What's the point of anti fouling?

NUTMEG

NUTMEG

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www.theblindsailor.co.uk
Linked to another thread here. I antifouled Alex at the start of the season. There us now so much weed and barnies that I am drying her out next week for a clean. Next season I am seriously considering grit/sand/soda blasting followed by a good polish and just dry out a couple of times each season for a scrub. Boat is only 22' and bilge keeler. What is the collected wisdom? does anyone else do this?
 
With no antifouling you will need to be scrubbing weed off weekly, not every couple of months. If drying out for a scrub is easy, use a hard scrubbable A/F. If not stick with the usual soft ablating A/F as it's the least rubbish way of keeping weed and barnacles away.
 
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Sophie19 said:
Linked to another thread here. I antifouled Alex at the start of the season. There us now so much weed and barnies that I am drying her out next week for a clean.
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Are you using the right antifouling for your area?

Apart from a line of the thin hair-like green weed along the waterline on the sunny side, my boat comes out of the water clean at the end of the season. And the thin stuff is easily brushed off from above once or twice a season.
 
Not sure

I use whatever the marina sold me. I assume that it is the right stuff fir the area. Hanging over the stern I can make out masses of weed over a foot below the waterline. Also the engine is smoking (black) at full throttle so I suspect the prop is barnied!
 
Sophie19 said:
I use whatever the marina sold me. I assume that it is the right stuff fir the area. Hanging over the stern I can make out masses of weed over a foot below the waterline. Also the engine is smoking (black) at full throttle so I suspect the prop is barnied!
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ask other boaters what they use, the marina will stock most products except Jotun
 
When I was at Tollesbury and Mersea prior to that I always used Blakes Tiger and that always seemed to work for me.

I always had two coats and at the end of the season I'd have a green slime on the bottom of the boat.

When I antifoul again on my new boat I'll be using Blakes Tiger.
 
Flag?

I am fairly sure it was Flag that the yard put on. Waste of money around my bit of the Blackwater. I gather from the lack of response that everyone uses anti fouling of some type then. B****r!
I have best part of a can of Blakes in the shed, I suppose I should slap that on next week then :(
 
Sophie19 said:
I am fairly sure it was Flag that the yard put on. Waste of money around my bit of the Blackwater. I gather from the lack of response that everyone uses anti fouling of some type then. B****r!
I have best part of a can of Blakes in the shed, I suppose I should slap that on next week then :(
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The budget Flag at around 30 quid is not good. However, the Flag Performance is much better. At least 2 coats, we only scrub oce mid season.
 
Chili powder

The quality of the antifouling ... you get what you pay for... I use Micron Extra with a very hefty dose of chili powder. I was recommended it by someone who has used it for years. His boat comes out every two years for a light hose down... its awesome stuff. I tried it with that mix on the hulls and NO chili in the mix I used for the rudders, I had to really scrub off the rudders, not so the hulls...
 
FWIW and as I have already alluded to, certainly in Brightlingsea this year, it really doesn't seem to matter what you are using.

Most boats if left unused for a week or two seem to be growing a rather fetching waterline 'fringe' of a pinkish coloured weed.

For reference, this season I have used XM3000 and the boat the other side of the pontoon is using Tiger...we are both cursing this unusual weed growth this year!
 
Interesting

I think I paid a bit more then £30! Still, point taken, like everything I suppose, you get what you pay for:)

Drying out this coming week with a bit of luck so will look into a 'quality' brand. Think the missus has some chilli powder in a cupboard too.

Had a very nice sail today, got back to the marina, shut the raw
water seacock, and the handle fell off in my hand. One step forwards and two backwards!
 
catsailor said:
The quality of the antifouling ... you get what you pay for... I use Micron Extra with a very hefty dose of chili powder. I was recommended it by someone who has used it for years. His boat comes out every two years for a light hose down... its awesome stuff. I tried it with that mix on the hulls and NO chili in the mix I used for the rudders, I had to really scrub off the rudders, not so the hulls...
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I add some round up weed killer to it as well,
It works
 
nauticalnomad said:
I add some round up weed killer to it as well,
It works
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From Wikipeadia:

Aquatic effects
Fish and aquatic invertebrates are more sensitive to Roundup than terrestrial organisms.[32] Glyphosate is generally less persistent in water than in soil, with 12 to 60 day persistence observed in Canadian pond water, yet persistence of over a year have been observed in the sediments of ponds in Michigan and Oregon.[11]
The EU classifies Roundup as R51/53 Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.[33]
Although Roundup is not registered for aquatic uses[34] and studies of its effects on amphibians indicate it is toxic to them,[35] scientists have found that it may wind up in small wetlands where tadpoles live, due to inadvertent spraying during its application. A recent study found that even at concentrations one-third of the maximum concentrations expected in nature, Roundup still killed up to 71 percent of tadpoles raised in outdoor tanks.[36]
A 2010 study has found that long-term exposition to environmental relevant concentrations of a Roundup formulation causes metabolic disruption in the fish leporinus obtusidens.

GIT!!

I suppose it doesn't matter if the sea we sail on has nothing in it - as long as our boats are clean !!!!!!!!!!!!!!!!!

Please don't wear gloves when mixing this........................
 
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Cor...

...and I get environmental angst from the barnacle friendly anti foul I use. I would rather dry out and scrub than put Roundup in the river.

Chilli flavoured oysters I can live with but Roundup flavoured ones? I think not.
 
BAtoo said:
From Wikipeadia:

Aquatic effects
Fish and aquatic invertebrates are more sensitive to Roundup than terrestrial organisms.[32] Glyphosate is generally less persistent in water than in soil, with 12 to 60 day persistence observed in Canadian pond water, yet persistence of over a year have been observed in the sediments of ponds in Michigan and Oregon.[11]
The EU classifies Roundup as R51/53 Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.[33]
Although Roundup is not registered for aquatic uses[34] and studies of its effects on amphibians indicate it is toxic to them,[35] scientists have found that it may wind up in small wetlands where tadpoles live, due to inadvertent spraying during its application. A recent study found that even at concentrations one-third of the maximum concentrations expected in nature, Roundup still killed up to 71 percent of tadpoles raised in outdoor tanks.[36]
A 2010 study has found that long-term exposition to environmental relevant concentrations of a Roundup formulation causes metabolic disruption in the fish leporinus obtusidens.

GIT!!

I suppose it doesn't matter if the sea we sail on has nothing in it - as long as our boats are clean !!!!!!!!!!!!!!!!!

Please don't wear gloves when mixing this........................
Click to expand...

I wondered why i hadnt seen any tadpoles or south american plant eating fish around the marina!
 
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