How to clean your water tank

Pgitug · Dec 29, 2016

We purchased a 2002 Nordic Tug last year. I replaced the water hose from the aluminum water tank to the electric water pump. Eight months later I look at the hose and find that the inside has a thin coating of scum in it, the color of toupe.
There is not an access hatch that you can open and inspect the inside of the tank. So my question is this. How do you clean out a 14 year old water tank?

gaston · Dec 29, 2016

http://www.trawlerforum.com/forums/s30/bad-water-new-boat-29615.html

HopCar · Dec 29, 2016

JDCAVE · Dec 30, 2016

Be aware that chlorine is highly corrosive to aluminum. At the very least, be careful how much you add. I'd suggest doing a test with aluminium foil in the time of exposure and concentration you wish to use.

CaptTom · Dec 31, 2016

Hey, HopCar, is that stuff safe for aluminum tanks?

HeadMistress · Dec 31, 2016

We seem to have two threads covering the same subject. The other one has already done so in considerable detail: http://www.trawlerforum.com/forums/s30/bad-water-new-boat-29615.html

HopCar · Dec 31, 2016

CaptTom, it is much safer on aluminum than bleach. In the Practical Sailor test they put aluminum discs in solutions of bleach and Purisan. The bleach solution did a lot more damage than the Puriclean.

Both use chlorine as the active ingredient but there is something in Puriclean that protects the aluminum. I asked the manufacturer of Puriclean why it didn't damage aluminum and I got a long explanation that I couldn't really understand.
He talked to me like I hadn't slept through high school chemistry.

How to clean your water tank

Pgitug

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gaston

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HopCar

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JDCAVE

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CaptTom

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HeadMistress

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HopCar

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