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This
"Do - it - Yourself" section is courtesy of TORO™ |
An
automatic sprinkler system gives you the landscape you've always
wanted.
A thicker, greener lawn. Beautiful gardens. It adds beauty and
value to your home while saving time and water. How many times
have you forgotten to water your lawn, then over watered -- only
to end up with brown spots and muddy puddles? Like many homeowners,
you could be using up to 50% more water than your landscape needs,
which isn't good for your lawn or your pocketbook. The solution
isn't to use more water, but to water more precisely. An automatic
sprinkler system can give you a healthy, green lawn -- and more
free time to enjoy the beautiful results.
To
use Toro's interactive " Do - It - Yourself " web site,
click
here.
CHECK
LOCAL CODES AND PERMITS
Call
your local water company or the proper municipal authority for
information on building codes or permits required for the installation
of underground sprinkler systems. They can also tell you about
local codes for the backflow prevention required to protect your
water supply from contamination, as well as advise on where to
locate the backflow device in the system. In addition, check with
your local utility companies before you dig to identify any buried
cables or natural gas lines.
Warning
Personal injury may result from trenching
over buried power lines or gas lines. Before digging or trenching,
check with your local utility companies to identify any buried
cables, pipe or gas lines.
When
designing your system, we suggest you use the following planning
tools:
- Pencil
- Scratch
paper
- Drawing
compass
- 50'
tape measure straight edge or rulerline marking paint for
marking trenches
-
Flags for marking sprinkler locations
-
Flow & Pressure Gauge. If you do not own a flow &
pressure gauge, ask your local Home Center if they have one
in their rental center. Gather Required Information.
Each
small square on the graph should represent one square foot of
actual property or use the scales provided.
Using your tape measure, outline and measure your property accurately
according to scale, laying out the locations of your home, sidewalks,
grass, etc.
CONSIDER THESE WHEN DRAWING YOUR PROPERTY:
- Outline
your house, garage and other structures.
- Show
walks, drives, slabs, patios and surfaces.
- Locate
and identify trees and major obstacles.
- From
the outside of your house, measure outward to define your
perimeters.
- Identify
any slopes on your property.
- Locate
ground cover, grass, flower beds and landscaping.
- Identify
the size and location of the water meter (or pump) and main
line.
- Re-check
your measurements at several different points.
- Make
sure your drawing accurately indicates the true dimensions.
MEASURE
YOUR HOME'S WATER CAPACITY AND WORKING PRESSURE
Water
pressure can vary from home to home, even on the same street.
So it's important that you take a measurement at your own home.
If you push your system beyond its capacity, the danger is that
it can create water hammer and costly damage to your piping system.
Also, if you exceed the pressure or water flow (GPM) you have
available, your system will not function or work efficiently.
The following are two reliable ways of determining your home's
water capacity. We recommend using the flow and pressure gauge
method because it's fast and easy.
DETERMINE THE DIAMETER OF THE WATER SUPPLY LINE
Call your local water company or measure your supply line (the
pipe leading from the water meter to your house).
- Locate
the outside faucet that is closest to your water supply
line (we'll call this Faucet 1).
- Locate
another faucet on your house and attach a pressure gauge
(we'll call this Faucet 2). Open Faucet 2 all the way
and record the static water pressure below.
- With
Faucet 1 open all the way, check the pressure reading
on the gauge at Faucet 2. If it is less than 40 PSI, turn
down the water flow from Faucet 1 until the reading reaches
40 PSI. If it is greater than 40 PSI, record the dynamic
pressure reading below and go to step 4.
- Place
a five-gallon bucket under Faucet 1 and time how long
it takes to fill it. Use the chart below to convert to
gallons per minute (GPM). This test tells you what your
home's water capacity is measured in GPM at 40 PSI.
- Repeat
this procedure at 45 PSI and 50 PSI. Record these three
results on the chart below.
