[Ord. No. 07-110 §1, 8-14-2007]
A.
A public
or semi-public swimming pool or spa shall be constructed of concrete
or other structurally rigid material that is equivalent in strength
and durability to concrete, except that a public or semi-public spa
may be constructed of fiberglass or acrylic.
B.
A surface
within a public or semi-public swimming pool or spa intended to provide
footing for users shall have a slip-resistant surface. The roughness
or irregularity of the surface shall not cause injury or discomfort
to users' feet during normal use.
C.
The
materials and construction of a public or semi-public swimming pool
shall be sound, durable and, where required, waterproof. The pool
shall be constructed of materials that are rigid, non-toxic, smooth,
free from cracks, easily cleanable and finished in white, pastel or
other light colors. The color, pattern or finish of the interior of
a public or semi-public swimming pool or spa shall not obscure objects,
surfaces within the swimming pool or spa, debris, sediment or algae.
Corners shall be rounded. Pool linings, specifically plastic and similar
linings, and finishes not totally bonded to the pool sides and bottom
are prohibited.
[Ord. No. 07-110 §1, 8-14-2007]
A.
A public
or semi-public swimming pool or spa may be any shape except that the
designer shall shape a public or semi-public swimming pool or spa
to minimize hazards to users and provide adequate circulation of swimming
pool or spa water.
B.
There
shall be no protrusions, extensions and means of entanglement or other
obstructions in a public or semi-public swimming pool or spa that
may cause entrapment of or injury to the user. This Subsection does
not prohibit water features such as water fountains, slides and water
play equipment or water volleyball and basketball nets.
C.
Where
a racing lane terminates in an aquatic center used for competitive
racing, the wall shall be plumbed to a minimum depth of five (5) feet
below the waterline. Below the five (5) foot depth, the wall shall
be radiused to join the floor. This Subsection does not pertain to
lanes that are used for general lap swimming.
D.
The
minimum average width of a semi-public pool shall be fourteen (14)
feet. The average width shall be calculated by dividing the surface
area by the total length of the pool as noted in Appendix B.
E.
Coping
or cantilevered deck may project from a swimming pool or spa wall
to provide a handhold for users. The coping or deck shall be rounded,
have a slip-resistant surface and shall not exceed three and one-half
(3½) inches in thickness. The overhang of the coping or deck
shall not exceed two (2) inches or be less than one (1) inch. All
corners created by coping or cantilevered deck shall be rounded in
both the vertical and horizontal dimensions to eliminate sharp corners.
F.
Floors.
1.
The slope of the floor of a public or semi-public swimming pool,
from the end wall in the shallow area towards the deep area to the
point of the first (1st) slope change, shall be uniform and shall
not exceed one (1) foot of fall in ten (10) feet. The floor slope
in a public or semi-public spa shall not exceed one (1) foot of fall
in ten (10) feet.
2.
The floor slope of a public or semi-public swimming pool, from the
point of the first (1st) slope change to the deepest part of the swimming
pool, shall not exceed one (1) foot of fall in three (3) feet. For
public or semi-public swimming pools, the depth of the swimming pool
at the point of the first (1st) slope change shall be a minimum of
five (5) feet.
3.
All portions of a swimming pool or spa floor shall slope towards
a main drain.
4.
The transitional radius where the floor of a public or semi-public
swimming pool joins a wall shall comply with all the following:
a.
The center of the radius shall be no less than three (3) feet below
the water line in the deep area or two (2) feet below the water line
in the shallow area,
b.
The radius shall be tangent at the point where the radius meets the
wall or floor, and
c.
The radius shall be equal to or greater than the depth of the swimming
pool minus the vertical wall depth measured from the water line minus
three (3) inches.
[Ord. No. 07-110 §1, 8-14-2007]
The construction and operation of fill and draw pools is prohibited.
[Ord. No. 07-110 §1, 8-14-2007]
A.
