OAR 333-060-0115
Overflow Systems

All public swimming pools shall be operated with a continuous overflow. Overflow systems shall be either of the perimeter type or a series of surface skimmers:

(1)

A perimeter type overflow system shall be used at all general-use public swimming pools and at limited-use public swimming pools which are greater than 30 feet (9.1m) in width or have more than 2,500 square feet of surface area. Such perimeter system shall:

(a)

Extend completely around the pool;

(b)

Have a gutter which is smooth, cleanable and provides positive drainage.

(2)

A perimeter-type or skimmer-type overflow system shall be used at all limited-use public swimming pools less than 30 feet (9.1m) in width or with less than 2,500 square feet of surface area:

(a)

Where skimmers are used, there shall be one skimmer for each 400 square feet of surface area, with a minimum of two skimmers;

(b)

Skimmers shall be located so as to achieve effective skimming action over the entire surface area of the pool.

(3)

Intentionally left blank —Ed.

(a)

Perimeter overflow systems shall be connected to the recirculation system with a system surge capacity of at least one gallon per square foot of pool surface. External surge systems shall be capable of transferring water at a rate equal to 100 percent of the design pool flow rate. Gutters shall drain in two minutes or less after sudden flooding;

(b)

Pools with perimeter overflow systems shall be provided with surge tanks unless predesigned and prefabricated to use in-gutter of in-pool surge. Surge tanks shall have a capacity of one gallon per square foot of pool surface.

(4)

Overflow systems shall be designed so as to return overflow water to the recirculation system ahead of the filters. Provisions shall be made for diverting gutter water to waste when cleaning the gutter.

(5)

Pools built prior to 1971 which were constructed without the overflow system being connected to the recirculation system shall satisfy this requirement by overflowing at least daily provided the water quality parameters of Pool Water Quality OAR 333-060-0200 (Pool Water Quality) and Table 3 are met.
[ED. NOTE: Tables referenced are available from the agency.]

Source: Rule 333-060-0115 — Overflow Systems, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=333-060-0115.

333‑060‑0005
Purpose 333‑060‑0010
Adoption by Reference 333‑060‑0015
Definitions 333‑060‑0020
Compliance 333‑060‑0025
Approval to Construct 333‑060‑0030
Plans 333‑060‑0035
Licenses 333‑060‑0040
Conditional Licenses 333‑060‑0045
Maintenance and Modification 333‑060‑0050
Structural Stability 333‑060‑0055
Size 333‑060‑0060
Dimensions 333‑060‑0065
Finishes, Markings and Lifelines 333‑060‑0070
Illumination 333‑060‑0075
Ventilation 333‑060‑0080
Ladders, Recessed Steps and Stairways 333‑060‑0085
Diving 333‑060‑0090
Slides 333‑060‑0091
Waterpark Slides 333‑060‑0095
Elevated Lifeguard Chairs 333‑060‑0100
Life Saving Equipment 333‑060‑0105
Swimming Pool Enclosure 333‑060‑0110
Decks 333‑060‑0115
Overflow Systems 333‑060‑0120
Recirculation System 333‑060‑0125
Inlets 333‑060‑0128
Submerged Suction Outlets and Drains 333‑060‑0130
Piping 333‑060‑0135
Pumps 333‑060‑0140
Filters 333‑060‑0145
Pool Heaters 333‑060‑0150
Disinfectant and Chemical Feeders 333‑060‑0155
Meters and Gauges 333‑060‑0160
Equipment Room 333‑060‑0165
Ground Fault Interrupter 333‑060‑0170
Bathhouses and Sanitary Facilities 333‑060‑0175
Visitor and Spectator Areas 333‑060‑0180
Food Service 333‑060‑0185
Drinking Fountains 333‑060‑0190
Domestic Water Quality 333‑060‑0200
Pool Water Quality 333‑060‑0205
Operation and Maintenance 333‑060‑0206
Supervision — Limited-Use Pools 333‑060‑0207
Supervision — General-Use Pools 333‑060‑0208
Lifeguard Supervision & Training 333‑060‑0209
Pool Staff Training & Safety 333‑060‑0210
Pool Safety 333‑060‑0215
Signs 333‑060‑0220
Variance 333‑060‑0225
Instructional Use of Limited-Use Pools 333‑060‑0500
Wading Pools 333‑060‑0505
New Wading Pool Construction 333‑060‑0510
Existing Wading Pools 333‑060‑0515
Wading Pool Operation 333‑060‑0700
Enforcement 333‑060‑0705
Pool Closure Criteria
Last Updated

Jun. 8, 2021

Rule 333-060-0115’s source at or​.us