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FloPro Series Pumps Installation and Operation Manual
1.2
Pool Pump Suction Entrapment Prevention Guidelines
WARNING
Pump suction is hazardous and can trap and drown or disembowel bathers. Do not use or
operate swimming pools, spas, or hot tubs if a suction outlet cover is missing, broken, or loose.
The following guidelines provide information for pump installation that minimizes the risk of injury to
users of pools, spas, and hot tubs:
Entrapment Protection
- The pump suction system must provide protection against the hazards of
suction entrapment.
Suction Outlet Covers
- All suction outlets must have correctly installed, screw-fastened covers in
place. All suction outlet (drain) covers must be maintained. Drain covers must be listed/certified to the
latest version of ANSI/ASME A112.19.8. They must be replaced if cracked, broken, or missing.
Number of Suction Outlets Per Pump
- Provide at least two (2) main drains, with covers, as suction
outlets for each circulating pump suction line. The centers of the main drains (suction outlets) on any
one (1) suction line must be at least 3 feet apart, center to center. See Figure 1 on page 7. For additional
details and guidelines, refer to ANSI/APSP 7, the standard for
Suction Entrapment Avoidance in
Swimming Pools, Wading Pools, Spas, Hot Tubs, and Catch Basins.
The system
must
be built to include at least two (2) suction outlets (drains) connected to the pump
whenever the pump is running. However, if two (2) main drains run into a single suction line, the single
suction line may be equipped with a valve that will shut off both main drains from the pump. The system
shall be constructed such that it shall not allow for separate or independent shutoff or isolation of each
drain. See Figure 1 on page 7.
More than one (1) pump can be connected to a single suction line as long as the requirements above
are met.
Water Velocity
- The maximum water velocity through the suction fitting or cover for any suction outlet
must be 1.5 feet per second, unless the outlet complies with the latest published version of ANSI/ASME
A112.19.8, the standard for
Suction Fittings For Use in Swimming and Wading Pools, Spas, Hot Tubs,
and Whirlpool Bathtub Applications
. In any case, do not exceed the suction fitting’s maximum designed
flow rate.
If 100% of the pump’s flow comes from the main drain system, the maximum water velocity in the pump
suction hydraulic system must be 6 feet per second or less, even if one (1) main drain (suction outlet) is
completely blocked. The flow through the remaining main drain(s) must comply with the latest published
version of ANSI/ASME A112.19.8, the standard for
Suction Fittings For Use in Swimming and Wading
Pools, Spas, Hot Tubs, and Whirlpool Bathtub Applications
.
Testing and Certification
- Suction outlet covers must have been tested by a nationally recognized
testing laboratory and found to comply with the latest published version of ANSI/ASME A112.19.8, the
standard for
Suction Fittings For Use in Swimming and Wading Pools, Spas, Hot Tubs, and Whirlpool
Bathtub Applications
.
Fittings
- Fittings restrict flow; for best efficiency use the fewest possible fittings (but at least two (2)
suction outlets).
Avoid fittings that could cause an air trap.
Pool cleaner suction fittings must conform to applicable International Association of Plumbing and
Mechanical Officials (IAPMO) standards.
WARNING
SUCTION HAZARD. Can cause serious injury or death. Do not use this pump
for wading pools, shallow pools, or spas containing bottom drains, unless the
pump is connected to at least two (2) functioning suction outlets.
Summary of Contents for FHPM FloPro Series
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