Drainage is listed under the water element. Is a drain line in the water zone negative?
Underground water movement 1.5 to 2.5 feet below the surface is not treated as directional, just as groundwater flows in every direction under the land; it becomes a dosh only when water is drawn up. So the drainage pattern itself is not a dosh. But a drain inspection chamber built at a wrong place and left open causes trouble, and dirty water flowing anti-clockwise has a considerable negative effect.
Related questions
Can a rectangular shape be used in the North?
It is better avoided. In the North, choose a half-moon type shape as far as possible.
If a planet's colour (for example Mercury's) cannot be used in its zone, can the colours of its friends or of the zone element's friends be used?
First see what Mercury is in your chart (exalted, bhagyesh or lagnesh, which supports health) and where it sits. If its own colour cannot be used in that zone, use the colours of Mercury's friends, and the colours of the friends of that zone's element must also be taken.
Is a rooftop water storage tank also counted as the water element?
Yes. Water stored anywhere, including on the roof, represents the water element. But if the tank is built in a square shape, it moves to the earth element, because the square is the earth element's shape, and it becomes an earth combination.
The waste water of the whole house goes out from the North. Does that have an effect?
If it goes out deep underground there is no bad effect. If it runs about 9 inches below the surface, the effect is very large. At about one and a half feet deep there is no bad effect.
A North window has its shutter kept closed. Can the shutter be removed and a jali (mesh) fitted?
Yes. The North results then start coming, though not fully; you get as much as is open. Through a window only air comes in, whereas people come in through the door.
A family with an N4 door has had only boys across generations. What can be done for a girl child?
N4, like N3 and W4, is a door that brings sons. Open an E2 door, which brings the birth of daughters. A home without a daughter is not a complete home.