"Charles" wrote in message
...

I had one held together with wax, looked like bee's wax. I decided
that when I rebuilt it that if I put hot water in it, that would
soften the wax and let the glass seal better.

that was a bad idea, the wax melted and the water ran all over.

Well that gives me peace of mind - I worry about silicone sealants being
able to hold 200L back - hehe!!

Oz

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My Aquatic web Blog is at http://members.optusnet.com.au/ivan.smith