HomeMy WebLinkAboutDWG 553-7L; CT 2022-0003; CARLSBAD BY THE SEA SUMMERHOUSE; 01-292.16 SPRINKLER HEADS
A. Sprinkler heads will be of the same size, type, and deliver the same rate of precipitation with
the radius of throw, pressure, and discharge.
B. Tree micro-bubblers with a radius of 2.5 feet will Include the following:
1. Anti-drain valve capable of holding 14 feet of water.
2. An integrated module in the base of the sprinkler body regulating pressure to 30 PSI.
3. Body Model Numbers -Potable water: Rain Bird 1806 SAM PRS
2.17 IDENTIFICATION TAG
A. Identification tags for electric control valves will be manufactured from hot stamped UV
stabilized Behr Desopan and include a hole for a zip-tie attachment.
B. Station identification tag: Black letters on yellow background with controller letter and valve
station number.
C. Model Numbers: Christy ID-MAX-Y1 or GPH GID-MAX
D. Special order tags from T. Christy Enterprises (800) 421-2677 or GPH (966) 582-9684
2.18 INLINE DRIP TUBING
A. Drip tubing:
1. 17mm low density, ultra-violet-resistant, linear polyethylene tubing with internal
pressure-compensating, self-cleaning, integral drippers spaced at 12 inches.
2. Discharge rate of 0.60 gallons per hour (GPH) between operating pressures of 7 to 70 psi
for each individual emitter.
3. The individual self-cleaning, pressure-compensating emitters will be welded to the inside of
the tubing wall.
4. Emitters wlll have a built-in check valve capable of holding 10 feet of water.
Model Numbers: Rain Bird XFSCV 0612
B. Barbed fittings:
1. Molded, ultra-violet-resistant, brown colored plastic with a nominal inside dimension (I.D.)
of 17 mm.
2. Minimum of two ridges or barbs per outlet.
3. Model Numbers: Rain Bird XFF series.
C. "Header Pipe" or non-pressure pipe connecting the rows of tubing will be Schedule 40 PVC
solvent weld per Section 2.2.
D. Drip filtration unit:
1. Basket style body and jar-top cap constructed of heavy-duty glass-filled, UV-resistant
polypropylene, with 150 PSI operating pressure rating.
2. Indicator incorporated into filter cap that changes color from green to red during operation
when the filter element requires cleaning.
3. 200 mesh filter stainless steel screen attached to a propylene frame serviceable for
cleaning purposes by unscrewing cap from filter body and removing filter element.
4. Normally-open in-line pressure regulating device, constructed of durable, UV resistant
non-corrosive material able to accommodate an inlet pressure rating of not less than 150
PSI, with preset outlet pressure of approximately 40 PSI.
5. Pressure regulating device allows full fiow with minimal pressure loss unless inlet pressure
is greater than preset level.
6. 1-inch MPT inlet and outlet connections.
7. Model: Rain Bird PRB-QKCHK-100.
E. Drip Flush valve:
1. 17mm barbed ball type isolation valve with manual operation
2. Model: Netafim TLSOV.
F. Drip air relief valve:
1. 112" MPT connected to dripline using a Netafim TL050FTEE barbed fitting.
2. Model: Netafim TLAVRV.
G. Staples:
1. 9-gauge x 6-inch long galvanized steel.
2. Model; Rain Bird TDS-6 series or equal.
2.19 POINT SOURCE DRIP EMITTER
A. Emitter:
1. 112-inch FPT x diffuser cap body with orange, self-sealing screen.
2. Pressure compensating from 10-50 PSI with fixed flow rate of2.0 gph.
3. Check valve with ability to hold 15 feet of water.
4. Model: GPH Irrigation GPSTV2.
2.20 MISCELLANEOUS IRRIGATION EQUIPMENT
A. Refer to the Drawings for sizes and types of miscellaneous irrigation equipment.
B. All miscellaneous irrigation equipment will be as specified or approved equal.
PART 3 -EXECUTION
3.1 GENERAL INSTALLATION REQUIREMENTS
A. Before work commences, hold a conference with Owner, and Irrigation designer to discuss
general details of the work.
