Bathrooms and general plumbing
Hot water in the shower only
Septic tanks to be 4 Number rings deep 1.2 m diameter
Separate tanks for toilet and waste water
I think that means we will need 3 tanks, 2 for the bathroom and 1 for the kitchen area
All tanks to be vented
Water for the house to be from the government supply
Well to be retained for watering the garden only
Floor in the shower to obviously drain to the floor drain
Bathroom foundation to be 100mm lower than the rest of the house
Access to drainage pipes ??? not sure what you do in Thai when a drain blocks
Filter system for drinking water ???