Spot Cleaning

[Priscilla II 459]

How exactly do you “spot clean” one of these polluting behemoths once it’s rocked up with a dirty bum.

https://www.poal.co.nz/news-media/port-of-auckland-to-progress-in-water-niche-biofouling-prototype?fbclid=IwY2xjawM-dRxleHRuA2FlbQIxMABicmlkETEyMjZDQlRGbEVYaTV3VXpOAR7KEwczR-AZ0k5tiSOQ9ruVwy4SMVXr056a_u05dSwvPPeJsrThpI-aukYPqQ_aem_cQTvf-9erJREmmT4b3NbiQ

[alibaba 85]

I wonder how many 'yacht equivalents' that surface area is with regard to fouling.

Also, where does their sewage go? 

I have to say I feel a bit aggrieved when my yacht is being inspected for fouling when we allow these in. And I'm not sure that they

really contribute to the economy - meals are on board etc. According to my retail friends in Devonport, they visit but don't spend.

 

[K4309 439]

It's all a joke really. Regional Councils don't have any power or authority over international shipping, but they are mandated to 'manage' biosecurity, which means the only people they can regulate is us (recreational boaties). That means we cop all of the biosecurity measures and become the whipping boy, while one ship can have the same impact as maybe 1,000 dirty 28 footers.

But moving on to some possibly practical options, the problem with ships are almost always the sea chest. The heat exchanger part in a pocket in the hull. I suspect NZ Diving and Salvage have developed some new tools from the caulerpa gravy train. We have always thought you can only clean a hull by mechanical cleaning (scraping, water blasting) cause that is all we have ever done.

With the caulerpa thing, they are developing UV light booms and better methods of applying and containing chlorine. I expect that both could be an effective way of sterilising a sea chest. Certainly be a better solution than trying to send ships out to the 12 mile limit and then get divers with a broom and a scraper to give them a tidy up.

[Murky 3]

20 hours ago, alibaba said:

I wonder how many 'yacht equivalents' that surface area is with regard to fouling.

Also, where does their sewage go? 

I have to say I feel a bit aggrieved when my yacht is being inspected for fouling when we allow these in. And I'm not sure that they

really contribute to the economy - meals are on board etc. According to my retail friends in Devonport, they visit but don't spend.

 

Cruise industry believes it is equally aggrieved about the ways in which it is asked to comply and has been lobbying the Government strongly for a while. At least one high-profile instance of a cruise ship being fully turned away from NZ when it couldn't/wouldn't take steps to comply with the biofouling regs, with some disruption to the ports that were expecting them to arrive:

Answers to some of your other questions in here:

https://www.rnz.co.nz/news/thedetail/571268/mayday-call-for-new-zealand-s-sinking-cruise-industry

[waikiore 507]

And as I drove past the other day -Okahu Hardstand still largely empty, no one maintaining boats or learning how to and they have legislated good copper antifoul out -except for on ships of course!! Goodness I am getting old and cynical

[Ed 153]

1 hour ago, waikiore said:

And as I drove past the other day -Okahu Hardstand still largely empty, no one maintaining boats or learning how to and they have legislated good copper antifoul out -except for on ships of course!! Goodness I am getting old and cynical

 

Thats because the local board decided they didn't want a maintainence hardstand. There was an offer on the table to operate it and the board voted 6-1 to reject it. 

Standard example of local boards ignoring regional requirements in favour of a very nimby outlook.

Same thing happened in LSB.

[Priscilla II 459]