General. The water recirculation system, consisting primarily
of piping, pumps, filters, water conditioning and disinfecting equipment,
together with other standard accessory equipment, shall be adequate
to clarify and disinfect the entire contents of the pool within six
(6) hours or less. Water withdrawn shall not be returned to the pool
unless it has been filtered and otherwise treated in an approved manner
except that water may be withdrawn from a swimming pool for a water
slide or a water feature without being filtered or disinfected as
approved by the department.
B.
The
water recirculation system shall be designed to provide a minimum
of four (4) turnovers of the pool volume per day. Pools that are less
than one thousand (1,000) square feet at fitness centers shall be
required to provide eight (8) turnovers per day.
C.
The
water recirculation system shall be adequate to filter and disinfect
the entire contents of the pool within six (6) hours or less. Bypassing
chemical feeders or other similar devices may be exempted from this
requirement with the approval of the department.
D.
The
water recirculation system shall operate continuously.
[Ord. No. 07-110 §1, 8-14-2007]
A.
Piping
systems shall be:
1.
Designed to carry the required quantity of water at a velocity of
not more than ten (10) feet per second when located on the discharge
side of a pump, except for copper discharge piping where the velocity
shall not exceed eight (8) feet per second and not more than six (6)
feet per second when located on the suction side of a pump.
2.
Of sufficient strength to withstand one hundred fifty percent (150%)
of normal operating pressures.
3.
Made of non-toxic materials.
4.
Reasonably resistant to corrosion under conditions of operation.
5.
Installed so that pipe and fittings, which pass through the pool
structure, shall not project in a manner which is hazardous to users
of the facility.
6.
Comply with the sizes and flow rates shown in the following table
unless accompanied by an approved hydraulic design.
|
MAXIMUM FLOW RATES (C=140) SCHEDULE 40 PVC
| |||||||
|---|---|---|---|---|---|---|---|
|
Pipe Size
|
1¼ inches
|
1½ inches
|
2 inches
|
2½ inches
|
3 inches
|
4 inches
|
6 inches
|
|
GPM pressure side
|
25
|
60
|
90
|
140
|
220
|
350
|
800
|
|
GPM pressure side, copper
|
20
|
48
|
72
|
96
|
176
|
280
|
640
|
|
GPM suction side
|
15
|
35
|
50
|
80
|
140
|
220
|
450
|
7.
Plastic water circulation piping shall comply with American National
Standards Institute/NSF, International Standard Number 14 "Plastics
Piping System Components and Related Materials", NSF International,
which is incorporated by reference.
8.
A licensed contractor shall conduct an induced static hydraulic pressure
test of the water circulation system piping at twenty-five (25) pounds
per square inch for at least thirty (30) minutes. The pressure test
shall be performed before the deck is poured. Pressure in the water
circulation system piping shall be maintained during the deck pour.
9.
Piping systems shall be identified by name tags, labels or appropriate
colors painted or located at conspicuous points.
[Ord. No. 07-110 §1, 8-14-2007]
The total dynamic head of the recirculation system shall be
calculated. In lieu of calculating the total dynamic head, the department
may allow the following table to be used:
|
DISTANCE FROM THE MAIN DRAIN TO THE PUMP
|
TOTAL DYNAMIC HEAD (TDH)
|
|---|---|
|
1 foot to 25 feet
|
55
|
|
26 feet to 50 feet
|
60
|
|
51 feet to 75 feet
|
65
|
|
76 feet to 100 feet
|
70
|
|
101 feet to 125 feet
|
75
|
|
126 feet to 150 feet
|
80
|
|
Beyond 150 feet
|
Calculations are required
|
[Ord. No. 07-110 §1, 8-14-2007]
A.
A pump and motor shall be provided for each water circulation system. The pump shall be sized to meet but not to exceed the flow rate required for filtering against the total head developed by the complete water circulation system. The pump shall be sized to comply with the turnover rates prescribed in Chapter 233, Articles VI—IX.
B.
Pumps
and motors shall be readily and easily accessible for inspection,
maintenance and repair. When the pump is below the water line, valves
shall be installed on permanently connected suction and return lines.
