On Friday, Dec 19, 2003, at 11:44 US/Pacific, SavanaPics@AOL.COM wrote:

> to a point of where 495' is  235.2 psi  That is a lot of pressure
> on plastic not to mention the seals and glass mounting for the cover.
> If you
> look at the pressure rating on the PVC I don't think it will  handle
> this,
> depending on whether you use schedule 40 or 80 vs the pvc diameter.

very hard to say.  PVC is in that pressure range, at least for the
smaller diameters, but it's rated based on the high pressure being
on the INSIDE...

When i was a kid, we made an underwater habitat for a mouse.  nothing
too fancy; just designed to sit at the bottom of a garbage can full of
water.  It was very educational, along the lines of "it needs HOW much
weight to hold it down?" and "we've got GOBS of silicone on there, how
come it's still leaking?"  The mouse, however, survived...

BillW

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