Came with a guide!!
Excellent cut there buddy!
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Came with a guide!!
Excellent cut there buddy!
Thanks, I've cleaned it and it looks pretty good.
Looking forward to the plumbing and backing turning up tomorrow!
As expected, this being England, companies can't do what their supposed to do, the acrylic backing and weir cover/comb turned up today.
The side panels for the back of the tank, either side of the weir were fine. The weir cover was a perfect fit around the oustide of it, beautifuly CNCed... however it was only 1" front to back instead of 6"!!!
The company is going to re-CNC the piece on Monday for delivery on Tuesday... Apparently the guy who CNCed it put the wrong dimensions into the computer and the drawing they had for the order was correct. Oh well, looks like I'm not filling the tank tomorrow afterall.
I'm off to go pick up the pipework that has just arrived, lets hope they sent the right parts at least!
Back to plumbing and making fake liverock with cement lol!
Well nearly finished the plumbing, forgot I didn't want to glue the return pipework to the bulkhead, so just waiting on a socket -> glued connector tomorrow. I've finished most of the rest of the pipework apart from the drain pipe that'll feed the screen.
This is where I've just realised something. Do correct me if I'm wrong here Santamonica:
Because this will be a single sided screen water will be flowing over one side of the screen only, normally in the original ATS design the water is split 50/50 between the front and back, so, should the 35gal/hour (132l/hour) be 17.5 (66l/hour) for a single side, as that would produce the same flow that a single side on a normal design would get?
In this case, my 22" wide single sided screen should need a minimum 385 us gal/hour or 1452l/hour?
The sump pump I've got does 5000 litres per hour, it however only coped with around 3500 litres/hour after having a 6ft x 1" (internal diameter) flexible hose put on the end, after going through all the complex pipework I'm expecting to get more like 2500 out of it.
If this is the case, I should have a fair amount more flow than I actually need, which isn't a bad thing unless it pushes the algae off, but I don't think it will.
I've tested my nifty spray outlet and it works nicely, will post some pics (put a short piece of pipe over the oven's hob until it went slightly soft and used some pliers to flatten the pipe)
You are theoretically correct about the split flow. But, a vertical screen has all the flow moving across the bottom; a horizontal screen might divide the flow to all edges of the screen; thereby reducing the flow at any given edge point. If this is the case, higher flow might be needed for a horizontal. You'll find out easily: After there is thick growth, if the flow is too low, clumps will block any flow from getting around it and downstream of it, and the downstream areas will turn into the yellow plastic stuff.
Yeah, I should be doing it at about a 30 degree slope, so it ought to flow fairly well, so I should still have more than enough flow, yay!
I think so too. As the water will want to dwell more too not being gravity driven to run off quite as fast. You will also get a deeper penetration of the turf with the water because part of the gravitational vector is pulling the water into the screen.
You may be rewriting the flow spec in the FAQ for horizontal screens!
Well I hope you guys wanted some photos, as I've pretty thoroughly documented this lot! (apologies in advance! :D)
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Nice! Thanks for the foto book!
Nearly there!
I'm filling the tank now directly from the RO/DI unit with 40ft of piping on the end of the outlet pipe, straight into the tank lol.
It's only filled 6" of water in around 12 hours, so it's likely to take a few days to half fill the tank, then I'll mix the salt, heat the water and put a powerhead inside, then pump the water across the room from the old tank.
Nearly finished the plumbing in the sump for the algae scrubber, not 100% sure the outlets are going to give an even enough spray over the screen, but shouldn't be too bad.
Next job is to get the glass cut to hold the panel of glass at an angle to support the screen, should get that done tomorrow, then the very last job is to get some powerful lights for the screen!
I'll probably run the tank without the lights, or some temporary lights for a few days while I sort it out and have the old scrubber that's still in the loft, connected via the 60ft of RO pipework =)
P.S. I just did a scientific test on the waterflow from the sump pump to the tank through all that 25mm (3/4" internal diameter) pipework.
I placed the pump with pipe in a bucket next to the sump, at the same height, I added water into it until it just covered the pump.
I then got another bucket, filled it up to the 10 litre mark, and added that to the bucket with the pump. Timed 15 seconds from the time the pump kicked in to drain 10 litres down to the same height (just above the top of the pump).
10 litres / 15 sec = 2/3 l per sec = 40 l per min = 2400 l per hour, which is bang on what I wanted (at least to start with, not so much now I realise it's one sided lol).
This is from a 5000 l/hour rated pump (with no head), but the pipe it's going through is about 3ft too long, so it may be a bit faster.