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 Post subject: Re: arbe's system
PostPosted: Feb 17th, '11, 04:29 
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Definitely go 90 if you can - I went 50 as my plumbing neighbor gave me the complete SLO after I asked him a few plumbing questions having never touched a pipe in my life. I was so excited coz it was exactly what I needed but now its in it only just drains with overflowing over the t section at top - not ideal but it works.

Nice looking tank! :wave1:

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 Post subject: Re: arbe's system
PostPosted: Feb 17th, '11, 04:38 
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:think: Will the aircon pose a problem for the plants if their directly across from it if its in use?

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 Post subject: Re: arbe's system
PostPosted: Feb 17th, '11, 07:27 
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Hi Arbe,

I'm running CHIFT PIST with a similar sized FT and when I put in a 40mm SLO everyone told me to go 90mm, the 40mm was already in and working so I didn't change it. Now that I am thinking of expanding I will need to increase the size of the over flow so I have been shopping around for the 90mm bulkhead fittings that everybody suggests you need. The only place I can find them is from rain water tank manufacturers/installers and even they have to order them in as they are really only used for large industrial applications, as a result they cost about $90.00 each :shock:

Despite all the suggestions I have never seen anyone on here using 90mm bulk head fittings so maybe it is all theorectical. F&F uses 90mm overflows but I think :?: he uses uniseals which might be a cheaper option, not sure if they work well on curved walled tanks though :think:

To over come this problem I will probably go for 2 x 50mm SLOs, while they won't be able to drain the same volume at the same rate as a 90mm one it will increase my drainage rate and two smaller SLOs mean I can place them in different areas of the FT for more efficient solids removal.

As for the pumps, the Grunfos is a good realiable brand and has a float switch (if you require one) but the pondmax is cheaper, cheaper to run and moves more water, not having has one I don't know how reliable they are but I am sure EB would not sell them if they weren't up to scratch.

What type of system are you going to run, auto siphons, timed F&D or constant flooded? as this will help determine what type of pump you need

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 Post subject: Re: arbe's system
PostPosted: Feb 17th, '11, 08:25 
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Zman wrote:
:think: Will the aircon pose a problem for the plants if their directly across from it if its in use?


I think it will Zman so there is a gap the size of the aircon unit between the tank and the first grow bed. It is a reverse cycle system so when it is cooling the house it pushes out a lot of hot air (with some force) towards the fence and when heating cold air.

Simo wrote:
As for the pumps, the Grunfos is a good realiable brand and has a float switch (if you require one)


The Grunfos is the one I have been leaning to because of the float switch: I feel it is a bit more 'fail proof' (ie if the piping or a grow bed springs a leak it wont pump dry and fail).

Simo wrote:
To over come this problem I will probably go for 2 x 50mm SLOs,


That is another thought I had - run 3 x 40mm pipe - one for each grow bed. The only problem I have with this is I plan to expand when I move to a larger block so this tank may have 10 beds attached...

Simo wrote:
What type of system are you going to run, auto siphons, timed F&D or constant flooded? as this will help determine what type of pump you need


I was going to run the three beds as constant flood until cycled and then a mixture of constant flood and siphon depending on water temp, water clarity, type of plant (some like constant flood while others dont). In short the pump will be running 24x7.

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 Post subject: Re: arbe's system
PostPosted: Feb 17th, '11, 09:22 
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Whatever size pipe you are using, I'd try and go for uniseals Arbe, they are brilliant, so simple to use, though sometimes you do need a bit of muscle to fit them.

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 Post subject: Re: arbe's system
PostPosted: Feb 17th, '11, 09:46 
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OK EB - where do I get them from?

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 Post subject: Re: arbe's system
PostPosted: Feb 17th, '11, 09:57 
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We got them from this mob I think..

http://www.uniseal.com.au/

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 Post subject: Re: arbe's system
PostPosted: Feb 17th, '11, 11:33 
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The link is down :(

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 Post subject: Re: arbe's system
PostPosted: Feb 17th, '11, 12:12 
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Link may be down, but there is still contact information.

Was about to post that I did a google search for uniseals and the link provided by EB never appeared - you have to search for uniseal for it to appear.

Now to send them an email to request a price list.

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 Post subject: Re: arbe's system
PostPosted: Feb 17th, '11, 13:11 
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Seriously, this cant be healthy.
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Heres what i used just cut rings from the ibc top and selasticed eachside


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 Post subject: Re: arbe's system
PostPosted: Feb 17th, '11, 13:15 
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Seriously, this cant be healthy.
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But in the future i will use these Bunnings about $5.00,, 90 mm fittings


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 Post subject: Re: arbe's system
PostPosted: Feb 17th, '11, 13:37 
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Food&Fish wrote:
But in the future i will use these Bunnings about $5.00,, 90 mm fittings


Not sure they will suit F&F as the tank is curved, but may be good to connect two IBCs I will be using as a sump.

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 Post subject: Re: arbe's system
PostPosted: Feb 17th, '11, 13:43 
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Seriously, this cant be healthy.
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What dia is the tank

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 Post subject: Re: arbe's system
PostPosted: Feb 17th, '11, 14:03 
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3 metres.

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 Post subject: Re: arbe's system
PostPosted: Feb 17th, '11, 14:48 
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For those interested I have received a reply from Uniseal which contained prices, specifications, installation etc.

If you are interested PM me and I will forward.

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