WATER TANKS - What to do, what to do?

[coopec43]

Originally Posted by GILow

All these links and quotes are fine, but what do they have to with the original question?

You can't be serious?

[GordMay]

Originally Posted by GILow

... here in Australia, I use Sikalastic 560 for my tanks ...
Sikalastic 560 is Australian/NZ Standard 4020 certified for water storage...

SikalasticR-560 is a cold applied, one component, Polyurethane modified Acrylic Dispersion, waterborne liquid applied waterproofing membrane, highly elastic and UV-resistant, primarily used in roofing.
Approved in accordance with AS 4020 and AS 4858 - Approval for Use in Potable Water and Wet Area applications.
➥ https://diy.sikaretail.com.au/produc...ikalastic-560/
➥ https://aus.sika.com/content/austral...15sa12104.html

[gonesail]

Originally Posted by Hoodsail

As to boat plumbing, can recommend 1/2 inch pex tubing (red 4 hot, blue 4 cold) with press on plastic (shark bite) connectors. Can be easily disconnected/reconnected by hand but must be able to use some force so close quarters connections with tight access are a challenge.

yes I had to fix a leaking polybutylene hose with pex and used this flared connector which works with either product. always a challenge fixing the older boats

[GILow]

Originally Posted by GordMay

SikalasticR-560 is a cold applied, one component, Polyurethane modified Acrylic Dispersion, waterborne liquid applied waterproofing membrane, highly elastic and UV-resistant, primarily used in roofing.
Approved in accordance with AS 4020 and AS 4858 - Approval for Use in Potable Water and Wet Area applications.
➥ https://diy.sikaretail.com.au/produc...ikalastic-560/
➥ https://aus.sika.com/content/austral...15sa12104.html

Smells a bit like lemons when it is curing too. Gives the whole water tank a G & T vibe.

[coopec43]

Originally Posted by GordMay

SikalasticR-560 is a cold applied, one component, Polyurethane modified Acrylic Dispersion, waterborne liquid applied waterproofing membrane, highly elastic and UV-resistant, primarily used in roofing.
Approved in accordance with AS 4020 and AS 4858 - Approval for Use in Potable Water and Wet Area applications.
➥ https://diy.sikaretail.com.au/produc...ikalastic-560/
➥ https://aus.sika.com/content/austral...15sa12104.html

GILow
All these links and quotes are fine, but what do they have to with the original question? __________________

[GILow]

Originally Posted by coopec43

GILow
All these links and quotes are fine, but what do they have to with the original question? __________________

Actually, Gord, as usual, was providing relevant data.

The OP had scungy old tanks and one very simple and practical solution is to clean them and coat them with something safe. Gord has kindly linked such a coating product sold here in Australia that is suited to this purpose.

You, however, are posting a whole load of stuff about why you shouldn’t build tanks from fibreglass and epoxy. (And most of it doesn’t really say that anyway).

The OP’s tanks are already built. They are not building tanks. They just wanted to clean them and make them safely useable again.