Attwood Stainless Steel Scupper Valves User Manual

Cockpit

Cockpit Drain (#3882-1)

Scupper Valve

At Least 12" Above Maximum Water Line

Marine Sealant

Seacock

Wrench Flats

Hose Clamps

Hose

Threaded Thru-Hulls and Scupper Valve Installation Instructions

66558 - 66567 Series

SAVE THESE INSTRUCTIONS

Form Number 69398 Rev A 03-07

These stainless steel products carry a Limited Lifetime warranty.

WARNING:

Read instructions carefully before installing and using this product. To prevent injury, remove boat from water when installing this product and before using 120V power tools.

The stainless steel thru-hull and scupper valve must be mounted above the boat’s maximum water line as determined by the boat’s draft at the maximum loading recommended by the boat manufacturer. On sailboats, mount high enough on the center of the transom so fitting is above water line at all times.

FEATURES

The stainless steel thru-hull and scupper valve have threaded ends. A seacock or in-line valve can be threaded directly onto these fittings. See chart below to match thread size.

REQUIRED FOR INSTALLATION

• Expandable wrench (max. 2-1/2", 64mm)

• Hole saw (see chart for size)

• Cordless drill

• Polyurethane marine sealant

4. Place tightening nut onto threads, with wide side toward hull. Tighten firmly, but do not damage gelcoat by over-tightening. To prevent turning, grip wrench flats with an expandable wrench.

5. Turn seacock onto the thru-hull threads. Grip the wrench flats to hold thru-hull in place.

6. Lead hose from bilge pump to seacock at an upward angle. Fasten tightly at both ends with hose clamps.

SCUPPER VALVE INSTALLATION

The Attwood threaded scupper valve is designed for boats with a self-bailing cockpit. The flapper valve opens outward to release water and automatically closes to help prevent backwash from entering the cockpit. Mount scupper in the transom at least 12" (30cm) above maximum water line.

1. Use a hole saw (see chart in left column for size – check against scupper) to cut hole in the transom or hull. (See Figure 2.)

2. Remove tightening nut. Apply a small bead of marine sealant in the groove under the flange.

3. Place scupper into the hole. After this point, all connections may be made from inside the hull.

4. Place tightening nut onto threads, with wide side toward hull. Tighten firmly, but do not damage gelcoat by over-tightening. To prevent turning, grip wrench flats with an expandable wrench.

5. Turn seacock onto the scupper valve threads. Grip the wrench flats to hold scupper in place.

6. Lead hose from cockpit to seacock at a downward angle. Fasten tightly at both ends with hose clamps.

Figure 2

Thru-Hull Thread Thread Hole Saw Part Number Size (NPSM) Length Size

66558 1/2" 2-1/8" 7/8" 66559 3/4" 2-1/8" 1-1/8" 66561 1" 2-1/4" 1-3/8" 66562 1-1/4" 2-1/2" 1-3/4" 66563 1-1/2" 2-3/8" 2" 66564 2" 2-1/2" 2-1/2" Scupper Valve

Part Number 66565 1-1/2" 3-1/2" 2" 66567 2" 2-1/2" 2-1/2"

THRU-HULL INSTALLATION

Mount thru-hull in the transom or side of hull, at least 12" (30cm) above maximum water line. If possible, place fitting on the same side as the steering wheel so driver can see discharge of water when the pump is working properly.

