2 tier tank - How high can lower tier be above ground?

[bossteck]

Hi folks,

I am thinking of getting a 2 tier 5 x 2 x 2 set up. (Length is fixed, width and height may be changed).

Now, since I am not that young anymore, I was thinking of raising the lower tier to be as high up as possible, so that tank maintenance would not be that much of a back breaking work. Was thinking it would also be a good idea to increase the clearance between the lower and upper tier for the same reason.

Because I am looking at placing the tanks into a slight recess in my wall, the maximum height of the entire set up cannot exceed 6 feet 10 inches.

So now, (physicists, engineers and mathematician), what is the maximum height which I can safely set the lower tier of the tank to be, above the ground level, without compromising the stability of the set up. Assuming that both upper and lower tier tanks would be bare tank, filled up to say 80% capacity. What is the maximum clearance I can have between the lower tier tank and the upper tier tank?

Gentlemen, get your calculators!

[bossteck]

Anyone?

Just kidding about the physicists, engineers and mathematicians part. All comments are welcomed.

Or am I just being overly worried about the tank stability?

[tawauboy]

i think you need not worry about the stability. just raise it to a convenient height. as an precaution, you can anchor the stand to the wall.
however, you should be concerned about the loading on the floor. both tanks will add up to almost 1 ton (each tank has a capacity of 540 litres) over an area just under 1 sq meter. unless, you are staying on ground floor.

[vinz]

FYI, HDB requires you to apply for a permit to install large tanks.

Reason is to make sure that the tanks' weight is well distributed and not overloading the building's design. Generally they just need to know that your tank stand design and location is safe.

[bossteck]

Hi tawauboy,

Thanks for the advice.
Yes, I am aware of the weight, and given that they don't build flats like they used to last time, maybe i need to relook my plans again.

Cheers!

[vinz]

Regarding your original question, I think just make sure that the height of the lower legs are not taller then the width of your rack.

[bossteck]

Hi vinz,

Thanks for the advice regarding HDB regulations as well as that for the dimensions.

Cheers!