B. Verify dimensions and grades at the job site before work commences.
C. During the progress of the work, a competent superintendent and any assistants necessary
will be on site, all satisfactory to the Owner. The superintendent will not be changed, except
with consent of Owner, unless that person proves unsatisfactory and ceases to be employed.
The superintendent will represent Contractor in its absence and all directions given to the
superintendent will be as binding as if given to Contractor.
D. All work indicated or noted on Drawings will be provided whether specifically mentioned in the
Specifications.
E. If there are ambiguities between Drawings and Specifications, and specific interpretation or
clarification is not issued prior to bidding, the interpretation or clarification will be made only by
Owner, and Contractor will comply with the decisions. In the event the installation contradicts
the directions given, the installation will be corrected by the Contractor at no additional cost to
Owner.
F. The layout of sprinkler lines shown on Drawings is diagrammatic only. The location of
sprinkler equipment is contingent upon and subject to integration with all other underground
utilities. Employ all data contained in the Contract Documents and verify this information at the
construction site to confirm how it relates to the installation.
C: \DRAWING Fll.F.S\TIT!E SHEETS\XXXX.DWG 7/20/2019
G. Coordinate the installation of all sprinkler materials, including pipe, with the landscape
Drawings to avoid conflict with the trees, shrubs, or other planting.
H. Do not proceed with the installation of the sprinkler system when ii is apparent that
obstructions or grade differences exist or if conflicts in construction details, legend, or specific
notes are discovered. All such obstructions, conflicts, or discrepancies will be brought to the
attention of Owner.
I. Replace, or repair to the satisfaction of Owner, all existing paving disturbed during this work.
New paving will be the same type, strength, texture, finish, and be equal in every way to the
material removed.
J. Owner reserves the right to make temporary repairs as necessary to keep equipment in
operating condition without voiding Contractor's guarantee or relieving Contractor of
responsibilities during the guarantee.
K. All sprinkler heads, inline drip irrigation, and point source drip irrigation will require installation
of anti-drain devices to prevent low head drainage.
3.2 OBSERVATION OF SITE CONDITIONS
A. All scaled dimensions are approximate. The Contractor will check and verify all size
dimensions and receive approval from the Owner's Authorized Representative prior to
proceeding with work under this Section.
B. Exercise extreme care in excavating and working near existing utilities. The Contractor will be
responsible for damages to utilities, which are caused their operations or neglect. Check
existing utilities drawings for existing utility locations and notify 811 Dig Alert/Underground
Service Alert of Southern California for all utilities to be identified prior to start of work. Method
of utility marking to be approved by the Owners authorized representative.
C. Coordinate installation of sprinkler irrigation materials including pipe, so there will be no
interference with utilities or other construction or difficulty in planting trees, shrubs, and ground
covers.
D. Check all grades to ensure that work may proceed with the irrigation system installation.
3.3 PREPARATION
A. Physical Layout:
1. Prior to installation, slake out all routing of pressure supply lines, valve locations, and
sprinkler head locations.
2. Locate valves to maximize clearance from trees.
3. Layouts will be reviewed by the Irrigation Designer and Owners Authorized Representative
prior to installation.
B. Water Supply:
1. The irrigation system will be connected to water supply point(s) of connection as indicated
on the Drawings.
2. Connections will be made at the approximate localion(s) shown on the Drawings. The
Contractor is responsible for minor changes caused by actual site conditions.
C. Electrical Supply:
1. Electrical connections automatic controllers will be made per the Private Electric plans.
2. Connections will be made at the approximate location(s) shown on the Drawings. The
Contractor is responsible for minor changes caused by actual site conditions.
3.4 POWER CONNECTION FOR AUTOMATIC CONTROLLER
A. 110-volt power and final hook-up to the automatic controller will be provided per separate
private electrical plans.
B. Coordinate with the Owners Electrical Contractor prior to setting the controller concrete base
pad and provide requested energize date for each controller.