1. Use a hole saw (see chart for size – check against thru-hull) to cut hole in the transom or hull. (Figure 1)

2. Remove tightening nut. Apply a small bead of marine sealant in the groove under the flange.

3. Place thru-hull into the hole. After this point, all connections may be made from inside the hull.

Figure 1

Hose at Upward Angle

Hose Clamps

Marine Sealant Seacock

Wrench Flats

At Least 12" Above Maximum Water Line

Thru-Hull

ATTWOOD LIMITED LIFETIME WARRANTY

ATTWOOD CORPORATION, 1016 North Monroe, Lowell, Michigan 49331 (“Attwood”) warrants to the original consumer purchaser that, under normal use and service, this Attwood brand product will be free from defects in materials and workmanship for the service life of the vessel on which it is originally installed. This limited warranty is not applicable if the product has been damaged by accident, improper installation, unreasonable or improper use, lack of proper maintenance, unauthorized repairs or modifications, normal wear and tear, or other causes not arising out of defects in materials or workmanship. Attwood products are warranted for use on pleasure boats. Any other use — including but not limited to commercial, racing, or non-marine use — are not covered under this warranty. Attwood’s obligation under this warranty is limited to repair of the product at Attwood’s plant or replacement of the products at Attwood’s option without expense to the original consumer purchaser. Any expenses involved in the removal, reinstallation or transportation of the product are not covered by this warranty. The product must be returned to Attwood’s plant at the address above, postage prepaid, and insured with proof of original purchase including date. If Attwood is unable to replace the product and repair is not commercially practical or cannot be timely made, or if the original consumer purchaser is willing to accept a refund in lieu of repair or replacement, Attwood may refund the purchase price, less an amount for depreciation. The acceptance by Attwood of any product returned or any refund provided by Attwood shall not be deemed an admission that the product is defective or in violation of any warranty. Products that are replaced or for which a refund is issued become the property of Attwood.

THIS WARRANTY IS ATTWOOD’S ONLY EXPRESS WARRANTY OF THIS PRODUCT. NO IMPLIED WARRANTY SHALL EXTEND BEYOND ONE (1) YEAR FROM THE DATE OF ORIGINAL CONSUMER PURCHASE. ATTWOOD SHALL NOT BE LIABLE FOR ANY DAMAGES, FOR LOSS OF USE OF THIS PRODUCT, NOR FOR ANY OTHER INCIDENTAL OR CONSEQUENTIAL DAMAGES, COSTS OR EXPENSES.

Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitations and exclusions may not apply to you. This warranty gives you specific legal rights, and you may have other rights which vary from state to state.

A Steelcase Company

1016 N. Monroe Street, Lowell, MI 49331-0260

Stainless Steel Thru-Hulls

Hose Clamps

Maximum Water Line

Marine Sealant

Thru-Hull (standard thread)

See Chart for Hole Saw Size

Shaft Wrench Fitting

Hose at Upward Angle

Notch for Tightening

Thru-Hull (short thread)

Cockpit

Cockpit Drain (#3882-1)

Hose Clamps

Scupper Valve

At Least 12" Above Maximum Water Line

Marine Sealant

Shaft Wrench Fitting

See Chart Hole Saw Size

Hose

and Scupper Valve Installation Instructions

66540 - 66557, 66576 - 66579 and 67550-67580 Series

SAVE THESE INSTRUCTIONS

Form Number 69373 Rev G 08-03

This product carries a limited Lifetime Warranty. See www.attwoodmarine.com or Product Catalog for details.

WARNING:

Read all instructions carefully before installing and using this product. To prevent injury, remove boat from water when installing this product and before using 120V power tools.

The stainless steel Thru-Hull and Scupper Valve must be mounted above the boat’s maximum water line as determined by the boat’s draft at the maximum loading recommended by the boat manufacturer. On sailboats, mount the thru-hull high enough on the center of the transom to be above the water line at all times.

REQUIRED FOR INSTALLATION

• Expandable wrench (max. 2-1/2", 64mm)

• Hole saw (see chart for size)

• Cordless drill

• Polyurethane marine sealant

THRU-HULL INSTALLATION

Thru-Hull Thread Hose Hole Saw Max. Hull Part Number Length I.D. Size Thickness

66540-1 Short 5/8" I.D. 1-1/8" 5/8" 66546-1 Standard 5/8" I.D. 1-1/8" 1-1/16"

66541-1 Short 3/4" I.D. 1-1/8" 5/8" 66547-1 Standard 3/4" I.D. 1-1/8" 1-5/8"

66542-1 Short 1" I.D. 1-1/2" 5/8" 66548-1 Standard 1" I.D. 1-1/2" 1-3/4"

66543-1 Short 1-1/8" I.D. 1-1/2" 5/8" 66549-1 Standard 1-1/8" I.D. 1-1/2" 1-3/4"