Time
to Fill Bucket |
Gallons
Per Minute |
15
Seconds |
20
GPM |
20
Seconds |
15
GPM |
25
Seconds |
12
GPM |
30
Seconds |
10
GPM |
40
Seconds |
7.5
GPM |
This
is how much water is available with a working pressure of
40 PSI or the higher reading that you recorded. (Minimum operating
pressure for most sprinklers is 35 PSI.)
If
you use a different size bucket, time how long it takes to
fill it. Convert this to gallons per minute using the following
formula:
60
÷ Seconds x Gallons
For
example: A two-gallon bucket that fills in 15 seconds means
the available flow is 8 gallons per minute.
60
÷ 15 x 2 = 8 GPM (gallons per minute)
Note:
In freezing areas, poly pipe should be used downstream of zone
valves.
Sprinkler
Placement Planning
Place
sprinklers within each area on your plan, one area at a time,
using sprinklers with a greater radius for larger areas.
Stay
within the allowable spacing range (radius) of sprinkler selected,
and remember to space them head-to-head. Spacing sprinklers too
far apart will produce dry spots. Always place sprinklers in a
way to avoid spraying the side of your house, walls, fences, etc.
Also, minimize spraying onto sidewalks, driveways and streets.
Place
half-circle sprinklers on sides and borders; quarter-circle sprinklers
in corners; and full-circle sprinklers in the middle.
HEAD-TO-HEAD SPACING
For
proper coverage, place sprinklers so that the spray from one sprinkler
reaches the next. For windy areas (winds regularly stronger than
8 mph), place sprinklers closer -- at 90% of spray radius or more
depending on local wind direction and speed
RULE OF THUMB
Determine
spacing by sprinkler radius. For example, if you are using Toro
570(tm) Series sprinklers with a radius of 15', place your sprinklers
no more than 15' apart; or closer together if you are in a windy
area
To make sure you have proper head-to-head spacing, use a compass
to draw circles, semi-circles and quarter-circles representing
sprinkler coverage.
Square
Spacing
This
layout is best suited for well-defined, geometric spaces such
as small, square or rectangle-shaped yards, or sites divided by
sidewalks and other paved areas.
Special-Pattern
Spacing
You
can use Toro 570(tm) Series special-pattern sprinklers for end-strip
and center-strip watering, as shown in the diagram below. Center-strip
sprinklers spray in two directions, end-strip sprinklers spray
in one direction only. Both are designed for precise watering
of small, rectangular areas.
NOTE:
When special pattern nozzles are unavailable, use the Toro Adjustable
Pattern Nozzle.
Odd-Shaped
Areas
After
placing your sprinklers in large, rectangular areas, you can now
place sprinklers in small, non-rectangular areas. Although each
site is different, following are some handy guidelines.
- Choose
the area on the perimeter with the smallest radius.
- Place
a sprinkler with a small radius at that point.
- Place
sprinklers along the border starting from that area.
- Adjust
the radius of each sprinkler according to the size and shape
of the area.
- If
coverage is incomplete, adjust sprinkler location.
- When
you have defined and placed all of your sprinklers, use a compass
to double check your layout
1.
SPRINKLERS
No
matter how simple or complex the landscape, Toro has the sprinkler
family to cover every angle. Select sprinklers with a greater
spray radius for large areas so you can use fewer sprinklers and
valves, which means you also use less pipe with less trenching
and fewer timer zones.
570 Series Fixed-Spray Sprinklers
Radius: 5'-15'
Toro
570(tm) Series fixed-spray sprinklers produce a tight, constant
fan of water that's ideal for small lawn, shrub and ground cover
areas. Pop-up models pop up above grasses and disappear when not
in use. Shrub sprays are mounted above foliage to water ground
cover and shrubs. True matched precipitation rates and color coding
by radius are just a few of the exciting features of 570(tm) matched
precipitation rate spray nozzles. Toro has more than 35 different
interchangeable nozzles to choose from to give you maximum flexibility.
FLOOD BUBBLER
Radius: 0'-2'
Use
the Toro Flood Bubbler for slow, deep watering around trees, shrubs,
vegetable and flower gardens. Fully adjustable from off to 5 GPM.
