Re: Fed up with python no spill performance - any one know where I can get an aquarium safe garden hose?

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Bottom posted.

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"David C. Stone" <no.email@xxxxxxxxxxx> wrote in message
news:281120050813379231%no.email@xxxxxxxxxxxxxx
> In article <iktif.1395$wf2.118663@xxxxxxxxxxxxxxxxxxxxx>, NetMax
> <computeralias@xxxxxxxxxxx> wrote:
>
> [snippety-snip]
> >
> > There are applications where the Python is not very efficient, so
without
> > seeing your setup, I'll presume that's the case and you don't
have
> > something which has clogged up the intake hose at the vortex
connection.
> > In regards to hoses, avoid black rubber, as there has been a
toxicity
> > link between that and fish. Generally all other hoses would be
safe,
> > except that they have started introducing fungicide into some
> > plastic/vinyl products (I don't know if they use it on garden
hoses), so
> > an RV hose or anything noted for potable water would be safe. I
think
> > very old hoses are good too, and just flush them before filling
(which is
> > usually easy, cause you drain the tank first ;~). The connectors
are
> > often brass which is ok. Even copper (poisonous to fish)
connectors
> > would probably be fine if the hose was flushed first, as it takes
some
> > time and/or low pH for metal to leech. That's just my opinion
though. I
> > don't know if the heavy metals neutralized by some de-chlors
works on the
> > metals you're worried about, but I imagine it wouldn't hurt ;~).
>
> I don't think you'd need to worry about copper leaching from brass
> hose fittings in this case - you have copper pipe in your domestic
> water supply anyway, and much more of it. The only way to leach
more
> copper than is already in the water would be to put strong acid
through
> it, which would be more harmful to your fish than the copper
leachate.
>
> To put that into perspective:
> The guy who runs our analytical services lab. has occasionally
done
> tests for copper in tap water leaching out of the pipes. It is
> detectabe at trace (part per billion) levels if the water has been

> sitting in the pipe for a while (e.g. a week), but drops below
> the detection limit pretty quickly once the water starts flowing.
> That's also far below any toxicity threshold for copper.
>
> In short, unless your water is so acidic that you shouldn't be
putting
> it in your fish tank anyway, you shouldn't worry about copper
leachate.
>
> (High ammonia levels would also leach copper, but your fish would
> again likely be dead from the ammonia before you got noticeable
levels
> of ammonia-copper leachate)

Thanks dave and rocco! I plan on getting new hoses instead of buying
yet another water powered water pump which wouldn't help. Good luck
and later!

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