We can help stop Didymo
Posted: Sat May 05, 2007 10:05 am
Probably we should now carry in our vehicles,
A 5 litre Pressure Spray unit with a mixture of Water and 5% detergent premixed. That way at the completion of river trips on the river bank before leaving we can Check, Clean & Dry.
Also note in any one day a river trip should only be in one river system, so say doing a trip in the Waipara, then do not stop of and drop into another river on the way home.
The following will be of interest of 4WD people It was been circulated before I think, however a reminder to us all is not a bad thing:-
Information for 4WD Vehicle users:- (please visit http://www.biosecurity.govt.nz/didymo )
Before leaving a waterway,
Check: check items for clumps of algae. Leave any debris that is found at the waterway.
Clean: Clean all items for at least one minute with one of the following:
• Hot (60°C) water
• 2% solution of bleach
o A 2% solution is 200ml of product with water added to make ten litre
• 5% solution of salt
• 5% solution of dishwashing liquid
• 5% solution of antiseptic handcleaner
• 5% solution of nappy cleaner
o A 5% solution is 500ml or 2 cups, with water added to make ten litres.
All these items can be found at your local supermarket. We recommend that you use products that are biodegradable.
Dry: If cleaning is not practical, dry the item to the touch and then leave drying for an additional 48 hours.
Specific cleaning methods have been developed for some freshwater activities.
Vehicles should be cleaned thoroughly, including spraying the underside of the vehicle, tyres and any other parts of the vehicle that have had contact with water with a decontamination solution. Use a solution of 5% detergent. Commercial carwashes with an underside spray would be suitable.
The decontamination solution should be left on for at least one minute and may then be rinsed off with water that has come from a town water supply.
Tyres Tyres which have backed into streams or been used for stream crossings must be carefully checked for clumps within the treads and then scrubbed, soaked or sprayed and flushed with a decontamination solution of 5% dishwashing detergent, ensuring that there is a contact time of at least one minute. They may then be rinsed using water that has come from a town water supply.
Paul
A 5 litre Pressure Spray unit with a mixture of Water and 5% detergent premixed. That way at the completion of river trips on the river bank before leaving we can Check, Clean & Dry.
Also note in any one day a river trip should only be in one river system, so say doing a trip in the Waipara, then do not stop of and drop into another river on the way home.
The following will be of interest of 4WD people It was been circulated before I think, however a reminder to us all is not a bad thing:-
Information for 4WD Vehicle users:- (please visit http://www.biosecurity.govt.nz/didymo )
Before leaving a waterway,
Check: check items for clumps of algae. Leave any debris that is found at the waterway.
Clean: Clean all items for at least one minute with one of the following:
• Hot (60°C) water
• 2% solution of bleach
o A 2% solution is 200ml of product with water added to make ten litre
• 5% solution of salt
• 5% solution of dishwashing liquid
• 5% solution of antiseptic handcleaner
• 5% solution of nappy cleaner
o A 5% solution is 500ml or 2 cups, with water added to make ten litres.
All these items can be found at your local supermarket. We recommend that you use products that are biodegradable.
Dry: If cleaning is not practical, dry the item to the touch and then leave drying for an additional 48 hours.
Specific cleaning methods have been developed for some freshwater activities.
Vehicles should be cleaned thoroughly, including spraying the underside of the vehicle, tyres and any other parts of the vehicle that have had contact with water with a decontamination solution. Use a solution of 5% detergent. Commercial carwashes with an underside spray would be suitable.
The decontamination solution should be left on for at least one minute and may then be rinsed off with water that has come from a town water supply.
Tyres Tyres which have backed into streams or been used for stream crossings must be carefully checked for clumps within the treads and then scrubbed, soaked or sprayed and flushed with a decontamination solution of 5% dishwashing detergent, ensuring that there is a contact time of at least one minute. They may then be rinsed using water that has come from a town water supply.
Paul
. at my last job at OPC i installed 2 salt water tanks that every thing that went into the water went into like kayaks shoes life jackets canoes etc .every group would do it when they got back , and if they were crossing more than 1 river each day they would carry a bleach solution with them ,and they have been doing that for probaly 2 years or more, it is a pity more people didnt take as seriously as it sounds like we have river snot here now and in the rivers that surround my house whakapapa and wanganui rivers. 
