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  #1  
Old 04-16-2009, 02:37 PM
JJE JJE is offline
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Pond liner vs roofing membrane

I gotta ask this - anyone ever cheat and use the rolled roofing membrane in a pond with fish? Did it work out or kill off the fish?

There's 2000 s/f of the stuff I can have for $300 or .15 s/f. Mighty cheap vs what I pay for the 45 mil pond stuff
He says some guys been using it and they never had a problem but I guess I'm a bit skeptical. Or is the fish safe thing over blown?

Thanks
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Old 04-16-2009, 10:06 PM
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XStream Aquatics XStream Aquatics is offline
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Firestone extrudes pond liner in one facility and roofing in another, kinda makes you think huh? I wouldn't put my rep on the line for sure!!
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Old 04-17-2009, 09:12 AM
JJE JJE is offline
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yep it sure does.
I was searching all over last night and it seems the actual components of compounds are the same but in what percentages, etc I have no idea.

I still might pick it up and stash it - if someone says they will never have fish, willing to sign off saying they know the thing is unkown if it is safe for fish, then I would be okay using I think. I know it doesn't harm plants, or frogs for that matter since I know of 3 installs that used the stuff and are older installs at that. I'd forgotten about those until I called a guy who did them.

Thanks for the feedback
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Old 04-17-2009, 03:39 PM
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STL Ponds and Waterfalls STL Ponds and Waterfalls is offline
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From what I've heard the roofing liner has antibacterial agents on the liner to keep bacteria and other stuff from growing on the roof surface.

I would pick the liner up and use it for pondless waterfall projects.
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Old 04-17-2009, 09:49 PM
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XStream Aquatics XStream Aquatics is offline
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Awesome point STL!!!!!!!!!!!!
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Old 04-19-2009, 07:11 PM
JJE JJE is offline
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picked the thing up yesterday - great point on the pondless idea!

I see that Mills Fleet Farm has ad in paper today for whatever the brand of roofing membrane they carry is - the ad sates in large print it's all aquatic safe. Interesting. I'll be around one of their stores tomorrow and gonna stop in to see mfg name and what they claim on warranty in the brochure. Couple forums still have those who claim they commonly use the stuff in koi ponds. Like anything in life I bet it's mfg specific thing.

Sure could cut the liner costs way down if it was guaranteed to be safe. Them words would cover ones butt just in case.

That pondless idea just didn't register at all. thanks
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