MarineBusiness-World.com
 
 
News Home Cruising USA Cruising Int Photo Gallery
Sail-World.com : A foul story - at war with the crustaceans
A foul story - at war with the crustaceans


'Blocked on the left, but see the oyster growing on the right'    .

Ley and Neil Langford, long time cruising sailors, are in South East Asia - tropical waters - on their yacht Crystal Blues. Here Neil tells the secrets they and their fellow cruisers have developed for keeping the local crustacean population from taking over their boat while stationary in a marina.

We're spending quite a bit of time in marinas these last few months, as I'm doing some contract work and Admiral Ley needs a safe home while I'm away from the boat.

This means that our sea water cooled refrigeration and airconditioning systems are running frequently in estuarine waters with a very high fouling capability.

Coming from a relatively cold water background, I'm still amazed at how quickly an anchor, or chain, or in this case a raw water inlet, can become completely fouled by marine growth in these warm water areas. The image at right shows the problem - the hose tail at left is almost closed with barnacles, and the hose tail at right has a decent oyster growing - just what we don't want.

When we look at the hose, the situation is obviously worse. Large clusters of barnacles and yet another oyster are almost completely blocking the inlet hose. Note this is 1.5' (40mm) hose, that feeds a manifold with multiple outlets for refrigeration, air conditioning, deck wash, genset etc.

Inlet hose 1 -  .. .  

To counter the problem we now place a chlorine tablet in our raw water strainer every other day, when we're in a marina. We use standard swimming pool chlorine tablets, that dissolve in just a few minutes after placement. These do a great job of stopping the growth from the strainer basket onwards, and they clean up the hoses really well, but they can't help with the hose and fittings that are in line before the strainer.

So now we replace that hose every twelve months - a half day boat project that keeps the systems running and my back and shoulders in fine trim (its a b**g*r to get at), and my knuckles suitably skinned. Boat jobs.

Along the west Malaysian coast, from Singapore to Langkawi and northwards into Thailand, this type of fouling is all to common.

In Kuah Harbour (Langkawi), the long term cruisers know that you must lift your anchor chain by 4 or 5 meters one day, and then lower it back again the next day, in a never ending alternating sequence, to stop the aggressive growth there from fouling the chain that is between the water surface and the muddy bottom.

This really does work, though nothing will stop the change to the chain galvanising caused by the very special mud in Langkawi. But that's another story.....

To learn more about Crystal Blues and her crew, to to their blogspot.

Crystal Blues doing what she’d rather do than be in a marina -  .. .   Click Here to view large photo


by Neil Langford, Crystal Blues

  

Click on the FB Like link to post this story to your FB wall

http://www.sail-world.com/index.cfm?nid=113070

9:01 PM Sat 10 Aug 2013GMT


Click here for printer friendly version
Click here to send us feedback or comments about this story.

Click for further information on
Practical

Related News Stories:

31 Jul 2013  Cleaning the cleaner: the Serious Pad Cleaner
26 Jul 2013  UK challenges EU over yachts ability to find diesel
23 Jul 2013  Rather clean your own hull - or sailing remotely? here's a solution
10 Jul 2013  New: Rail Pod allows easy retrofit of instruments in cockpit
24 Jun 2013  Mountain bike torch great for tough sailing conditions
22 Jun 2013  Coming soon - the latest MOB location gizmo
16 Jun 2013  Something to ponder - Is your GPS system 100% safe?
02 Jun 2013  Pocket Mariner launches nautical charts and navigation App
22 May 2013  Inverter Installation: Troublshooting 101
21 May 2013  Yacht Track Library - an ingenious new tool for cruising sailors
MORE STORIES ...






Cruising Canada









Springtime Greening: Boaters Tips for Earth Day by BoatUS Foundation/Sail-World Cruising,








How sailors really do have a voice in the future of our oceans by Sandra Whitehouse, Sailors for the Sea,


Message-in-a-bottle record - 102 years by AFP/Sail-World Cruising,










Canadian solo sailor rescued north of Auckland by Sail-World Cruising round-up,


















Free online fuel spill course - how much do you know? by BoatUS Foundation/Sail-World Cruising,












Life-shattering event sends 'rookie' couple sailing the world by Asia News Network/Sail-World Cruising,








3,200-year-old boat found in Croatian waters
Product of the Week: the LineGrabber
Mediterranean Mooring - How to moor stern-to to a dock or quay
Canadian storm bomb threat - sailors advised: get off the water!
Carbon monoxide poisoning - is it possible on YOUR boat?
Sailing family condemmed for taking 3-year-old on circumnavigation
New contract-free plan for satellite communicator on your smart phone
Yacht of the Week: The Dashew creation: no sails, but eco-friendly
No laughing! Sailing mistakes I don't want to make
Destination: From Moscow Sea to the White Sea
Land sailors of India on adventure across the Rann
A Paint App to (almost) replace your marine store assistant
Air warms but water slower - be careful, sailors, of hypothermia
Volunteer Canadian rescue team homeless - any offers?
Hilary Lister and Nashwa Al Kindi set a new trans-ocean record
How to anchor and 'never utter a word'
Non-pyrotechnic flares for my boat - Can I or can't I?
Health benefits of sailing
Cruising in the Maldives - some nuts and bolts
ISAF Guide to Offshore Personal Safety for Racing and Cruising
Halyard Tension - a video   
Winchrite - for lazy days or extra muscle-power   
Researcher examines 'current leaks' that may change the way you sail   
Paris off to attempt to circumnavigate the world again   
Need a tow from that helicopter? - watch the video and don't laugh   
Certain oil spill products shown to be ineffective and toxic + Video   
The Constrictor: a powerful 'Queen' of sailing knots!   
Boat painting - simple but best tips   
'It's never just one thing' - Swedish sailors rescued   
Book of the Week: From the Galley of...   
Two brave women to sail India to Oman across Arabian Sea   
Rhode Island's Classic Yacht Symposium - Registration opens   
Another rescue for second-time unlucky solo sailor   
New York to San Fran record attempt - Maserati reaches the Horn   
Finally the book:HMS Bounty, Disaster and Survival in Superstorm Sandy   
Yachts impounded in Mexico - the agony goes on...   
Students achieve robot boat Atlantic Crossing - but not as planned   
Solar vessel nominated for Engineers Prize   
Endurance Award for cruising sailors, new worldwide award for 2014   
It's coming. Dodgers/biminis to be solar power producers   


For this week's complete news stories select    Last 7 Days
   Search All News
For last month's complete news stories select    Last 30 Days
   Archive News







Sail-World.com  



















 
Our Advertisers are committed to our sport, please support them!
This site and its contents are © Copyright TetraMedia Pty. Ltd and/or the original author, photographer etc. All Rights Reserved.

Photographs are copyright by law. If you wish to use or buy a photograph you must contact the photographer directly (there is a hyperlink in most cases to their website, or do a Google search.) with your request.

Please do not contact Sail-World.com as we cannot give permission for use of other photographer’s images.

Only if the photographer named on the image is Sail-world.com, Powerboat-world.com, Marinebusiness-world.com or NZBoating-World.com.
Contact us .
Ph: +61 2 8006 1873 or complete our feedback form    Contact us .
   View our Privacy Policy.    [Go Home]     [  Banner Advertising Specification]    [Bot Archive ]

Customised news feeds -Marine Industry companies, Clubs and Associations have their own customised version of our news feed on their website.
Look_here_to_see_examples

X6XL NEW Cru CA