MULTISTREAM SPRINKLER
Radius: 18'-27'
Toro's
unique gear-driven, MultiStream sprinklers are recognized by their
graceful "fingers of water" that slowly rotate to effectively
penetrate medium-sized lawns, shrubs and ground cover -- especially
on slopes
SINGLESTREAM SPRINKLER
Radius: 34'-48'
The
Toro SingleStream Sprinkler is perfect for medium-to-large lawn
areas. Its gear-driven design provides years of smooth, quiet
operation.
SIMPLESET(tm) LAWN SPRINKLER
Radius:
27'-47'
The
Toro SimpleSet Lawn Sprinkler offers full and part-circle operation
in a single unit. This closed-case rotary sprinkler is ideal for
large lawn areas and it's simple to set!
UNIVERSAL IMPACT SPRINKLERS
Radius:
25'-45'
Toro
Universal Impact Sprinklers are perfect for medium-to-large lawn
areas. These impacts are adjustable from 20°-340° for
part circle operation or 360° for full circle operation. Toro
Impact Sprinklers are heavy-duty and will offer years of reliable
operation.
2.VALVES
There
are two types of valves: anti-siphon and in-line. Please check
your local codes to determine which is appropriate in your area.
3.DRIP
PRODUCTS
Save
time, save money and save water with Toro Blue Stripe irrigation
products.
4.
TIMERS
When
selecting a timer, there are two things to consider--number of
zones (valves) and number of programs. It's important to choose
a timer that can adapt to your growing needs. The additional programs
allow you to water the different areas of your landscape (lawn,
shrubs, flower beds) separately.
5.FUNNY
PIPE
Funny
Pipe is a high-strength poly tubing that solves tough sprinkler
installation & replacement problems. Put simply, Funny Pipe
acts as a flexible extension cord between sprinkler line and sprinkler
head, allowing you to easily position sprinklers where you need
them, even in hard-to-reach areas
One of the most useful and time-saving sprinkler installation
aids is Toro Funny Pipe.
Whether you are installing a new system or replacing an old sprinkler
head, Toro Funny Pipe can make your job quicker and easier.
COUNT
YOUR ZONES
Determine
the number of valves that you will need, based on the number of
zones you have designed.
Locate
Your Valves On The Plan
We
recommend grouping the valves. For example, one valve location
is needed to operate front yard zones, and one to operate the
backyard and/or side-yard zones.
Locate
the first set of valves in a convenient spot near the main water
connection. A good location is where the service line enters your
house. Also, place valves next to walks or in planters for easier
access.
The
number of zones used on your automatic timer should match or exceed
the number of zones in your system (plan for potential expansion).
LAY
OUT YOUR PIPE
Draw these connecting pipes on your grid layout and follow these
rules:
- Use
as many straight runs as possible.
- Try
to avoid turns, which result in loss of pressure.
- Avoid
runs under sidewalks and driveways whenever possible.
- Make
connections perpendicular to each other.
- NOTE:
You can include more than one pipe in a trench. Depending on
local codes and zone GPM , consider using 1" Schedule 40
PVC pipe upstream of control valves and at least 3/4" Class
200 PVC pipe or 3/4" poly pipe downstream.
DETERMINE
WHERE TO INSTALL YOUR TIMER
Install
the timer inside your garage, or on an outside wall near a 120
VAC outlet. If you install the timer outside, be sure to mount
it in a weather-resistant timer cabinet such as the one available
from Toro. Toro also offers an expandable outdoor timer, specially
designed to be installed outdoors. Check local electrical codes
for connection to outside plugs.
Place
zone or valve wires in the same trenches as the pipe. Remember
that valves will be wired to the timer, so place valve wires where
they are easily accessible.
