Journey to 20 footer L-Shape Tank

[tank_maker]

A) Background
We will be commissioning a L-shaped 20 feet tank within the the month of Feb 2012.

Would like to share the journey to realising this set up. And shall be glad to receive suggestion, commend etc C

B) Feature of Tank
The tank set will be installed in mid of Singapore.

Main Tank
1 no. 10ft (length)x 4.5ft (wide) x 3ft (height), full 19 mm Asahi glass EOS tank
1 no. 10ft (length) x 2.5 ft (wide) x 3ft (height), full 19 mm Asahi glass EOS tank

Cabinet
Water proof cabinet with metal cage support (2" x2" rust proof metal stand of shell thickness 2mm).

Shall follow up with posting on the tank fabrication process.

[tank_maker]

A) Cabinet Design
Due to the heavy loading concerned, a steel cage is fabricated as reinforcement to cabinet.
Following is the layout



B) Flow Layout



C) Addition Feature Planned:
- Aging tank - white fibre tub
- Water changing system (Semi- auto with manual overriding device)
- Electrical power back up - 1kVA sine wave UPS

[tank_maker]

A) Cabinet Design
Similarily, due to the heavy loading concerned, a steel cage of 16 vertical beams is fabricated as reinforcement to cabinet.

Following is the layout

[tank_maker]

The first tank size 10ft x 2.5ft x 3ft has been successfully commissioned.


1) Outlook
Following is the outlook and some shots of the salient features for the setup.

The setup will be further boxed up by carpentry work (full height).



2) Water filling
The water was loaded and conditioned using BioZym. The live stock was introduced within 24 hours.

[tank_maker]

3) On the top of Tank

Main Tank:
of size 10ft x 2.5ft x 3ft H, full 19mm Asahi glass.
of full euro-bracing and glass in glass deisgn.
Following is the detail


Return flow:
The system was power by 2 no. Ehiem 1264 pump as return flow; there is 3 dropping as shown on following picture.

Tank Cover:
6 no. 8mm thick Arylic was made as tank cover. the customer has forgo the glass cover due to the risk of glass dropped into the tank (which might damage the base of tank).



Lighting:
1 no 6ft T5 (4 tubes) + 1 no. 5ft T% (4 tubes) was incorporated.

Over flow Box:
The larger than normal over flow was fabricated. It cater 3 down flow pipings. Priminary filtration of mechanical form is catered by this box. Snap shot as follow


The overflow box has an inbuilt piping for auto water drain out (up to 50% of volume). More detail in 4) Sump/Piping section

[tank_maker]

4) Sump /Piping
Sump:
6ft x 2ft sump tank of thickness 10mm catered.
Due to the slight low profile stand, the sump is in rect. high.
Following is the detail



Piping:
- 3 no. 1in piping as down flow
- additional pipin is for water change
- Acrylic drip cover is used (not practiable to use glass due the large compartment.



Water Change piping:
- Additional valve and power head is catered to draw water upon water change. The overall water is 2.5 tons, with this device, water change speed is improved.

[tank_maker]

5) Supporting Stand

Basic Support:
- Cage design steel frame of 8 vertical beams of metal stand (2"x2", shell thickness 2mm; traditional stand of 1mm is not recommended).


- 4 no. 3"x2" chengnai beam as reinforcement support. It is extremely important to provided sound support for steel frame for they are hollow, and will be deformed or give way once over stress or rusted due to stress effect.
Each of chengnai beam 3" by 2" solid form can support up to 1 ton in vertical loading.
Overrall, just like the tank need good safety factor (of minimum 3.8 design factor), the stand will need 10.0 as safety factor.

- Water changing inlet
you might notice there is a small hole on the centre of over flow box. The hole is the inlet to water change.

[tank_maker]

6) UPS Support
There are 2 no UPS installed
- 1 no 1kVA sine wave power back up for Eheim 1264 (4 hours backup)
- 1 no 500VA square wave power back up for 2 no. air bubble pump (12 hours backup).
Following is the snap-shot.



Shall be back for update for this 10ft x 2.5 ftx 3ft setup once the carpentry work were to be completed.
Thank you.

[tank_maker]

1) Design Update

The 2nd 10ft tank has decided to reusd the existing tank instead of making brand new because the esixting tank was found to be in excellent condition.
The existing tank was built be Tank_Maker team in year 2004.

With this change of plan, there is cost saving for owner and reduce leadtime to up the setup.

Addition update is the L-shape that formed by 2 tanks will be moving a part; thus 1 no. 10ft tank will stay (against the wall) and another 10ft became the partitioned setup.

We are glad to see this update where the 2 tanks became main features of the house.

2) Moving out of 10ftx 4.5 ft tank
Following is the snap shot of the existing tank moving out of old house.

[tank_maker]

3) Moving In of 10Ft Tank

The tank was dismantled and moving into new site for installation by SG Bro.

With proper planing and care to the tank, the tank was moved successfully to the new site dispite the access path was not ready.

Both the owner and our team are 110% pleased with the moving that the 750kg 10ft tank is in good shape.
Following is the moving in