Re: ventilation

I am thinking about replacing the dorades on my Cal 39 with solar powered vents. Can anyone see a reason not to do this or have a better suggestion? I leave them off and capped right now for racing but would like to keep the boat ventilated without constantly removing and reinstalling them. Thanks Paul "Husar, Charlie [USA]" <hu… [at] bah.com> wrote: >Folks, whereas Exotic Lumber deals mostly in raw lumber (they can shape if you want it), there is another place I bought a some parts from recently for a CAL 25 rehab. It is Buck Woodcraft in Fla. They have a lot of moldings rails, and other finished teak products. Have not yet installed what I bought, but it looks like OK stuff sitting in my living room. Some of the molding items are AFI from Marinco. > >http://www.buckwoodcraft.com/ > >Just found them on the web during a teak search a while back. > >Cheers >Charlie

I think solar powered vents are a good idea but the dorade box will affect their efficiency. I also would take them off racing if they will get salt water in them. I had one in my Cal 34 and liked it but I took it off sailing. MIke Kennedy On May 16, 2010, at 7:47 AM, Paul wrote: > I am thinking about replacing the dorades on my Cal 39 with solar > powered vents. Can anyone see a reason not to do this or have a > better suggestion? I leave them off and capped right now for racing > but would like to keep the boat ventilated without constantly > removing and reinstalling them. > Thanks > Paul > > "Husar, Charlie [USA]" <hu… [at] bah.com> wrote: > > >Folks, whereas Exotic Lumber deals mostly in raw lumber (they can > shape if you want it), there is another place I bought a some parts > from recently for a CAL 25 rehab. It is Buck Woodcraft in Fla. They > have a lot of moldings rails, and other finished teak products. Have > not yet installed what I bought, but it looks like OK stuff sitting > in my living room. Some of the molding items are AFI from Marinco. > > > >http://www.buckwoodcraft.com/ > > > >Just found them on the web during a teak search a while back. > > > >Cheers > >Charlie > >

I have the solar powered vents and like them but they break if you step on them. I looked at the stainless steel ones and they were just a thin steel cover over a plastic body, no better. I ended up buying some stainless steel pie plates at Amazon and cutting a hole in them for the solar panel and mounting them to the deck with stand-offs and screws. I can stand on them without a problem. Eventually the batteries go bad and you either replace the battery, which is a pain, or just have daytime powered vents, which is what I did. But, these vents (I have 2) did not prevent mildew. I got a "Stor-Dry" and am giving that a try. I used to run a heater but the safety aspect got to me when one of my crew plugged it in when it was still in the bucket with a bunch of rags. He thought it was the battery charger cord. Allen On Sun, May 16, 2010 at 7:47 AM, Paul <pw… [at] aol.com> wrote: > > > I am thinking about replacing the dorades on my Cal 39 with solar powered > vents. Can anyone see a reason not to do this or have a better suggestion? I > leave them off and capped right now for racing but would like to keep the > boat ventilated without constantly removing and reinstalling them. > Thanks > Paul > > > "Husar, Charlie [USA]" <hu… [at] bah.com <husar_charlie%40bah.com>> > wrote: > > >Folks, whereas Exotic Lumber deals mostly in raw lumber (they can shape if > you want it), there is another place I bought a some parts from recently for > a CAL 25 rehab. It is Buck Woodcraft in Fla. They have a lot of moldings > rails, and other finished teak products. Have not yet installed what I > bought, but it looks like OK stuff sitting in my living room. Some of the > molding items are AFI from Marinco. > > > >http://www.buckwoodcraft.com/ > > > >Just found them on the web during a teak search a while back. > > > >Cheers > >Charlie > > >

