
down and prepare to apply the silicone sealant (Figure E).

Figure E.


Figure F.
14

Figure G.
HIDING THE OASIS FASTFALLS
Position rocks on either side of the Oasis
FastFalls, inside the liner (Figure D). Start
working the rock in and around the
front of the FastFalls, building up to
the lip of the FastFalls, which will
provide support for a lip rock. The
Fastfalls will support the weight of
gravel and rocks, stacked directly on
top of the unit. The FastFalls easily
supports the weight, so consider
covering the whole unit with a single
sizeable overhanging capstone, or
stack individual smaller stones and
gravel on top to completely conceal
the FastFalls (Figure G). For a ‘grown-in’ look, cover the FastFalls with soil and plant small
evergreens and perennials right on top. The raised lip will keep the gravel or soil from
washing into the water.
Apply silicone on the threads of the Male Thread Adaptor (MTA). Screw the MTA into the
spinweld until tight. Use PVC Glue (not included) to glue the PVC flex hose into the MTA.
Tighten flange screws with a hand held screwdriver only. Over tightening the
screws could strip out the inserts or crack the liner flange. The screws need only to
be snug for the silicone to make a seal.
Apply Atlantic’s Silicone Sealant in a continuous, consistent bead along the center of the
threaded inserts. Once completed, return the liner to its dry-fit position.
Attach the supplied flange to the FastFalls, starting with the top screw first, working around
the flange. If needed, use an awl or nail to pierce the liner before inserting the screws. Do
not fully tighten any screws until all of the screws have been installed. Once completed, trim
away the liner on the inside of the flange (Figure F).

15
MD1000 / 1250 / 1500 / 2000 B
TW1900 / 2400 / 3700 B
SH1450 / 2050 / 3600 E
PAF-20 / 25 3
A-05 3
TRITON CHECK VALVE
Locate the model number of the
TidalWave pump used for this
installation on the chart. The ‘perfect
cut’ reference mark is listed next
to the pump. If the corresponding
reference mark is a letter, then the
1 ½” threaded end of the discharge
pipe will be used. If the corresponding
reference mark is a number, then
the 2” threaded end of the
discharge pipe will be used.
Locate the correct reference mark for this installation on the discharge pipe. Using a hacksaw
or PVC saw, cut the pipe at this mark being careful to make a clean, square cut (Figure H).
Discard the end of the discharge pipe that will not be used.
Discharge Pipe
PS3900 & PV1700 Reference Chart
Skimmer/ Pump Vault Accessories
Use a small piece of sandpaper to smooth out the cut end of the discharge
pipe. Clean the 2” socket fitting on the bottom of the check valve and the
cut end of the discharge pipe with PVC cleaner/primer. Apply PVC glue and
insert the discharge pipe into the 2” socket fitting. Hold the discharge pipe
firmly in place for a few seconds, giving the glue time to set (Figure I).
Attach the Triton Check Valve to the TidalWave pump by threading the
discharge pipe into the pump discharge.
Place the TidalWave pump with installed Triton Check Valve into the PS3900 Skimmer.
Connect the outlet fitting of the Triton Check Valve to the PVC supply line that feeds the
waterfall using PVC glue and cleaner. For your convenience; 2” and 1 ½” outlet fittings are
supplied with the Triton Check Valve.
Complete installation by tightening the union nuts on the Triton Check Valve. Hand tighten
only. Do not use channel locks to tighten the union nuts.
If you have removed the outlet fitting from the check valve prior
to gluing the connection, make sure to slide the union nut onto the
supply pipe before gluing the socket fitting in place.
Figure H. Figure I.
MD, TW2 and SH Series pumps include fittings that convert the pump discharge to 1 ½”
female threads and are neccessary for proper attachment to the TR215CV.

16
AF1000 AUTO FILL KIT
Labeled drill points have been provided for
the proper Auto Fill location on either side of
the Oasis Skimmer and Pump Vault (Figure
K). It is a good idea to completely install the
pump, check valve assembly, and discharge
hose before you drill for the Auto Fill. This
will help you determine the best side of the
Skimmer or Pump Vault to place the Auto Fill
so that it has proper clearance on all sides.
Once you have determined the location of
the Auto Fill, drill a 7/8” hole using a spade bit
or hole saw. Insert the Auto Fill making sure
the gasket is on the inside of the enclosure
and the plastic retaining nut is on the outside.
Tighten the retaining nut until snug. Do not
over-tighten the retaining nut (Figure J).
Fittings to connect the Auto Fill to a garden
hose, ½” irrigation line, and ½” Sch40 PVC
are included in the kit. Wrap the ½” male
threads on the Auto Fill with thread
sealant and install the fitting of your choice.
Once water is supplied to the Auto Fill it will
maintain the set water level by automatically
adding water when the level drops. This level
can be adjusted by loosening the wing nut
and raising and lowering the height of the
Auto Fill float. Use the water line mark on
the weir door frame to help establish proper
water level.
OVERFLOW
A drill-point has been provided on the back
of the Oasis Skimmer and Pump Vault to show
the proper location and elevation to install
an Atlantic HA2000 bulkhead fitting for the
overflow (not included). See Figure K above
for drill-point location. This combination will
position the bottom of the overflow pipe
approximately 1” above recommended water level. (Note: If a HA2000 bulkhead is not
being used, the center point for the hole will have to be recalculated on site.)
Drill a 3” hole and install the bulkhead following the instructions on page 8. Install a 2”
MTA and connect the overflow pipe. Apply silicone on the threads of the Male Thread
Adaptor (MTA). Screw the MTA into the bulkhead until tight. Use PVC Glue (not included)
to glue the PVC flex hose into the MTA.
VALVE
GASKET
RETAINING
NUT
FITTING
OVERFLOW
PUMP DISCHARGE
AF1000 AUTO FILL
Figure J.
Figure K.
OVERFLOW
PUMP DISCHARGE
AF1000 AUTO FILL