SailNet Community - View Single Post - Fresh Water System Cleaning and Maintenance
View Single Post
post #2 of Old 07-12-2004
Senior Member
RichH's Avatar
Join Date: Jul 2000
Location: Pennsylvania
Posts: 3,640
Thanks: 25
Thanked 172 Times in 161 Posts
Rep Power: 17
Fresh Water System Cleaning and Maintenance

Its the flow dynamics of a cubcial tank.....

The flow characteristics through a cubical tank will leave ''dead zones'' that will take zillions of gallons of flush water to remove/dilute any residual. Most flat bottomed tanks & water heaters will not totally empty when mounted level ... always leaving a little bit of residual no matter how well you think you drain them (only way is to remove & rotate them .... too much problem on a boat).

Do an ''alliquot'' (a mathematical ''trick'' in dilution technique) washing to QUICKLY dilute the residual anti-freeze: fill tank with a few gallons, remove lowest freshwater pipe connection/check-valve and let totally drain (or pump DRY), re-fill with a few gallons into the tank, remove etc.... do several/many times. This will rapidly dilute (mathematically called: exponential decay dilution) the antifreeze that remains.
RichH is offline  
Quote Share with Facebook
For the best viewing experience please update your browser to Google Chrome