3.5 AUTOMATIC CONTROLLER ASSEMBLY
A. Install per manufacturers instructions.
B. Ground controller:
1. Use a 5/8-inch x 8-foot rod or two (2) 4-inch wide x 8-foot long ground plate.
2. Perform Dig Alert I Underground Service Alert prior to installing ground rod
3. Obtain Owners authorization to install ground rods.
4. Grounding instrument (rod or plate) is to be 10-feet clear of the controller and perpendicular
to the wire path where possible.
5. Install #6 AWG ground wire from backplate chassis to the grounding instrument.
6. Ground resistance is 25 Ohms maximum
7. Ground controller per NEC, current edition.
3.6 TRENCHING
A. Dig trenches straight and support pipe continuously on bottom of trench. Lay pipe to an even
grade. Trenching excavation will follow layout indicated on the Drawings and as noted.
B. Provide the minimum cover for the following:
1. Pressure mainline 2-112 inch and smaller: 24 inches
2. Non-pressure lateral pipe:
3. Master valve conduit:
4. Flow sensor conduit:
12inches
18 inches
18 inches
3.7 TRENCHING AND BACKFILL UNDER PAVING
A. Trenches located under areas where paving, asphaltic concrete, or concrete will be installed,
will be backfilled with sand (a layer two inches below the pipe and six inches above the pipe)
and compacted in layers to 95% compaction, using manual or mechanical tamping devices.
B. Trenches for piping will be compacted to equal the compaction of the existing adjacent
undisturbed soil and will be left in a finn unyielding condition. All trenches will be left fiush with
the adjoining grade.
C. Set in place, cap, and pressure test all piping under paving prior to the paving work.
D. Piping under existing walks will be done by jacking or boring.
E. Where cutting or breaking of sidewalks and I or concrete is necessary, replace in kind with no
additional cost to the Owner. Permission to cut or break sidewalks and I or concrete will be
obtained from the Owner's Authorized Representative.
F. No hydraulic driving will be permitted under concrete paving.
G. Provide for a minimum cover to the top or pipe for the following:
1. Mainline and wire sleeve under roadways: 36 inches
2. Lateral sleeve under roadways: 36 inches
3. Mainline and wire sleeve under sidewalk equal to mainline trenching depth
4. Lateral sleeve under sidewalk 12 inches
3.8 PLASTIC PIPE
A. Install plastic pipe in accordance with manufacturer's recommendations.
B. Prepare all welded joints with primer prior to applying solvent cement.
C. Partially center-load pipe in trenches to prevent arching and shifting when pressurized.
D. Attach pipe identification tape directly to pipe where color-impregnated and stenciled pipe is
not utilized.
E. Perform backfilling when pipe Is cool.
F. Pipe can be cooled by operating the system for a short lime before backfill, or by backfilling in
the early part of the morning.
3.9 CONDUIT AND SLEEVES
A. Pipe and wire sleeves within the public Right of Way will be considered existing and shown on
the Drawings for reference. For all other installations, provide materials and coordinate
conduit and sleeve installation with other trades as required to facilitate construction sequence.
B. Conduit: Furnish and install conduit where control wires pass under or through walls, walks
and paving. Conduits to be of adequate slze to accommodate retrieval for repair of wiring or
minimum 2-inch diameter, whichever is larger.
C. Sleeving: Install sleeves for all pipes passing through or under walks and paving as shown on
the Drawings. Sleeving to be 2x the diameter of pipe.
D. Sleeves are to extend 12 inches beyond edges of walls and I or pavement
3.10 WIRING
A. Provide 24-inch spare cable in pull boxes.
3.11 LINE CLEARANCE
A. All lines will have a minimum horizontal clearance of four inches from each other and twelve
inches from lines of other trades.
B. Lines of other trades will be installed in a separate trench.
C. Parallel lines will not be installed directly over one another.
3.12 PIPE ASSEMBLY
A. Routing of sprinkler irrigation pipe as indicated on the Drawings is diagrammatic. Install lines
(and various assemblies) in a manner to conform to the details per the Drawings.
B. Do not install multiple valves on PVC pressure mainline. Provide each valve with its own
outlet fitting.
