Solids in the water tank

[Oceanis 440 NY]

Hi All,

Cleaned out the water tanks (to the best of my ability) and found these pieces of ??? In the tank. I have not refilled them yet. Was going to add a bit of chlorine to a gallon or two to slush around for a week before emptying and filling again. Should I be concerned that the tanks will now leak? Any idea if this is important to the structure of the tank? Thanks all!

 

[kloudie1]

Poly tanks? Looks like that might be stuff left in the mold (forming mold, not the growy kind) at manufacture..

 

[Oceanis 440 NY]

Thanks. I’m also putting a call out to Beneteau. I meant to say bleach, not Chlorine.

 

[Benny17441]

Looks like debri left over from the manufacturing process. Let us know if Benetau says other than they purchase the tanks from a third party and "it happens".

 

[rgranger]

Hi All,

Cleaned out the water tanks (to the best of my ability) and found these pieces of ??? In the tank. I have not refilled them yet. Was going to add a bit of chlorine to a gallon or two to slush around for a week before emptying and filling again. Should I be concerned that the tanks will now leak? Any idea if this is important to the structure of the tank? Thanks all!

View attachment 164769

From your title... I was expecting a much nastier find in your tanks....

 

[Captain Larry-DH]

Use one cup bleach per 10 gallons. Run it through each faucet until you smell it coming out. Let sit 8 hours but not more than 24 hours. Especially if you have metal tanks. The stuff is corrosive. Then empty the system. Fill, empty, then fill again.
Done.

 

[Oceanis 440 NY]

Looks like debri left over from the manufacturing process. Let us know if Benetau says other than they purchase the tanks from a third party and "it happens".

Spoke to Beneteau this morning. On the 440 the bottom and sides of the water tanks are molded into the hull with a recess for the tops of the tanks to be affixed. They affix with a large amount of adhesive. Over time the overage that oozes our from installation may come loose but should not affect the tank’s integrity. Problem solved.

 

[Justin_NSA]

From your title... I was expecting a much nastier find in your tanks....

We think alike. Scary.

 

[Justin_NSA]

Not what I was expecting. On the subject, Practical Sailor had an article on thru hull water tank vent filters to keep out our little crawly friends. I have yet to add one. This could be the year!
https://www.practical-sailor.com/issues/37_54/features/Filters-for-Water-Tank-Vents_11707-1.html

 

[Oceanis 440 NY]

Not what I was expecting. On the subject, Practical Sailor had an article on thru hull water tank vent filters to keep out our little crawly friends. I have yet to add one. This could be the year!
https://www.practical-sailor.com/issues/37_54/features/Filters-for-Water-Tank-Vents_11707-1.html

I have one on each line.

 

[Justin_NSA]

I have one on each line.

Do you ever trap anything in them?

 

[Oceanis 440 NY]

Do you ever trap anything in them?

Yes. Have to clean out at the beginning of each season.

 

[Justin_NSA]

Yes. Have to clean out at the beginning of each season.

Good to know. For the rest of us, this stuff is getting into our tank(s)