Raising splash well dam to prevent water over the transom

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Author Topic:   Raising splash well dam to prevent water over the transom

mnorman21 posted 12-13-2003 06:05 PM ET (US)
I have a 22' 85 revenge with twin 115 ocean runners and the smaller spash well that does not extend all the way across the beam of the boat. With 4 people, cooler, & fishing gear on the boat, I tend to take water over the corners onto the deck. I am considering having something fabricated to raise the splash well dam and close off the corners on either side of the motors. A few questions. Has anyone seen this type of modifaction and have any ideas about it? The only concern I have is the ability to power out a large amout of water that may come in from a large wave. Some people say that is a great safety feature of the notched transom on these boats. I have yet to take on a massive amount of water like this and I don't like fishing with by feet wet, especially this time of year when the water gets a little cold. Would scuppers to the splash well and and on each corner of the new fabricated peace be sufficent to expell water? If I did have this set up, would it be best to leave the plug out of splash well? I would appreciate any thoughts on this.
lhg posted 12-13-2003 06:13 PM ET (US)
To see how Whaler scuppers the splashwell dam on a full transom model, see the Reference section on Transom brackets.
I believe the Commercial products division makes a full width splashwell dam for the 22's, as an option.
Tom W Clark posted 12-15-2003 01:23 PM ET (US)
mnorman21,
A 1985 Revenge 22 hull has the curved splashwell reminiscent of the shape of the splash well on the smaller Whalers like the 17 footer. It has always been a problem given the low transom and the fact that water can reach the boats interior deck as you describe. It was for this reason that Whaler redesigned the transom splashwell on the 22's in 1989 to a straight across dam design that matches the splashwell design on the 1986 - 1989 20 foot hull that was derived from the 22 foot hull. Why Whaler did not make the change sooner I do not know. The original 20 foot hull as well as the 18 and 25 footers all have a straight across dam.
It is this later splashwell design that Larry refers to. Brunswick Commercial and Government Products (formerly Boston Whaler Commercial Products Division) offers the option of an aluminum splashwell dam extension that can be fitted to a 22 footer they produce. It will not work on a hull like yours, though CPD did apparently make a splashwell option for the older hulls. The 1988 CPD catalog lists that option as costing $795. I do not know what it looks like as there are no illustrations of it.
doobee posted 12-17-2003 11:12 PM ET (US)
The reason Whaler took so long was that that it took 4 years to convince Dougherty that it was an issue worth addressing.
As I recall, Whaler had large rectangular scuppers in both splashwells. In both cases I believe they were fabricated out of aluminum. On the early style transom the splashwell has to be located aft of the cockpit sump and the baitwell, or water will overflow from the baitwell and into the cockpit via the sump. It also has to be far enough forward of the engines to allow them to tilt up.

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Author	Topic: Raising splash well dam to prevent water over the transom
mnorman21	posted 12-13-2003 06:05 PM ET (US) I have a 22' 85 revenge with twin 115 ocean runners and the smaller spash well that does not extend all the way across the beam of the boat. With 4 people, cooler, & fishing gear on the boat, I tend to take water over the corners onto the deck. I am considering having something fabricated to raise the splash well dam and close off the corners on either side of the motors. A few questions. Has anyone seen this type of modifaction and have any ideas about it? The only concern I have is the ability to power out a large amout of water that may come in from a large wave. Some people say that is a great safety feature of the notched transom on these boats. I have yet to take on a massive amount of water like this and I don't like fishing with by feet wet, especially this time of year when the water gets a little cold. Would scuppers to the splash well and and on each corner of the new fabricated peace be sufficent to expell water? If I did have this set up, would it be best to leave the plug out of splash well? I would appreciate any thoughts on this.
lhg	posted 12-13-2003 06:13 PM ET (US) To see how Whaler scuppers the splashwell dam on a full transom model, see the Reference section on Transom brackets. I believe the Commercial products division makes a full width splashwell dam for the 22's, as an option.
Tom W Clark	posted 12-15-2003 01:23 PM ET (US) mnorman21, A 1985 Revenge 22 hull has the curved splashwell reminiscent of the shape of the splash well on the smaller Whalers like the 17 footer. It has always been a problem given the low transom and the fact that water can reach the boats interior deck as you describe. It was for this reason that Whaler redesigned the transom splashwell on the 22's in 1989 to a straight across dam design that matches the splashwell design on the 1986 - 1989 20 foot hull that was derived from the 22 foot hull. Why Whaler did not make the change sooner I do not know. The original 20 foot hull as well as the 18 and 25 footers all have a straight across dam. It is this later splashwell design that Larry refers to. Brunswick Commercial and Government Products (formerly Boston Whaler Commercial Products Division) offers the option of an aluminum splashwell dam extension that can be fitted to a 22 footer they produce. It will not work on a hull like yours, though CPD did apparently make a splashwell option for the older hulls. The 1988 CPD catalog lists that option as costing $795. I do not know what it looks like as there are no illustrations of it.
doobee	posted 12-17-2003 11:12 PM ET (US) The reason Whaler took so long was that that it took 4 years to convince Dougherty that it was an issue worth addressing. As I recall, Whaler had large rectangular scuppers in both splashwells. In both cases I believe they were fabricated out of aluminum. On the early style transom the splashwell has to be located aft of the cockpit sump and the baitwell, or water will overflow from the baitwell and into the cockpit via the sump. It also has to be far enough forward of the engines to allow them to tilt up.