C. Install valve assemblies specified herein in accordance with respective detail. In absence of
detail drawings or Specifications pertaining to specific items required to complete work,
perform such work in accordance with best standard practice with prior approval of Owners
Authorized Representative.
D. PVC pipe and fittings will be thoroughly cleaned of dirt, dust, and moisture before installation.
E. PVC pipe to be deburred prior to connection to fittings.
F. cleaned of any burrs created during cutting. Installation and solvent welding methods will be
as recommended by the pipe and fitting manufacturer.
G. On PVC to metal connections, the work the metal connections first.
H. Use Tefion tape, or approved equal, on all threaded PVC to PVC and on all threaded PVC to
metal joints. Light wrench pressure is all that is required. Where threaded PVC connections
are required, use Schedule 80 PVC TOE nipples.
I. Flush all pressure mainline free of debris prior to installation of any valve equipment. If
installation of pressure mainline is performed in phased segments, flush pipe at completion of
each segment.
3.13 EXISTING TREES
A. Where it is necessary to excavate adjacent to existing trees, use all possible care to avoid
injury to trees and tree roots.
B. Excavation in areas where two (2) inch and larger roots occur will be done by hand.
C. All roots 2-inches and larger in diameter, except directly in the path of pipe or conduit, will be
tunneled under and will be heavily wrapped with burlap to prevent scarring or excessive drying.
D. Where a ditching machine is run close to trees having roots smaller than 2-inches in diameter,
the wall of the trench adjacent to the tree will be hand trimmed, making clean cuts through.
E. Roots one 1-inch and larger in diameter will be painted with two coats of Tree Seal, or equal.
F. Trenches adjacent to trees should be closed within twenty-four (24) hours. Where this is not
possible, the side of the trench adjacent to the tree will be kept shaded with burlap or canvas.
3.14 SETTING AND CURING
A. Before moving or handling pipe, allow welded joints to set per the manufacturer's
recommendations or as shown below (whichever is longer):
1. 40° F -60° F:
a. 112 Inch to 1-114 inch: 5 minutes
b. 1-112 inch to 2 inch: 10 minutes
c. 2-1/2 inch to 8 inch: 2 hours
2. 60° F • 100° F:
a. 112 inch to 1-114 inch: 2 minutes
b. 1-1/2 inch to 2 inch:
c. 2-112 inch to 8 inch:
5 minutes
30 minutes
B. Allow welded joints to cure before filling with water per the manufacturer's recommendations or
as shown below (whichever is longer):
1. 40° F -60° F up to 160 PSI:
a. 1/2 inch to 1-114 inch: 20 minutes
b. 1-112 inch to 2 inch: 45 minutes
c. 2-112 inch to B inch: 4 hours
2. 60° F -100° F up to 160 PSI:
a. 112 inch to 1-114 inch: 15 minutes
b. 1-112 inch to 2 inch: 30 minutes
c. 2-112 inch to 8 inch: 90 minutes
3.15 MAINLINE PRESSURE TESTING:
1. Testing of pressure mainlines will occur prior to installation of the elec
quick coupler, and isolation valves.
tric control, air relief,
2. Request the presence of the Owner's Authorized Representative and the City of Carlsbad
in writing at least 4B hours in advance of testing.
3. Furnish necessary force pump and all other test equipment.
4. Test all pressure mainlines under a hydrostatic pressure of 150 PSI and prove watertight.
Center load pipe with pipe manufacturer markings facing up and pipe joints exposed during
the pressure test.
5. All piping under paved areas will be tested under hydrostatic pressure of 150 PSI and
proven watertight prior to paving.
6. Sustain pressure in lines for not less than four hours. If leaks develop, replace joints and
repeat the test until entire system is proven watertight.
7. Hydrostatic tests will be done in the presence of the Owners Authorized Representative
and the City of Carlsbad. No pipe will be backfilled until it has been observed, tested, and
approved in writing.