I have one that has been running for several years. No mold here, but probably not much chance of that anyway as I sail pretty much weekly and it is So Cal where our moisture is usually in some kind of deficit mode. I did replace the battery, but with a generic rechargeable from my local Ace store. Not a perfect match for millivolts and milliamps, but it works fine for the last year plus. The only complaint I have is that it will leak if presented with sideways rain (or energetic crew with hose) and it developed a sort of soft whirring noise early in it's life and my v-berth guests find it annoying at night at a peaceful Island. My son stuffed toilet paper into the vanes to stop it and that seemed to work ok without damaging the thing. Somebody on this list talked at one time about having installed a small toggle switch to disable it. Wilkie On May 16, 2010, at 11:21 AM, Allen Edwards wrote: > I have the solar powered vents and like them but they break if you > step on them. I looked at the stainless steel ones and they were > just a thin steel cover over a plastic body, no better. I ended up > buying some stainless steel pie plates at Amazon and cutting a hole > in them for the solar panel and mounting them to the deck with stand- > offs and screws. I can stand on them without a problem. Eventually > the batteries go bad and you either replace the battery, which is a > pain, or just have daytime powered vents, which is what I did. > > > But, these vents (I have 2) did not prevent mildew. I got a "Stor- > Dry" and am giving that a try. I used to run a heater but the > safety aspect got to me when one of my crew plugged it in when it > was still in the bucket with a bunch of rags. He thought it was the > battery charger cord. > > Allen > > > > On Sun, May 16, 2010 at 7:47 AM, Paul <pw… [at] aol.com> wrote: > > I am thinking about replacing the dorades on my Cal 39 with solar > powered vents. Can anyone see a reason not to do this or have a > better suggestion? I leave them off and capped right now for racing > but would like to keep the boat ventilated without constantly > removing and reinstalling them. > Thanks > Paul > > > > "Husar, Charlie [USA]" <hu… [at] bah.com> wrote: > > >Folks, whereas Exotic Lumber deals mostly in raw lumber (they can > shape if you want it), there is another place I bought a some parts > from recently for a CAL 25 rehab. It is Buck Woodcraft in Fla. They > have a lot of moldings rails, and other finished teak products. Have > not yet installed what I bought, but it looks like OK stuff sitting > in my living room. Some of the molding items are AFI from Marinco. > > > >http://www.buckwoodcraft.com/ > > > >Just found them on the web during a teak search a while back. > > > >Cheers > >Charlie > > > >

If you really want to get rid of mold, and are in a slip with shore power, buy a dehumidifier at Sears and put it in the boat. Take it out and leave it on the dock or in a car when you go to the island. I had one for five years and it worked great. The discharge will fill the tank in a few hours so I hooked a hose to the outflow (It has a connector for this) and ran it to the bilge. The automatic bilge pump did the rest. The boat was warm and dry all winter. My electric bill for the slip went up about 5 dollars a month. I set it to cycle on about three hours every 12. I usually took it out in summer as it is pretty dry here then. Race boats leave them in all year as a dry boat is a bit lighter. Mike Kennedy On May 16, 2010, at 11:44 AM, David Wilkie Owen wrote: > > > I have one that has been running for several years. No mold here, > but probably not much chance of that anyway as I sail pretty much > weekly and it is So Cal where our moisture is usually in some kind > of deficit mode. I did replace the battery, but with a generic > rechargeable from my local Ace store. Not a perfect match for > millivolts and milliamps, but it works fine for the last year plus. > The only complaint I have is that it will leak if presented with > sideways rain (or energetic crew with hose) and it developed a sort > of soft whirring noise early in it's life and my v-berth guests find > it annoying at night at a peaceful Island. My son stuffed toilet > paper into the vanes to stop it and that seemed to work ok without > damaging the thing. Somebody on this list talked at one time about > having installed a small toggle switch to disable it. > > Wilkie > > > On May 16, 2010, at 11:21 AM, Allen Edwards wrote: > >> I have the solar powered vents and like them but they break if you >> step on them. I looked at the stainless steel ones and they were >> just a thin steel cover over a plastic body, no better. I ended up >> buying some stainless steel pie plates at Amazon and cutting a hole >> in them for the solar panel and mounting them to the deck with >> stand-offs and screws. I can stand on them without a problem. >> Eventually the batteries go bad and you either replace the battery, >> which is a pain, or just have daytime powered vents, which is what >> I did. >> >> >> But, these vents (I have 2) did not prevent mildew. I got a "Stor- >> Dry" and am giving that a try. I used to run a heater but the >> safety aspect got to me when one of my crew plugged it in when it >> was still in the bucket with a bunch of rags. He thought it was >> the battery charger cord. >> >> Allen >> >> >> >> On Sun, May 16, 2010 at 7:47 AM, Paul <pw… [at] aol.com> wrote: >> >> I am thinking about replacing the dorades on my Cal 39 with solar >> powered vents. Can anyone see a reason not to do this or have a >> better suggestion? I leave them off and capped right now for racing >> but would like to keep the boat ventilated without constantly >> removing and reinstalling them. >> Thanks >> Paul >> >> >> >> "Husar, Charlie [USA]" <hu… [at] bah.com> wrote: >> >> >Folks, whereas Exotic Lumber deals mostly in raw lumber (they can >> shape if you want it), there is another place I bought a some parts >> from recently for a CAL 25 rehab. It is Buck Woodcraft in Fla. They >> have a lot of moldings rails, and other finished teak products. >> Have not yet installed what I bought, but it looks like OK stuff >> sitting in my living room. Some of the molding items are AFI from >> Marinco. >> > >> >http://www.buckwoodcraft.com/ >> > >> >Just found them on the web during a teak search a while back. >> > >> >Cheers >> >Charlie >> >> >> > > >