The valves shall be readily and easily accessible for maintenance
and removal for any of the circulation components.
C.
Each
motor shall have an open, dripproof enclosure. Each motor shall be
constructed electrically and mechanically to perform satisfactorily
and safely under the conditions of load in the environment normally
encountered in swimming pool or spa installations. Each motor shall
be capable of operating the pump under full load with a voltage variation
of plus or minus ten percent (±10%) from the nameplate rating.
Each motor shall have thermal or current overload protection to provide
locked rotor and running protection. Thermal or current overload protection
may be built into the motor or in the line starter.
D.
The
pump shall be equipped with an emergency shut-off switch that is located
within the swimming pool or spa enclosure to cut off power to the
water circulation system if someone is entrapped on a main drain or
suction outlet.
E.
The
emergency shut-off switch must be clearly labeled.
[Ord. No. 07-110 §1, 8-14-2007]
Pumps that take suction prior to filtration shall include a
removable strainer located upstream from the pump to prevent solids,
debris, hair, lint, etc., from reaching the pump and filters. Strainers
shall be of corrosion-resistant material, with openings having a total
area equal to four (4) times the area of the recirculation pump suction
pipe.
[Ord. No. 07-110 §1, 8-14-2007]
A.
A vacuum
cleaning system shall be provided for public and semi-public aquatic
units with the exception of hydrotherapy pools.
B.
Vacuum
outlets shall be provided with covers which automatically close and
automatically latch and can only be opened with the use of a tool.
The covers must be securely closed and latched when the pool is in
use.
C.
The
cleaning system provided shall not create a hazard or interfere with
the operation or use of the pool. In integral systems, connections
shall be provided in sufficient numbers and located in the pool walls
at least ten (10) inches below the water line. In addition, automatic
or self-cleaning systems may be installed as approved by the department.
[Ord. No. 07-110 §1, 8-14-2007]
Adjustable pool wall inlets shall be provided on all pools.
Inlets shall be of sufficient number, properly designed, sized and
installed to produce uniform circulation throughout the pool. There
shall be a minimum of six (6) inlets, spaced not more than fifteen
(15) feet apart as measured along the pool periphery. At least one
(1) inlet shall be located within five (5) feet of each corner and
in each step alcove. Inlets shall be on a closed loop piping system.
Bottom returns shall be flush with the pool bottom or of such design
as to prevent injury to bathers. Bottom returns will be considered
to have an area of influence described by a radius of fifteen (15)
feet. Public or semi-public spas with three (3) or more return inlets
shall be on a closed loop piping system.
[Ord. No. 07-110 §1, 8-14-2007]
A.
Pools
shall be equipped with at least two (2) main drains located in the
deepest portion that are separated by a minimum of three (3) feet
and that are constructed to prevent suction entrapment under all operating
conditions. Each drain shall be covered by an anti-vortex cover or
an approved grate that has a minimum diagonal measurement of twenty-four
(24) inches, which is not readily removable by bathers and has safe
openings of at least four (4) times the area of the drain pipe.
B.
Drains
shall be spaced at intervals of not greater than one (1) each twenty
(20) feet of pool width in the deepest portion and not more than fifteen
(15) feet from each side wall.
C.
A minimum
of two (2) suction outlets shall be provided for each pump in a suction
outlet system for a public or semi-public pool or spa. The suction
outlets shall be separated by a minimum of three (3) feet or located
on two (2) different planes (i.e., one (1) suction outlet on the bottom
and one (1) on a vertical wall or one (1) suction outlet each on two
(2) separate vertical walls) as long as the three (3) foot separation
is always maintained. The suction outlets shall be plumbed to draw
water through them simultaneously through common line to the pump.
Suction outlets shall be plumbed to eliminate the possibility of entrapping
suction and be equipped with an approved anti-vortex cover.
D.
The
total velocity of water through grate openings of the drain shall
not exceed one and one-half (1½) feet per second.
E.
No
check valve may be installed between a suction outlet and a pump.
F.
