Shrimp rack weight - problem in high rise condo?

[daniel19831123]

I'm planning to start building a shrimp rack but due to space constrain, I'm thinking of using 2x1x1 tank with the narrow side facing the front. I'm intending of using 4 of the tank in a row sitting side by side and it will be sat on a multi tier rack. Knowing how much this unit will probably weigh (Nearly 1 tonne if not more), I'm anticipating that this plan is a no no since it's spread over 8 square foot area. Can anyone advise me on this? I know that there is regulation for HDB flats but does it apply to condo as well?


Dan

[hardric]

There is probably a set of rules and each owner has it. Read through it to see if there are any issues. It might not be mentioned though. Then you can either ask your MCST for advice or just do it. Actually many people in HDB never ask permission also do it. The same applies for condo. It's up to you.

[xconnect.]

i think its your choice but if something really wrong happen when u put these tanks the condo can really sue u for spoiling the house so depends...

[eviltrain]

how many tanks you intend to put?

for 1 tier with 4 2*1*1 tank filled with water will be around 54*4 = 216 litres.

its better for the base of your rack be legless.

[Ethan Pak]

The floor area is similar to a 422 tank stand. Your 4 sets of 211 is half the volume and therefore half the metric weight of a completely filled 422 tank. If you situate tanks and multi tier rack in most part house except raised balcony area, floor should be able to bear the loading. Here is the computation. A 2 tier 422 plus rack = less than 1 tonne (432kgx2 + 100kg).

4 sets of fully filled 211= 54kg x4= 216kg
If multi tier rack, pls ensure rack can carry load.
3 tier racking= 3x216kg= 648kg
Plus rack weight~60-80kg

Still less than 2 tier 422 tank and stand. If you are afraid, minimize point loading, but our floor is designed to distribute load, but if you afraid, place rack either on 2 pieces of planks (4ft by 1ft each) or 1 full piece of 1in thick 4ft x2ft plank.

Hope this helps.

[daniel19831123]

The rack will have 4 2x1x1. So it's roughly 216kg per level. My concern is that if I have 3 tier rack, it'll be over 600kg. Since the hdb advice is not have tank over 600 kg over 8 square foot area without seeking structural advice, I'm concern that this might pose a problem if this setup is kept in a condo. I'm not sure if the structural integrity of a condo is similar to those of a hdb flat.

The rack will be built with 4"x2" wood plank using discus hans setup. It should hold tons of weight. Would placing a wood plank on the floor make it helpful with distributing the weight? I'm assuming the plank is the same length as the tank which makes the effective area the same as the area of the tank. Furthermore, I would imagine the wood on the floor level to be less than ideal due to the amount of water spillage that will be inevitable.

Dan

[eviltrain]

1 question, what is the filtration for your individual tanks?r are you going to link them all up using sump + overflow system?

[daniel19831123]

yeap sump with overflow. The lowest tier will be a sump with moving bed filter.

[eviltrain]

like that you can cut the size of each indivdual to 1.5*1*1. this will cut the 1/4 of the total water weight for your rack.

[daniel19831123]

Hmm looks like that's what I will have to do. It's just that I hate the idea of having to drill a tank that small to fit an overflow. The alternative of not drilling it would be a big chunky pipe in the background. Does anybody know anyone that has a 2 tier 6x2x2 tank in a condo? If that can be done, then I'm well reassured.

[eviltrain]

You might wants to ask the condo management for advice first. If the condo is build according to code of practice, it should be the same as HDB where the maximum weight of the total number of fish tanks (inclusive of water, sand and accessories) supported on a four-legged rack or cabinet must not exceed 600 kg per room.

if base on 8( 2x1x1 ) tanks + sump (3x1.5x1.5) , the weight of water will be around 432 +182 = 614 kg ( water weight only ) you will have 14 kg to worry about

if base on 8x (1.5x1x1 ) + sump (3x1.5x1.5), the weight of water will be around 324 +182 = 506 kg ( water weight only ) you will have 94kg to play around with

if base on 8x ( 1x1x1 ) + sump (3x1.5x1.5), the weight of water will be around 216 +182 = 398 kg ( water weight only ) you will have 202kg to play around with

just my 2 cent worth of advice.

[daniel19831123]

Thanks. Very much appreciated. Either way, 600kg per 8 square foot should be a safe limit then I assume?

[eviltrain]

dont think it will be a problem if your base is not on legs. lets say 4 legs, each legs will have around 150kg on a 2.5cm sq area.

thats why i would recommand a flat base stand. the weight will evenly distribute out.