Can you recommend a model number? On Sun, May 16, 2010 at 12:37 PM, Michael Kennedy <mt… [at] cox.net>wrote: > If you really want to get rid of mold, and are in a slip with shore > power, buy a dehumidifier at Sears and put it in the boat. Take it out > and leave it on the dock or in a car when you go to the island. I had > one for five years and it worked great. The discharge will fill the > tank in a few hours so I hooked a hose to the outflow (It has a > connector for this) and ran it to the bilge. The automatic bilge pump > did the rest. The boat was warm and dry all winter. My electric bill > for the slip went up about 5 dollars a month. I set it to cycle on > about three hours every 12. I usually took it out in summer as it is > pretty dry here then. Race boats leave them in all year as a dry boat > is a bit lighter. > > Mike Kennedy > > > On May 16, 2010, at 11:44 AM, David Wilkie Owen wrote: > > > > > > > I have one that has been running for several years. No mold here, > > but probably not much chance of that anyway as I sail pretty much > > weekly and it is So Cal where our moisture is usually in some kind > > of deficit mode. I did replace the battery, but with a generic > > rechargeable from my local Ace store. Not a perfect match for > > millivolts and milliamps, but it works fine for the last year plus. > > The only complaint I have is that it will leak if presented with > > sideways rain (or energetic crew with hose) and it developed a sort > > of soft whirring noise early in it's life and my v-berth guests find > > it annoying at night at a peaceful Island. My son stuffed toilet > > paper into the vanes to stop it and that seemed to work ok without > > damaging the thing. Somebody on this list talked at one time about > > having installed a small toggle switch to disable it. > > > > Wilkie > > > > > > On May 16, 2010, at 11:21 AM, Allen Edwards wrote: > > > >> I have the solar powered vents and like them but they break if you > >> step on them. I looked at the stainless steel ones and they were > >> just a thin steel cover over a plastic body, no better. I ended up > >> buying some stainless steel pie plates at Amazon and cutting a hole > >> in them for the solar panel and mounting them to the deck with > >> stand-offs and screws. I can stand on them without a problem. > >> Eventually the batteries go bad and you either replace the battery, > >> which is a pain, or just have daytime powered vents, which is what > >> I did. > >> > >> > >> But, these vents (I have 2) did not prevent mildew. I got a "Stor- > >> Dry" and am giving that a try. I used to run a heater but the > >> safety aspect got to me when one of my crew plugged it in when it > >> was still in the bucket with a bunch of rags. He thought it was > >> the battery charger cord. > >> > >> Allen > >> > >> > >> > >> On Sun, May 16, 2010 at 7:47 AM, Paul <pw… [at] aol.com> wrote: > >> > >> I am thinking about replacing the dorades on my Cal 39 with solar > >> powered vents. Can anyone see a reason not to do this or have a > >> better suggestion? I leave them off and capped right now for racing > >> but would like to keep the boat ventilated without constantly > >> removing and reinstalling them. > >> Thanks > >> Paul > >> > >> > >> > >> "Husar, Charlie [USA]" <hu… [at] bah.com> wrote: > >> > >> >Folks, whereas Exotic Lumber deals mostly in raw lumber (they can > >> shape if you want it), there is another place I bought a some parts > >> from recently for a CAL 25 rehab. It is Buck Woodcraft in Fla. They > >> have a lot of moldings rails, and other finished teak products. > >> Have not yet installed what I bought, but it looks like OK stuff > >> sitting in my living room. Some of the molding items are AFI from > >> Marinco. > >> > > >> >http://www.buckwoodcraft.com/ > >> > > >> >Just found them on the web during a teak search a while back. > >> > > >> >Cheers > >> >Charlie > >> > >> > >> > > > > > > > > > > ------------------------------------ > > Yahoo! Groups Links > > > >

