Graeme's 6x2x2 900L

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HK_Fuey

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Reply #60

Well the local reefer accepted my friend request, but hasn't replied to my private message asking when I could come and get the bits.  It was him that volunteered them to me in the first place...very strange.

I tried several plumbing merchants local to me, but none have 25mm rigid PVC fittings, so I've ordered them from here:
https://burscough-aquatics.com/aquarium-plumbing/25mm-pipe-fittings.html

Did the basic water tests today:
Ammonia 0
Nitrite 0
Nitrate 0
pH 8.0
SG 1.025

Happy with that after some much disturbance  :grin:
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HK_Fuey

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Reply #61

Ian made a point about not fitting the last parts of the return using PTFE tape (as I had in my previous tank) as the pressure could push the fittings off.  Fair point.  I decided to include a union, so I can change the angle of the return to sit just under the waterline, but I can seal it tightly with the union, rather than use tape.
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Marty

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Reply #62

They should not come off as technically there is no pressure built up its all free flowing

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Mike

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Reply #63

A duck bill would cause some back pressure, but I wouldn't bother with a duck bill, just restricts the flow. It might exit at higher velocity, but quickly disperses. A big fat column of heavy water ploughing into the tank will carry further IMO.

I had a 90 degree bend just pushed on in this, it never came off. I just applied a smear of silicone to the inside of the bend, then let that dry unattached, acted like a gummy grippy thing.
Last Edit: Apr 26, 2016 12:35:49 am by Mike
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Gardener in South Manchester

HK_Fuey

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Reply #64

I've ordered a couple of 90 degrees, a 45 degree, a straight coupling, some pipe, a union, and a 3/4" to 25mm converter.  I have tonnes of options to play with now  :glad:
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Marty

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Reply #65

The returns coming out of the centre of my rear pane just have the fittings pushed over the bulk heads they have had over a year to come off. As long as you never get a resistance which you won't there is no physical way they can fly off

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HK_Fuey

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Reply #66

The parts arrived.  Fitted using PTFE and feels nice and tight.  Got it all running now, with about 2-3mm spare depth in the sump :glad:  Really nice to see it running properly now.  I think I will be doing a mod on the weir height to save some space in the sump.

My Jecod RW-20 was way too powerful for my 4fter.  I had to turn it down to 1 out of 10, and change the mode to the least aggressive changes to stop it blowing my sand around.  I had LPS on the oposite side of the tank, that really didn't like the fast flow.  However, in this tank it's turned up to 10, on Else to provide chaotic flow, and there are huge areas where there's barely any flow.  That exta two feet, make a huge difference in how the flow spreads out.  Going to have to look at more powerheads.  I'm thinking about a Jecod Cross Flow - anyone got one?
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HK_Fuey

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Reply #67

Jecod CP-40 cross flow ordered  :grin:
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Steve's Marines

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Reply #68

What's the price and performance difference with the Gyre mate?
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HK_Fuey

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Reply #69

Jecod CP-40 £99.44 delivered
Maxspect Gyre XF150 £214.99 delivered

From a guy that's local to me that has both:
Quote
i have one plus a maxpect 150 the jecod is just as good and less than half the price
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Steve's Marines

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Reply #70

Where can I get one? I'm looking on eBay.
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HK_Fuey

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Reply #71

Jebao WiFi Cross Flow Pump CP-40
I didn't bother with the WiFi option, as once it's set, that's it.  Seems a gimmick to me.
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Steve's Marines

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Reply #72

Thanks for that, they really blow the price of the Maxspect out of the water.
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HK_Fuey

  • Graeme
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Reply #73

Updated fts.  Video coming soon  :P
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Steve's Marines

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Reply #74

Very nice job *D
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