Hayward DYNA-SKIM SP1091LX, DYNA-SKIM SP1091WM Owner's Manual
PN: IS1091LX REV. D
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OWNER’S MANUAL
INSTALLATION, OPERATION, & PARTS
SP1091 SERIES DYNA-SKIM
AND HYDROSTREAM RECIRCULATION SYSTEM
Your new Hayward Thru-Wall Skimmer makes pool maintenance easier and more
convenient. Leaves, insects and floating debris are pulled from the pool into the skimmer
basket. Clean the basket regularly to keep your pool sparkling clean and sanitary.
TM
AUTOMATIC SKIMMER
Basic safety precautions should always be followed, including the following: Failure to follow instructions can cause severe injury
and/or death.
This is the safety-alert symbol. When you see this symbol on your equipment or in this manual, look for one of the following
signal words and be alert to the potential for personal injury.
WARNING warns about hazards that could cause serious personal injury, death or major property damage and if
ignored presents a potential hazard.
CAUTION warns about hazards that will or can cause minor or moderate personal injury and/or property damage and
if ignored presents a potential hazard. It can also make consumers aware of actions that are unpredictable and unsafe.
MAXIMUM RECOMMENDED SYSTEM FLOW RATE BY PIPE SIZE
Pipe Size
[mm]
1”
[32]
1 ¼”
[40]
Flow rate
GPM [Liter/Min]
20
[75]
30
[110]
Pipe Size
[mm]
1 ½”
[50]
2”
[63]
Flow rate
GPM [Liter/Min]
45
[170]
80
[300]
Pipe Size
[mm]
2 ½”
[75]
3”
[90]
Flow rate
GPM [Liter/Min]
110
[415]
160
[600]
Page 2 of 4 DYNA-SKIM SKIMMERS IS1091LX REV D
- WARNING - Read and follow all instructions in this owner’s manual and on
the equipment. Failure to follow instructions can cause severe injury and/or death.
IMPORTANT SAFETY INSTRUCTIONS
WARNING – Suction Entrapment Hazard.
Suction in suction outlets and/or suction outlet covers which are damaged, broken, cracked, missing,
or unsecured can cause severe injury or death due to the following entrapment hazards:
Hair Entrapment- Hair becomes knotted or snagged in an outlet cover.
Limb Entrapment- A limb sucked or inserted into an opening of a circulation outlet with a broken or missing cover in
the pool resulting in a mechanical bind or swelling
Body Suction Entrapment- Suction applied to a large portion of the body or limbs resulting in an entrapment.
Evisceration/ Disembowelment Entrapment- Suction applied directly to the intestines through an unprotected
sump or suction outlet with a missing or broken cover.
Mechanical Entrapment- Potential for jewelry, swimsuit, hair decorations, finger, toe or knuckle to be caught in an
opening of an outlet or cover.
To Reduce the risk of Entrapment Hazards:
o Dual suction fittings shall not be located on seating areas or on the backrest for such seating areas.
o The maximum system flow rate shall not exceed the flow rating of any listed (per ASME/ANSI A112.19.8M-1987,
ASME A112.19.8-2007) suction outlet cover installed.
o Never use a Pool or Spa if any suction outlet component is damaged, broken, cracked, missing, or not securely attached.
o Replace damaged, broken, cracked, missing, or not securely attached suction outlet components immediately.
o Two or more suction outlets per pump should be installed in accordance with latest APSP Standards and CPSC
guidelines, follow all National, State, and Local codes applicable.
o Installation of a vacuum release system, which relieves entrapping suction, is recommended.
o A minimum of two functioning suction outlets per pump must be installed. Suction outlets in the
same plane (i.e. floor or wall), must be installed a minimum of three feet (3’) [1 meter] apart, as
measured from suction center line to suction center line.
o Dual suction fittings shall be placed in such locations and distances to avoid “dual blockage” by a
user.
POOL PREPARATION
Fill the pool with approximately two (2) feet of water so the liner is under weight and stretched to the proper position
prior to installing the skimmer.
Note: The liner cannot be shifted after the skimmer and return holes have been cut.
SKIMMER ASSEMBY
1. If the SP1091E, Wide mouth extension, is not installed on the body, it must be assembled to the body prior to attempting to
install the skimmer in the pool.
2. To install the wide mouth extension, insert four (4) pan head screws 1” long through the lip of the extension and four (4)
through the throat of the skimmer. Place the gasket between the extension and the skimmer body. Firmly tighten the screws.
SKIMMER INSTALLATION
1. From the outside of the pool install the face-plate double gasket at skimmer cutout in the wall. Reach over the top rail of the
pool and carefully press the face-plate and liner against the gasket and skimmer cutout in the wall. Punch out the two top
corner holes using a blunt object. Insert two self-threading flat head screws (provided) into the top corner holes of the faceplate.
2. Carefully push the screws through the holes that have been pierced in the liner and through the double gasket. From the
outside of the pool, align the skimmer body with these screws. Lightly tighten the two screws.
3. Using a blunt object, pierce the remaining holes in the liner. Insert and lightly tighten the remaining flat head screws through
the face-plate, liner, gasket and into the corresponding holes on the skimmer. Firmly tighten all screws evenly, alternately
left and right, top and bottom.
4. Using the skimmer face plate as a guide, use a razor knife to trim only the liner, being careful not to the gasket, in the large
skimmer opening.
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