3.16 BACKFILLING
A. The trenches will not be backfilled until all required tests are performed.
B. Trenches will be carefully backfilled with the excavated materials approved for backfilling,
consisting of earth, loam, sandy clay, sand, or other approved materials, free from large clods
of earth or stones.
C. Backfill will be mechanically compacted in landscaped areas to a dry density equal to adjacent
undisturbed soil in planting areas. Backfill will conform to adjacent grades without dips,
sunken areas, humps or other surface irregularities.
D. A fine granular material backfill will be initially placed above and below all pipe. Foreign matter
larger than 112-inch in size will not be permitted in the Initial backfill.
E. Flooding of trenches will be permitted only with approval of the Owner's Authorized
Representative.
F. If settlement occurs and necessitates adjustments in pipe, valves, sprinkler heads, lawn,
plantings, or other installed work, the required adjustments will be made without cost to the
owner.
3.17 ELECTRIC CONTROL VALVES
A. Install each electric control valve in a separate valve box.
B. Install where shown on the Drawings and provide at least 24-inches between adjacent valve
boxes.
C. Heat Brand the controller letter and valve designation on each valve box lid with 1-inch tall
letters as follows:
1. Standard valves: ''RCV Controller Letter+ Station#" i.e. "RCV A1".
2. Tree valves: "RCV Controller Letter+ Station#" with 'TREE" below i.e. "RCV A 1"
'TREE"
D. Install control valve and adjust as follows:
1. Prior to installation, adjust fiow control stem clockwise until valve is fully closed
2. After installation, activate valve and adjust pressure regulator 10 PSI higher than desired
pressure.
3. Adjust fiow control stem counter-clockwise until desired pressure is achieved.
4. Do not fully open valve stem per manufacturer recommendations.
5. Adjust pressure on one valve per controller at a time.
3.18 FLUSHING OF SYSTEM
A. After all new sprinkler pipelines and risers are in place and connected, all necessary diversion
work has been completed, and prior to installation of sprinkler heads or inline drip tubing, open
the control valves and flush out non-pressure lateral piping, swing joints, and drip header
piping.
B. Sprinkler heads will be installed only after system flushing has been accomplished to the
satisfaction of the Owners Authorized Representative.
3.19 SPRINKLER HEADS
A. Install the sprinkler heads as designated on the Drawings. Sprinkler heads to be inslalled in
this work will be equivalent in all respects to those itemized.
B. Adjust check valve tension to prevent low head drainage prior to installation of sprinkler heads.
C. Set the sprinkler heads perpendicular to finish grade of the irrigated area unless otherwise
designated on the plans.
D. Flush lateral piping after installation of sprinkler bodies and before installation of nozzles.
E. Adjust coverage to eliminate overspray onto hardscape, walls, sidewalks, roadways, etc. with
the nozzle screw adjustment on spray sprinklers and rotors
3.20 SUBSURFACE INLINE IRRIGATION DRIP TUBING
A. Install inline drip tubing as shown on the Drawings.
B. Space tubing in 18-inch o.c. parallel rows with equidistant offsets from adjacent paving.
Tubing spacing is NOT dependent on plant size, mass density, nor spacing. The tubing is
spaced to equally wet the entire soil surface in the planter to a consistent depth of application.
C. Install tubing to allow a row on two sides of any plant for equal distribution of water.
D. Install tubing on grade below mulch layer.
E. Install "Header' connections from non-pressure PVC to tubing per the detail drawings. Install
"Header" connections to each row of tubing as indicated in the drawings.
F. Install 17mm barbed fittings on all changes in direction. The maximum radius of tubing bends
is 3-feet.
G. Trim tubing around trees using barbed fittings per the detail drawings.
H. Secure tubing to finish grade with drip staples 12 inches from the "Header" connection, at each
barbed fitting, change in direction, and four feet on center.
I. Install a drip flush at each end of the system and maintain 3 feet clear of sidewalk or paving
intersections, driveways, and driveway aprons.
J. Install a flush valve on all planters larger than 100 square feet.
K. Install a drip indicator using a 12-inch pop up sprinkler assembly with yellow nozzle cap
adjacent to each flush valve per the detail drawings.