some solar vents have an on/off switch built in. all our 4" vents do. They also can be closed to stop green sater or sideways rain or hose overspray from entering. Reggie To: Ca… [at] yahoogroups.com From: dw… [at] cox.net Date: Sun, 16 May 2010 11:44:11 -0700 Subject: Re: [Cal_Boats] Re: ventilation I have one that has been running for several years. No mold here, but probably not much chance of that anyway as I sail pretty much weekly and it is So Cal where our moisture is usually in some kind of deficit mode. I did replace the battery, but with a generic rechargeable from my local Ace store. Not a perfect match for millivolts and milliamps, but it works fine for the last year plus. The only complaint I have is that it will leak if presented with sideways rain (or energetic crew with hose) and it developed a sort of soft whirring noise early in it's life and my v-berth guests find it annoying at night at a peaceful Island. My son stuffed toilet paper into the vanes to stop it and that seemed to work ok without damaging the thing. Somebody on this list talked at one time about having installed a small toggle switch to disable it. Wilkie On May 16, 2010, at 11:21 AM, Allen Edwards wrote: I have the solar powered vents and like them but they break if you step on them. I looked at the stainless steel ones and they were just a thin steel cover over a plastic body, no better. I ended up buying some stainless steel pie plates at Amazon and cutting a hole in them for the solar panel and mounting them to the deck with stand-offs and screws. I can stand on them without a problem. Eventually the batteries go bad and you either replace the battery, which is a pain, or just have daytime powered vents, which is what I did. But, these vents (I have 2) did not prevent mildew. I got a "Stor-Dry" and am giving that a try. I used to run a heater but the safety aspect got to me when one of my crew plugged it in when it was still in the bucket with a bunch of rags. He thought it was the battery charger cord. Allen On Sun, May 16, 2010 at 7:47 AM, Paul <pw… [at] aol.com> wrote: I am thinking about replacing the dorades on my Cal 39 with solar powered vents. Can anyone see a reason not to do this or have a better suggestion? I leave them off and capped right now for racing but would like to keep the boat ventilated without constantly removing and reinstalling them. Thanks Paul "Husar, Charlie [USA]" <hu… [at] bah.com> wrote: >Folks, whereas Exotic Lumber deals mostly in raw lumber (they can shape if you want it), there is another place I bought a some parts from recently for a CAL 25 rehab. It is Buck Woodcraft in Fla. They have a lot of moldings rails, and other finished teak products. Have not yet installed what I bought, but it looks like OK stuff sitting in my living room. Some of the molding items are AFI from Marinco. > >http://www.buckwoodcraft.com/ > >Just found them on the web during a teak search a while back. > >Cheers >Charlie

you can add a solar vent on the box in lieu of the dorade snorkle. just pick the right size to fit the hole in your dorade box. Those dorade boxes develope leaks over time at the mounting screws. soaks into the plywood in the coachroof. Reggie To: Ca… [at] yahoogroups.com From: pw… [at] aol.com Date: Sun, 16 May 2010 10:47:33 -0400 Subject: [Cal_Boats] Re: ventilation I am thinking about replacing the dorades on my Cal 39 with solar powered vents. Can anyone see a reason not to do this or have a better suggestion? I leave them off and capped right now for racing but would like to keep the boat ventilated without constantly removing and reinstalling them. Thanks Paul "Husar, Charlie [USA]" <hu… [at] bah.com> wrote: >Folks, whereas Exotic Lumber deals mostly in raw lumber (they can shape if you want it), there is another place I bought a some parts from recently for a CAL 25 rehab. It is Buck Woodcraft in Fla. They have a lot of moldings rails, and other finished teak products. Have not yet installed what I bought, but it looks like OK stuff sitting in my living room. Some of the molding items are AFI from Marinco. > >http://www.buckwoodcraft.com/ > >Just found them on the web during a teak search a while back. > >Cheers >Charlie

