New In-wall Project Begins

dougchambers said:
Fursphere - Didn't think about import taxes from Canada. Has anyone else had to pay a tax surcharge to bring equipment or tanks in from Canada?
Click to expand...

Gee, I hope not, isn't that what NAFTA was all about?
 
You only pay import taxes on goods manufactured outside the country. For example you live in the U.S. and purchase a tank from Canada made in China, then you pay duty or import tax. But if the tank is made in Canada then you have no problem.
 
The dart sequence has a 2" inlet and a 1.5" out.
I have one on a closed loop, 1.5" tank bulkhead on both the in and out. After it comes into the tank it get split up. The intake is a piece of 1.5" pvc about 30" long with fine slits cut into it. All this is covered up by rocks.
The other dart is my sump return.
 
Doug,
I just called and they do have great prices on the Seq 750 pumps.
Too bad the free shipping does not apply due to SW seals upgrade.
Did you order your OM 4-way yet? Since I know so little about them, I'm guessing that we:D should be going for the newer magnetic drive version vs the standard.
 
Pecan,

Too bad on the shipping, but itââ"šÂ¬Ã¢"žÂ¢s still the cheapest Iââ"šÂ¬Ã¢"žÂ¢ve found for the pump with the lifetime SW seals.

I havenââ"šÂ¬Ã¢"žÂ¢t ordered the 4-way yet but I will be getting the magnetic version. I spoke to Paul about it and he explained that one of the failure mechanisms of the existing design is when people are stirring around in the sand or moving rock. Sand or debris can get caught in the drum and stall the rotation. The drum is driven by a shaft which snaps to keep from burning out the pump. The shaft is easy to replace, but has to be replaced all the same. With the new magnetic design, you can simply pull the drum assembly apart, clean it out, and re-assemble.

Nice enhancementââ"šÂ¬Ã‚¦
 
I have to say... Fast service from AZponds. I called them at lunch time and already have the tracking number from UPS for today's shipment.
 
Doug,
That being said about the cleaning abilities of the magnetic design, how would you plumb it from the pump outlet on up? (true union ball valve before 4-way and then 4-way unit, then just the individual piping to your 2 bulkheads and the overheads?)

I might order my pumps from him also. $51 for the saltwater seals correct?
 
Pecan,

I plan to use a 2" ball valve on the pump inlet and a 1.5" or 2" gate valve between the pump and OM 4-Way. I prefer ball valves for on/off applications and gate valves for controlling flow rates.
Each of the outlets from the OM 4-Way will need to have a ball valve somewhere to isolate the 4-Way and allow for servicing.

Drain > Ball Valve(s) > Union > Pump Inlet/Pump Outlet > Union > Gate Valve > OM 4-Way Inlet/Outlet > Unions > Ball Valves > Tank Returns

That's off the top of my head, but that should allow the pump and 4-Way to be isolated from the tank without creating a 139g puddle on the floor.

You are correct, $51 for the seals or $230 delivered. Mine will be here Monday...

- Doug
 
Pecan and I are going back and forth on some Sequence pump information in a different thread. The information is applicable to some of the questions here so I thought I would cross it over.

Thanks Pecan!

Doug,
I emailed MDM and asked them the difference between the 3600SEQ12 and the Dart to see their opinion with regards to a reef application and here is what they responded with:

Hi MDM,
I wanted to ask you the difference between the Reef Flo Dart and the 750 series 3600 SEQ 12.

They both seem to pump the same amount of volume at 8 feet of head pressure and max out around 3500-3600 gph.

I know the Reef Flo Dart is your newer line and the volute design is different, but is one pump better or more reliable than the other?

Warren,

Your right, both units pump the same amount of flow at the same head pressure. The only difference is that the Reeflo Dart is made for salt water applications, which includes a 316 s.s salt water seal with a silicon carbide seat, and corrosion resistant spray that sprays on the motor shaft. The 3600SEQ12 comes standard with non-salt water seal which should be used on applications that don't include salt water. If requested, we can make the 3600SEQ12 fitted for salt water applications, but we would recommend using the Reeflo Dart since they are made for the purpose. If you have any other questions or concerns, please let us know.


Thanks,

Brian Maldonado
Sales Assistant
Click to expand...

We should be good to go on the 4200 with the upgraded seals.

-Doug
 
dougchambers said:
ftlaud - We looked at 30" deep, but it didn't look good proportionally on the wall.
Click to expand...


I find this very interesting. In looking at pictures and threads on inwall tanks, and I see a lot of tanks with dimensions like 72x24(high) or even 96x24 (high). The 30 inch high tanks while not uncommon seem to be in the minority. The ratios for these tanks works out to be:

48:24 - 2:1
72:24 - 3:1
72:30 - 2.4:1
96:24 - 4:1
96:30 - 3.2:1
48:30 - 1.6:1

Theoretically, this last one should be most appealing (remember the golden rectangle? ). My personal feeling is that many long tanks are too short and should be closer to 2:1 (which your 48:24 is). Personally, I don't like the look of tanks close to 3:1 as much. Just as a reference (thinking back to a recent thread in the lounge section re. home theater as a second hobby for reefkeepers), panavision is 2.35:1, HDTVs are 1.77:1 (16:9) and pan and scan/tvs of "old" are 1.33:1 (4:3)(yuck!). Just some interesting (IMO) observations as I am trying to decide on the size of our new tank.

David
 
... not taken into consideration in my last post, of course, are the proportions of the wall itself.


David
 
David,

Interesting "perspective" and data. After hours of playing with the dimensions in AutoCad, we ultimately ended up going out to the model home with a role of blue masking tape.

After a shorter period of time, it became pretty obvious which tank dimensions looked best on the wall. If the wall were larger, I would have pushed for a bigger tank, but as it was, the 48x24 looked best on the 8' wall.

-Doug
 
When you guys are looking at the heigth of a tank on a wall are you deducting for the trim at the bottom and top of the tank. For instance, if you plan on running a 6" dsb, you would probably want to put 6" or so of trim at the bottom and I would think your going to want at least an inch of trim at the top....giving you a viewing window of 17" on a 24" high tank!!
 
In most in-wall applications I've seen, the DSB is fully visible. In our case, we will be using ~0.75-1.0" of trim coverage on the tank. You are correct, our 48x24 tank will look like a 46x22 worst case.

I'm seriously considering a shallow sand bed in the main tank and a DSB in the refugium where it's easier to maintain. I don't like the bare bottom look, but I still need some sand for our clams that live on the tank floor. Not too sure yet...

-Doug
 
Fursphere -

We haven't had any problems with our DSB, but I've heard of so many that have. There is some elegance to a shallow bed that can be maintained without the concerns of crashing the tank. I like having sand for the clams and rock, but a full DSB may be more hassle than itââ"šÂ¬Ã¢"žÂ¢s worth this time. Then again, if itââ"šÂ¬Ã¢"žÂ¢s working, why change?

Keep us apprised of how your SSB works for you.

-Doug
 
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