Main
drain outlet grates shall be flat and flush with the surrounding area
except that main drain grates and fittings in vinyl liner and fiberglass
pools shall not extend more than three-eighths (×C;) inches
above the pool floor.
[Ord. No. 07-110 §1, 8-14-2007]
All aquatic centers shall be equipped with a flow meter that
indicates the rate of backwash through the filter. The flow meter
shall be installed on a straight section of pipe in accordance with
the manufacturer's specifications in a location where it can be read
easily. The flow meter shall measure the rate of flow through the
filter in gallons per minute and shall be accurate to within five
percent (5%) under all conditions of flow. The flow meter shall have
an indicator with a range of at least one hundred fifty percent (150%)
of the normal flow rate.
[Ord. No. 07-110 §1, 8-14-2007]
Pressure filter systems shall be equipped with a sight glass
installed on the waste discharge pipe.
[Ord. No. 07-110 §1, 8-14-2007]
Pressure-type filters shall be equipped with a means to release
internal pressure. Each pressure filter shall be equipped with an
air relief piping system connected at an accessible point near the
crown. Automatic air relief systems may be used instead of manual
systems. The design of a filter with an automatic air relief system
as its principal means of air release shall include lids that provide
a slow and safe release of pressure. The design of a separation tank
used in conjunction with any filter tank shall include a manual means
of air release or a lid which provides a slow and safe release of
pressure as it is opened.
[Ord. No. 07-110 §1, 8-14-2007]
Filters shall be designed, located and constructed to permit
removal of filter manhole covers or heads for inspection purposes
and replacement or repair of the filter elements or media. No filter
or filtration system shall be installed beneath the surface of the
ground or within any enclosure without adequate provision of access
for inspection and maintenance.
[Ord. No. 07-110 §1, 8-14-2007]
The rate of filtration in high-rate sand filters shall not exceed
an equivalent of twenty (20) gallons per minute per square foot. Sufficient
surface area of filter media shall be provided to achieve this rate.
[Ord. No. 07-110 §1, 8-14-2007]
The rate of filtration of diatomaceous earth filters shall not
exceed two (2) gallons per minute per square foot of effective surface
area.
[Ord. No. 07-110 §1, 8-14-2007]
The rate of filtration of cartridge filters shall not exceed
0.375 gallons per minute per square foot.
[Ord. No. 07-110 §1, 8-14-2007]
Aquatic center filters shall comply with American National Standards
Institute/NSF International Standard Number 50 "Circulation System
Components and Related Materials for Swimming Pools, Spas/Hot Tubs",
NSF International. Filters shall be designed, located and constructed
to permit removal of filter manhole covers or heads for inspection,
replacement or repair of filter elements or filter media. No filtration
system shall be installed beneath the surface of the ground or within
an enclosure without providing adequate access for inspection and
maintenance. The maximum filtration rate shall not exceed the design
flow rate prescribed by the ANSI/NSF Standard 50 for commercial filters.
In no case shall the maximum filtration rate exceed the rates specified
in this Section.
[Ord. No. 07-110 §1, 8-14-2007]
Pressure gauges shall be installed on the inlet side of the
pump and the inlet and outlet manifold of the filters. Such gauges
shall read at one (1) pound pressure intervals or in inches of mercury/vacuum.
[Ord. No. 07-110 §1, 8-14-2007]
A.
Cross-connections
between potable water piping and the recirculation system or water
reservoir of any pool are prohibited. Potable water for make-up water
purposes may only be introduced into the reservoir:
1.
Across an air gap of at least twice the diameter of the pipe, not
less than six (6) inches above the overflow level. If an over-the-rim
spout is used, it shall be located so that it does not present a tripping
hazard; or
2.
Three (3) inches above the overflow rim of a float controlled make-up
water feed tank; or
3.
By a submerged inlet which is properly protected against backsiphonage
by a backflow prevention device meeting University of Southern California
Foundation for Cross-Connection Control and Hydraulic Research.
[Ord. No. 07-110 §1, 8-14-2007]
A.