I'd suggest leaving the dorades on unless your racing (it's amazing what those things will snag). The design's pretty foolproof and they give some ventillation to the boat. If you're on the hook, you might consider pointing one forward and one aft. My reasoning for this is that air will be drawn into the forward facing dorade and exited out the aft facing one. The aft facing one will also benefit from the slight negative air pressure passing over the dorade. I've seen mods where the owner had the dorades facing forward and a vent installed in the washboards. Air entered the dorades and exited via the washboard vent. The owner had a dodger in place and I'd be leery of doing this if I didn't. If you're on the dock then power's not a problem and you might get better air flow with a cheap 12V fan directed towards one of the dorades. The fan will draw fresh air in, keeping the moisture fairly constant. If you're trying to control humidity, I don't think solar powered fans'll be as effective as either a dehumidifier (@ the dock) or a solar panel and a couple of fans (on the hook). Some folks have had marginal success by leaving out those silica gel packets. Evidently you can heat them to remove the absorbed moisture, and reuse them. --- In Ca… [at] yahoogroups.com, Paul <pwestla@...> wrote: > > I am thinking about replacing the dorades on my Cal 39 with solar powered vents. Can anyone see a reason not to do this or have a better suggestion? I leave them off and capped right now for racing but would like to keep the boat ventilated without constantly removing and reinstalling them. > Thanks > Paul > > "Husar, Charlie [USA]" <husar_charlie@...> wrote: > > >Folks, whereas Exotic Lumber deals mostly in raw lumber (they can shape if you want it), there is another place I bought a some parts from recently for a CAL 25 rehab. It is Buck Woodcraft in Fla. They have a lot of moldings rails, and other finished teak products. Have not yet installed what I bought, but it looks like OK stuff sitting in my living room. Some of the molding items are AFI from Marinco. > > > >http://www.buckwoodcraft.com/ > > > >Just found them on the web during a teak search a while back. > > > >Cheers > >Charlie >

I use Damp Rid and it really works great. Gets rid of smells and does not leave the cabin smelling like air freshner, just a clean scent. If you buy at WM its pretty pricey but I get online at Home Depot 3 bags for about $7 and that will last a season. I did run out and have some mildew growth to attend to now. From: Allen Edwards <al… [at] PaloAltoPhoto.com> To: Ca… [at] yahoogroups.com Sent: Sun, May 16, 2010 11:21:25 AM Subject: Re: [Cal_Boats] Re: ventilation I have the solar powered vents and like them but they break if you step on them. I looked at the stainless steel ones and they were just a thin steel cover over a plastic body, no better. I ended up buying some stainless steel pie plates at Amazon and cutting a hole in them for the solar panel and mounting them to the deck with stand-offs and screws. I can stand on them without a problem. Eventually the batteries go bad and you either replace the battery, which is a pain, or just have daytime powered vents, which is what I did. But, these vents (I have 2) did not prevent mildew. I got a "Stor-Dry" and am giving that a try. I used to run a heater but the safety aspect got to me when one of my crew plugged it in when it was still in the bucket with a bunch of rags. He thought it was the battery charger cord. Allen On Sun, May 16, 2010 at 7:47 AM, Paul <pwestla@aol. com> wrote: >I am thinking about replacing the dorades on my Cal 39 with solar powered vents. Can anyone see a reason not to do this or have a better suggestion? I leave them off and capped right now for racing but would like to keep the boat ventilated without constantly removing and reinstalling them. >Thanks >Paul > > >"Husar, Charlie [USA]" <husar_charlie@ bah.com> wrote: > >>Folks, whereas Exotic Lumber deals mostly in raw lumber (they can shape if you want it), there is another place I bought a some parts from recently for a CAL 25 rehab. It is Buck Woodcraft in Fla. They have a lot of moldings rails, and other finished teak products. Have not yet installed what I bought, but it looks like OK stuff sitting in my living room. Some of the molding items are AFI from Marinco. >> >>http://www.buckwood craft.com/ >> >>Just found them on the web during a teak search a while back. >> >>Cheers >>Charlie >

Re Damp Rid: Do you use one bag at a time or all three at once? Does it leak liquid as it absorbs moisture? I too am wiping down the interior to get rid of mold. Harleigh From: Ca… [at] yahoogroups.com [mailto:Ca… [at] yahoogroups.com] On Behalf Of Bryan Saulsbury Sent: Monday, May 17, 2010 4:55 PM To: Ca… [at] yahoogroups.com Subject: Re: [Cal_Boats] Re: ventilation I use Damp Rid and it really works great. Gets rid of smells and does not leave the cabin smelling like air freshner, just a clean scent. If you buy at WM its pretty pricey but I get online at Home Depot 3 bags for about $7 and that will last a season. I did run out and have some mildew growth to attend to now.

