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Old 15-01-2019, 12:12   #31
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Re: Fiberglass tank refit - should I cut it open?

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Originally Posted by kmacdonald View Post
Add a smaller tank for drinking and cooking water and just bleach the other tanks.
That's actually not a bad idea!!! the only downside to it is that we will probably need another pump/faucet... we will end up with three: salt water (from ocean), potable water (from new small tank) and water (from bleached and existing tanks)
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Old 15-01-2019, 15:56   #32
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Re: Fiberglass tank refit - should I cut it open?

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Looks good. Do you want to add a tank sender unit and gauge whilst your at it?

Just done this to our tank to take the guess work out and having to lift all the cushions to see into the clear inspection port.

Pete

With a water tank I'd tap into the bottom of the tank and attach a bit of food grade clear tubing up the side of the tank and use it as a "sight gauge".
(Doing that with a fuel tank would be dangerous of course)


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Old 15-01-2019, 16:06   #33
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Re: Fiberglass tank refit - should I cut it open?

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Originally Posted by coopec43 View Post
With a water tank I'd tap into the bottom of the tank and attach a bit of food grade clear tubing up the side of the tank and use it as a "sight gauge".
(Doing that with a fuel tank would be dangerous of course) Clive
It's not dangerous on a diesel tank, and is quite common. The proper approach is to thread in shutoff valve, top and bottom, with a length of clear polycarbonate tube between them, protected from accidental damage. The valves are normally closed and only opened for checking fuel level.
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Old 15-01-2019, 16:13   #34
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Re: Fiberglass tank refit - should I cut it open?

Maybe in the US of A a similar product to Crommelin's Water based bitumen is called "Liquid Rubber"?

https://duckduckgo.com/?q=potable+wa...+a&t=h_&ia=web


https://duckduckgo.com/?q=potable+wa...+a&t=h_&ia=web


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Old 15-01-2019, 16:21   #35
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Re: Fiberglass tank refit - should I cut it open?

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Originally Posted by Terra Nova View Post
It's not dangerous on a diesel tank, and is quite common. The proper approach is to thread in shutoff valve, top and bottom, with a length of clear polycarbonate tube between them, protected from accidental damage. The valves are normally closed and only opened for checking fuel level.
What I was suggesting Leveche40 do on his water tank would be bloody dangerous on a fuel tank without the taps/valves but they cost around $A300.

I specifically didn't mention taps/valves on the water tank because they are not necessary.

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Old 26-01-2019, 17:33   #36
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Re: Fiberglass tank refit - should I cut it open?

Good evening everyone!

Here is an update on the water tank refit project: https://doctorsailboat.com/2019/01/2...d-water-tanks/
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blisters, drinking water, epoxy, fiberglass, potable water, refit, tanks

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