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 Post subject: Media bed stand
PostPosted: Oct 16th, '18, 07:48 
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Joined: Aug 31st, '18, 09:36
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Location: USA Austin Texas
I’m looking to build a metal stand for 2x 100 gal media beds and I’m looking for what type of pipe I would need? Schedule 40 or 80 . This is for a high school
Thank you


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 Post subject: Re: Media bed stand
PostPosted: Oct 16th, '18, 20:29 
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Hi Chefflee,

There are a few threads around that deal with metal stands...
look at this post > viewtopic.php?f=8&t=29944 there are a heap of links in my post at #4.
(links at bottom of list discuss galvanised circular pipe)
also viewtopic.php?f=8&t=10024

Not sure on what your Schedule 40 or 80 translates to...
(so non USA people may have an issue answering your query)

But 2 x 100 Gallons = 2 x 400 litres (or so) => ~800 litres
Water weight will be around 60% => ~500kg
Media will depend on what you use, rock can be as high as 1.6-2kg/litre
so you are looking at around 400-600 kg.
Clay would be less around 140-200kg (assuming 12x 30 Litre bags)

so you have a load weight of 700-1200 kg depending on media.
I guess that is around 1500-2500 pounds.

40mm nb pipe would be minimum, 50mm nb better. With decent wall thickness.
Guess based on https://www.engineeringtoolbox.com/ansi ... d_305.html
(the pic looks about right) that is Sched.40 1.6" to 2" pipe (internal diameter).
Of course more legs = less pipe spec's.

Most shelving steel (warehouse racking) would also easily be fine.

apologies about the metric numbers....

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 Post subject: Re: Media bed stand
PostPosted: Oct 16th, '18, 23:50 
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Schedule 40 would be what you need. 50mm = 2" PVC here in backwards land where we still use imperial :)

My general recommendations are: 1" for pressurized lines coming from your pump, 2" for gravity draining lines. I don't think you'd need it for this size system but if you have several 2" lines combining into one have them go into 3"

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