I have an inexpensive ion/ozone generator I bought on EBay. It uses a fan like the one that cools a computer. I set it on my counter or V berth after each sail. I also use a heat type air circulator on the sole. But, you need to scrub the mold out annually in all the knicks and cranies of the overhead, at least, or better yet, more often, and you are better off nipping the little black dots in the bud because the more of them, the faster the fungus spreads until your eyes and lungs burn lest you go on an overnight trip. Very unpleasant. Jerry --- On Mon, 5/17/10, Bryan Saulsbury <bs… [at] yahoo.com> wrote: From: Bryan Saulsbury <bs… [at] yahoo.com> Subject: Re: [Cal_Boats] Re: ventilation To: Ca… [at] yahoogroups.com Date: Monday, May 17, 2010, 1:55 PM I use Damp Rid and it really works great. Gets rid of smells and does not leave the cabin smelling like air freshner, just a clean scent. If you buy at WM its pretty pricey but I get online at Home Depot 3 bags for about $7 and that will last a season. I did run out and have some mildew growth to attend to now. From: Allen Edwards <allen.edwards@ PaloAltoPhoto. com> To: Cal_Boats@yahoogrou ps.com Sent: Sun, May 16, 2010 11:21:25 AM Subject: Re: [Cal_Boats] Re: ventilation I have the solar powered vents and like them but they break if you step on them. I looked at the stainless steel ones and they were just a thin steel cover over a plastic body, no better. I ended up buying some stainless steel pie plates at Amazon and cutting a hole in them for the solar panel and mounting them to the deck with stand-offs and screws. I can stand on them without a problem. Eventually the batteries go bad and you either replace the battery, which is a pain, or just have daytime powered vents, which is what I did. But, these vents (I have 2) did not prevent mildew. I got a "Stor-Dry" and am giving that a try. I used to run a heater but the safety aspect got to me when one of my crew plugged it in when it was still in the bucket with a bunch of rags. He thought it was the battery charger cord. Allen On Sun, May 16, 2010 at 7:47 AM, Paul <pwestla@aol. com> wrote: I am thinking about replacing the dorades on my Cal 39 with solar powered vents. Can anyone see a reason not to do this or have a better suggestion? I leave them off and capped right now for racing but would like to keep the boat ventilated without constantly removing and reinstalling them. Thanks Paul "Husar, Charlie [USA]" <husar_charlie@ bah.com> wrote: >Folks, whereas Exotic Lumber deals mostly in raw lumber (they can shape if you want it), there is another place I bought a some parts from recently for a CAL 25 rehab. It is Buck Woodcraft in Fla. They have a lot of moldings rails, and other finished teak products. Have not yet installed what I bought, but it looks like OK stuff sitting in my living room. Some of the molding items are AFI from Marinco. > >http://www.buckwood craft.com/ > >Just found them on the web during a teak search a while back. > >Cheers >Charlie

I started by using all 3, one in the anchor locker, one in the cabin and one down in the laz. Now I just have the one in the cabin. They dont leak at all but it does look wierd to see a bag of water hanging there. Bryan From: Harleigh Ewell <he… [at] comcast.net> To: Ca… [at] yahoogroups.com Sent: Mon, May 17, 2010 7:30:13 PM Subject: RE: [Cal_Boats] Re: ventilation Re Damp Rid: Do you use one bag at a time or all three at once? Does it leak liquid as it absorbs moisture? I too am wiping down the interior to get rid of mold. Harleigh From: Cal_Boats@yahoogrou ps.com [mailto:Cal_ Boats@yahoogroup s.com] On Behalf Of Bryan Saulsbury Sent: Monday, May 17, 2010 4:55 PM To: Cal_Boats@yahoogrou ps.com Subject: Re: [Cal_Boats] Re: ventilation I use Damp Rid and it really works great. Gets rid of smells and does not leave the cabin smelling like air freshner, just a clean scent. If you buy at WM its pretty pricey but I get online at Home Depot 3 bags for about $7 and that will last a season. I did run out and have some mildew growth to attend to now.

Reggie, Ventilation helps but only if the relative humidity is lower than about 75% as mold growth is still supported at that level. I have a Cal34 that stays in the water at my dock through the humid summer in SW Florida. I seal it up and run a small dehumidifier that drains into the sink. Never had any mold problems. Perhaps your boatyard will sell you power through the summer so that you could run one. Jim Cal34 Mk3 Eos