Can an overhead tank be built over the staircase?
Only if the stairs are in the North-West; otherwise not. Basically an overhead tank should not be built over the stairs, because hydro currents move as you walk below it and the mind becomes unsettled.
Related questions
A house has its entry in the Agni kon (South-East), an underground water tank in the South-East with the stairs over it, and the slope running to the South. The family fights constantly. What is the remedy?
Either leave the house or treat it: close the South-East underground water tank immediately and correct the slope. The staircase can stay. An overhead tank in the South-East is acceptable.
Can a swimming tank above floor level be made in the North or North-West?
Yes. Above floor level it works in the North and in the North-West, and in the North-West it can also be built high up like an overhead tank. A tank at ground floor that is raised, with no pit, is acceptable.
Can black granite steps be used for stairs in the North-West?
Use kota stone for steps in the North-West. Granite is best avoided in general, since it develops pin holes in which negativity settles.
Is an overhead tank right in NNW, and should it be in the South-West or the North-West?
Not in NNW. An overhead tank can be built from the West up to the North-West; making it in the South-West, as many people do, is wrong. Build it in the North-West.
A big peepal tree stands in the North-West of my own house and my health has suffered since I moved in; is it the cause?
Yes, it definitely causes trouble; a peepal tree there harms health. If the house were rented you could simply leave; since it is your own, give it on rent and live elsewhere.
A refrigerator is cold, so why can it be placed in the fire zone, and where should it go?
Cold is produced from heat and a refrigerator cannot run without fire, so it can be placed in the South-East of the kitchen. Using the kitchen's own grid, it can also go in the West, and the North-West is ideal according to astrology.