L. Install an air I vacuum relief valve at the high point of the system on a perpendicular line of
blank tubing that connects each row of tubing in the planter. Field locate the high point only
after finish grading, planting, and backfilling have occurred.
M. Remove the drip filter cap and basket and flush the valve assembly of debris prior to initial
operation of the drip valve.
N. Open all drip flush valves and fiush the tubing free of all debris on initial operation of the
system.
0. Drip tubing systems will be observed for equal spacing and two-row coverage of all plant
material prior to backfilling and mulch installation. Failure to have tubing observed will result in
the requirement to expose the system during the start of maintenance review.
THJS DOCUMENT CONTAINS ELECTRONIC SIGNATURES ~ClTY COMMENT -R3, 01/23/2026 APPLIED 8Y ThE DES!ON PROFESSIONAL OF RECORD,
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3.21 TEMPORARY REPAIRS
A. The Owner reserves the right to make temporary repairs as necessary to keep the irrigation
system equipment in operating condition. The exercise of this right by the Owner will not
relieve the Contractor of his responsibilities under the terms of the guarantee.
3.22 FIELD QUALITY CONTROL
A. Flush and adjust all sprinkler heads for optimum performance and to prevent overspray onto
walks, roadways, and buildings.
B. Make any adjustments to sprinklers, nozzle sizes, and pattern prior to planting.
C. Adjust height of sprinklers above finish grade within ten days after notification by the Owner as
follows:
1. Turf: 1/2-inch
2. Shrubs: 1-inch
3. Sports turf Rotors: Flush to finish grade
D. All sprinkler heads will be set perpendicular to finish grade unless otherwise designated on the
Drawings.
E. After system completion, perform a coverage test in the presence of the Owner's Authorized
Representative to determine if the water coverage for planting areas Is complete and
adequate.
F. Furnish all materials and perform all work required to correct any inadequacies of coverage
due to deviations from the Drawings, or where the system has been willfully installed as
indicated on the Drawings when it is obviously inadequate, without bringing this to the attention
of the Owner's Authorized Representative. This test will be accomplished before planting.
3.23 MAINTENANCE
A. The irrigation system will be fully automated for a period of seven days prior to planting.
B. The Owner's Authorized Representative reserves the right to waive or shorten the operation
period.
3.24 CLEAN-UP
A. Clean up will be made as each portion of work progresses. Refuse and excess dirt will be
removed from the site, all walks and paving will be broomed or washed down, and any
damage occurring to the work of others will be repaired to original conditions.
3.25 SITE OBSERVATION SCHEDULE
A. Notify the Owner's Authorized Representative in advance for the following observation
meetings, according to the time indicated:
1. Pre-Job Conference: 7 days
2. Pressure supply line installation and testing: 48 hours
3. Automatic controller installation:
4. Point of connection installation:
5. Coverage test:
48 hours
48 hours
48 hours
6. Final site observations: 7 days
B. When site observations have been conducted by a party other than the Owner's Authorized
Representative, show evidence in writing of when and by whom these observations were
made.
C. Pre-walk irrigation system to ensure compliance with plans and specifications prior to walking
the irrigation system with Owners Authorized Representative.
3.26 TURNOVER PROCEDURE
A. Show evidence to the Owner's Authorized Representative that the Owner has received all
accessories, as-builts, controller charts, equipment, and certifications as required before final
site observation can occur.
B. Operate each system for the Owners Authorized Representative at the Start of Maintenance
period. Any items deemed not acceptable or per the approved Drawings and Specifications
will be reworked to the complete satisfaction of the Owners Authorized Representative.
C. The Owner's authorized representative will provide a written report detailing the items that
need correction prior to acceptance. The report or "punch list" will be distributed to the
following:
1. Owner
2. Landscape Contractor
3. General Contractor
4. Landscape Architect
D. The irrigation system will be re-observed Section 3.26(8) at the following intended timeline:
1. Start of Maintenance Walk
2. 60-day punch list walk
3. Final turnover walk
END OF SECTION
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LANDSCAPE IMPROVEMENT PLANS FOR:
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