66544-1 Short 1-1/4" I.D. 1-3/4" 5/8" 66550-1 Standard 1-1/4" I.D. 1-3/4" 1-7/8"

66545-1 Short 1-1/2" I.D. 2" 5/8" 66551-1 Standard 1-1/2" I.D. 2" 1-7/8"

66552-1 Standard 2" 2-1/2" 2" 90° Thru-Hull

Part Number 66576-1 Standard 5/8" I.D. 1-1/4" 1-1/16" 66577-1 Standard 3/4" I.D. 1-1/4" 1-1/16" 66578-1 Standard 1" I.D. 1-5/8" 1-1/4" 66579-1 Standard 1-1/8" I.D. 1-5/8" 1-1/4"

Narrow-Flange Thru-Hull Part Number

67555-1 Standard 5/8" I.D. 1-5/16" 7/8" 67554-1 Standard 3/4" I.D. 1-5/16" 3/4" 67556-1 Standard 1" I.D. 1-5/16" 7/8" 67557-1 Standard 1-1/8" I.D. 1-5/16" 3/4" 67551-1 Standard 1-1/2" I.D. 2" 1" 2-1/2"

67558-1 Long 3/4" I.D. 1-5/16" (min.1-9/16") 2-1/2"

67562-1 Long 1-1/2" I.D. 1-15/16" (min.1-9/16") 2-1/2"

67561-1 Long 1-1/8" I.D. 1-5/16" (min.1-9/16")

Mount Thru-Hull in the transom or side of hull, at least 12" (305mm) above maximum water line. If possible, place ﬁ tting on the same side as the steering wheel so the driver can see discharge of water when the pump is working properly.

1. Use a hole saw (see chart above for size – check against thru-hull) to cut hole in the transom or hull. (See Figure 1)

Figure 1

2. Remove tightening nut. Apply a small bead of marine sealant in the groove under the Thru-Hull ﬂ ange.

3. Place Thru-Hull into the hole. After this point, all connections may be made from inside the hull.

4. Place tightening nut onto threads, with wide side toward hull. Tighten ﬁ rmly, but do not damage gelcoat by overtightening. To prevent turning, grip the Shaft Wrench Fitting (on Standard Thread models) or the Notched End (on Short Thread models).

5. Lead hose from bilge pump to Thru-Hull at an upward angle. Fasten tightly at both ends with hose clamps.

SCUPPER VALVE INSTALLATION

Scupper Valve Thread Hose Hole Saw Max. Hull Part Number Length I.D. Size Thickness

66557-1 Short 1-1/2" I.D. 2" 1-7/8" 66553-1 Standard 1-1/2" I.D. 2" 3" 66555-1 Standard 2" I.D. 2-1/2" 2"

67553-1 Standard 1-1/2" I.D. 2-1/8" 2-3/4" 67581-1 Standard 1-1/2" 2-3/8" 1-1/8" 67580-1 Standard 2" 2-3/8" 1-1/8" 67583-1 Standard 2-1/2" 3-5/8" 1-1/2"

67582-1 Standard 3" 3-5/8" 1-1/2"

The Attwood Stainless Steel Scupper Valve is designed for boats with a self-bailing cockpit. The ﬂ apper valve opens outward to allow water to exit and automatically closes to help prevent backwash from entering the cockpit. Mount Scupper in the transom at least 12" (305mm) above maximum water line.

1. Use a hole saw (see chart above for size - check against scupper) to cut hole in the transom or hull. (See Figure 2.)

2. Remove tightening nut. Apply a small bead of marine sealant in the groove under the Scupper ﬂ ange.

3. Place Scupper Valve into the hole. After this point, all connections may be made from inside the hull.

4. Place tightening nut onto threads, with wide side toward hull. Tighten ﬁ rmly, but do not damage gelcoat by overtightening. To prevent turning, grip the Shaft Wrench Fitting with an expandable wrench.

5. Lead hose (see chart above for size) from cockpit to Scupper at a downward angle. Fasten tightly at both ends with hose clamps.

Figure 2

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