Toro
recommends 18-gauge solid, multi-strand, direct-burial wire to
connect valves to sprinkler timers. You will need one wire per
zone, plus the common wire. This eight-zone system requires nine
wires. Be sure to waterproof all of your connections using grease
caps
Check Local Codes And Permits
Call
your water company or the proper municipal authority to find out
about any building codes or permits required for the installation
of underground sprinkler systems. They can tell you about local
codes for backflow prevention to protect your household water
supply from contamination. They can also advise you on where in
the system it should be located. In addition, check with your
local utility companies before digging to identify any buried
cables or natural gas lines.
Mark Your Sprinklers, Valves and Trenches
Use
Toro flags to indicate sprinkler locations according to your design.
Use line-marking spray paint to mark the lines along the area
where you'll trench and install pipe. Check your worksheet to
make sure you mark the lines accurately. You will be digging your
trenches along these lines.
Alert
Before digging any trenches, you must have all underground utilities
marked to avoid any damage. Call your local underground locator
service or the city for information.
MAIN
AND LATERAL LINE TRENCHING
The
main line is the line that runs from your service line to your
valve manifolds. Lateral lines run from the valve manifolds to
the sprinkler heads.
TRENCHING BY HAND
To
soften the soil, water the ground approximately two days before
you dig. Dig trenches 8" to 12" deep or per local codes
below the frost line in freezing climates. Put sod on one side
of the trench and soil on the other.
TRENCHING
WITH A TRENCHER
Trenching
machines are an easier, faster alternative to digging with a shovel.
They can be rented by the hour, day or week, usually from a lawn
supply store or rental equipment dealer. The person you rent from
can show you how to operate the machine properly and safely. Trenchers
should not be used to dig through ground cover, flower beds, on
steep slopes or near buildings. Be sure to verify all underground
utilities before trenching.
GOING
UNDER OBSTACLES
To
tunnel under brick and concrete walks, attach a piece of Schedule
40 PVC pipe to a hose with a hose-to-pipe adapter. Cap the end
with a PVC cap and drill a 1/8" hole in the end of the cap.
Point the end of the pipe to where you want to tunnel. Turn on
the water and push the pipe under the concrete. The force of water
will blast away the soil in front of it to form a tunnel. Tunneling
requires care to avoid damage to walks and driveways.
INSTALL THE SPRINKLER SYSTEM MAIN LINE
Attach
your sprinkler system main line to the service line. Run it along
the bottom of the trench from the house to the first set of valves
and if required, to the second set. Place your valve wire under
the pipe whenever possible.
TIPS ON WORKING WITH DIFFERENT PIPES
PVC
Pipe
Cut
pipe with a PVC pipe cutter.
Brush on a primer to clean the pipe surface and the inside of
the fitting.
Brush glue on the outside end of the pipe and lightly inside the
fitting.
Slip the pipe into the fitting and give it a quarter turn.
Hold in place for about 15 seconds so the glue can set.
Wipe off excess glue with a rag.
NOTE:
Wait at least one hour before running water through the system.
(Check manufacturer's recommendation).
POLY
PIPE
Cut
pipe with a PVC pipe cutter.
Slip a stainless-steel clamp over the end of the pipe.
Insert the barbed fitting into the end of the poly pipe, past
the barbs.
Slide the clamp over the barbs of the fitting.
Tighten the clamp.
Save time with no sawing, drilling or gluing - use the Toro Self-Tapping
Saddle for poly pipe (80-100 PSI). Available at your local home
center.
NOTE: To relax poly pipe, expose it to sunlight. Never expose
poly pipe to open flame.
Do
not use poly pipe as the connecting pipe between the service line
and the control valves. Surge pressure may rupture the poly pipe.
Be sure to check local codes for correct type of pipe to use.
BUILD VALVE MANIFOLDS
A
group of valves is called a manifold. We recommend grouping the
control valves -- for example, one control valve location to operate
front yard zones, and one to operate backyard and/or side yard
zones. Use flags to mark the location of the valves, as indicated
on your worksheet.
ANTI-SIPHON VALVE INSTALLATION
Anti-siphon valves are always installed above ground. With an
anti-siphon valve, dig out an area large enough to accommodate
your inlet and outlet pipes.