Pool
wastewater shall be discharged through an air gap; disposal shall
be to sanitary sewers, storm sewers, drainfields or by other means
in accordance with local municipal and building official requirements
including obtaining all necessary permits. Each waste line shall have
a unique air gap. Waste lines from different sources (e.g., pool,
spa, overfill, sump pump) shall not be tied together, but may discharge
into a common sump or receptacle after the air gap.
B.
Disposal
of water from pools using D.E. powder shall be accomplished through
separation tanks which are equipped with air bleed valves, bottom
drain lines and isolation valves or through a settling tank with final
disposal being acceptable to local authorities. D.E. separator tanks
shall have a capacity as rated by the manufacturer, equal to the square
footage of the filter system.
C.
All
lines shall be sized to handle the expected flow. There shall not
be a direct physical connection between any waste or drain line from
a pool or recirculation system and any sewer line. Waste D.E. powder
shall be collected and disposed of in a manner acceptable to local
authorities and solid waste collectors.
[Ord. No. 07-110 §1, 8-14-2007]
A.
Caution Signs. A sign visible and legible from the spa shall
be provided. It shall state:
|
|
CAUTION
|
1.
Elderly persons, pregnant women, infants and those with health conditions
requiring medical care should consult with a physician before entering
a spa.
2.
Unsupervised use by children under the age of eighteen (18) is prohibited.
3.
Hot water immersion while under the influence of alcohol, narcotics,
drugs or medicines may lead to serious consequences and is not recommended.
4.
It is recommended that spa is not used alone.
5.
Long exposure may result in nausea, dizziness or fainting.
B.
Bather Load.
1.
Pools. A sign with clearly legible letters not less
than four (4) inches high shall be posted in a conspicuous place within
the pool enclosure or near the main entrance that shall indicate the
number of bathers permitted for each pool. Bathing load shall be determined
according to the following equations:
2.
Spas. A sign with clearly legible letters not less
than four (4) inches high shall be posted in a conspicuous place within
the spa enclosure or near the main entrance that shall indicate the
number of bathers permitted for each spa. Spa user capacity shall
be determined according to the following equation:
a.
Spa bathing load. Bathing load = (surface area of
water) ÷ (10 ft2 per bather)
C.
Warning Signs. Where no lifeguard service is provided, the
warning sign shall be placed in plain view and should state with clearly
legible at least four (4) inches high letters
|
|
WARNING—NO LIFEGUARD ON DUTY
|
|---|---|
|
|
In addition, the sign shall also state:
|
|
|
Children Under the Age of 18 Should Not Use Pool Without an
Adult in Attendance
|
1.
Where the water depth is less than five (5) feet (shallow pool),
a warning sign shall be posted in plain view and state "NO DIVING
ALLOWED" with clearly legible letters at least four (4) inches high.
2.
A sign posted in a conspicuous place shall state "Notify the manager
or operator on duty if the main drain is not visible".
3.
A sign posted in a conspicuous place shall state:
|
|
To register a complaint about the condition of this pool, contact
St. Charles County at (636) 949-1800.
|
[Ord. No. 07-110 §1, 8-14-2007]
Emergency Telephone And Emergency Contact List. A telephone shall be accessible during all hours of operation in
the vicinity of a public water recreation facility or within a three
hundred (300) foot walking distance from an entrance to swimming facility
enclosure. At a multi-level facility, the emergency telephone shall
be located within three (3) levels of the level on which the swimming
facility is located. The telephone numbers of the local Police, Fire
Department, physician, ambulance service and a hospital or "911",
where applicable, shall be posted in a conspicuous place near the
telephone. The name, address and telephone number of the swimming
pool facility shall be listed by the telephone. The location of the
emergency telephone shall be posted in the swimming pool facility
unless the telephone is located in the pool area.
[Ord. No. 07-110 §1, 8-14-2007]
[Ord. No. 07-110 §1, 8-14-2007]
Rainwater draining from any structure must be diverted away
from the swimming pool and pool deck to a suitable point of disposal.