IN-LINE VALVE INSTALLATION
In-line valves are installed below ground. Protect valves below
ground by sheltering them in a valve box. Dig out the area where
below-ground valves are to be installed. Install the valve box
at or near grade level. When you buy a valve box, be sure to find
out how many valves fit in each box so you can buy the correct
amount. In some cases, you will need more than one valve box per
manifold
INSTALL LATERAL DOWNSTREAM PIPE
Start
from the valves and move outward, laying the connecting pipe along
the bottom of the trench. At each flag, install an appropriate
fitting for sprinkler attachment. We recommend that you use Toro
Funny Pipe(R) for all your sprinkler head installations.
FLUSH
THE SYSTEM TO CLEAR DEBRIS
After
the pipe has been connected and the glue has dried (PVC pipe only),
turn on the water, open valves one zone at a time and flush until
the water runs clear.
NOTE:
Don't backfill your trenches until your final system operation
check is complete.
NOTE: PVC pipe is shown in these illustrations. However, in areas
where freezing occurs, poly pipe may be used downstream of valves
instead of PVC. Always check local codes for proper pipe recommendations
and before installing backflow prevention devices.
INSTALL
YOUR SPRINKLERS ZONE-BY-ZONE
Install
one sprinkler zone at a time, using Toro Funny Pipe(R). Remember
to refer to your planning worksheet.
1.Placing
a sprinkler in a trench as a guide, measure from the connecting
pipe fitting to the bottom of the sprinkler and cut a length of
Funny Pipe to fit. Place sprinklers at least 3" from sidewalks,
curbs and 6" from fences and buildings.
2.Install
the appropriate Funny Pipe elbow into the sprinkler and into the
PVC or poly pipe fitting.
3.Connect
one end of Funny Pipe to the sprinkler and the other end to the
connecting pipe fitting.
NOTE:
Do not use more than 4' of Toro Funny Pipe with each sprinkler
head.
4.Position
the sprinkler in the trench so that the top of the sprinkler is
flush with ground level. Stabilize the sprinkler with soil without
filling the entire trench.
5.Verify
that the sprinkler is straight for optimum performance
INSTALL
YOUR TIMER
1. Install the timer in your garage or another convenient place.
If an outdoor location is desired, plan to use an outdoor cabinet
to protect the timer against the effects of weather. Make sure
an adequate power supply is available. Toro timers require only
a standard outlet (see instructions included with the timer for
details).
2.
Run wires along the trench, underneath the pipe and from the valves
to the system timer.
3.
Connect the valves to the timer.
Take
one wire from each valve and connect them to a common wire (for
ease of identification, use the white wire as the common).
At the timer, connect the common wire to the common terminal on
the timer.
Take the other wire from each valve and connect them to the timer
terminals in sequence.
4. Plug in the timer.
NOTE:
All outdoor connections and splices must be waterproofed.
CONNECTING A PUMP START RELAY FOR A WELL, TANK OR POND
CAUTION:
When installing with an electric timer:
1.
The Automatic Pump Starter should be mounted at least 5 feet away
from the timer.
2.
The timer should be at least 12 feet away from the pump.
3.
The pump should be on a separate power source than that of the
timer (the pump is a high-power user).
IF
THESE STEPS ARE NOT TAKEN, TIMER MALFUNCTIONS MAY OCCUR!
CHECK YOUR SYSTEM OPERATION, ZONE-BY-ZONE
1.
Slowly turn on the water and manually open the control valve.
2.
Adjust the sprinklers to ensure proper coverage (see sprinkler
installation instructions for details).
3.
If your coverage is incomplete, follow the steps below:
- Make
sure the control valve and shut-off valve are fully open.
- Turn
off any water being used in the house (washers, showers, faucets,
etc.).
- Fine-tune
sprinkler spray patterns to match your coverage area.
- If
coverage is still not complete, go back and check your system
layout against the plans.
- When
you see that the coverage is satisfactory, fill in the trench.
Tips
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