Where much dishwashing is done, or where the discharge from the sink has some distance to go to reach the sewer or cesspool, one of the approved forms of grease trap should be used to intercept the grease. These can only be relied upon to remove part of the grease, and they need careful attention on the part of the servants to render them of service.


Slopsinks should have flushing rims with a flush tank supplied by a ball-cock. They should be free all round and be set with marble or slate floor and wall slabs, or metal splashboards.

Laundry Tubs

Lanndry tubs should be of porcelain, earthenware, soapstone, slate, cement, or other non-absorbent

* (Good suggestions for ground-water drain trap and connection with sewer is shown in "House Drainage and Plumbing Problems," pp. 45 and 47, and reprinted from ThE Engineering RECORD, prior to 1887 The Sanitary Engineer material. Avoid wooden tubs and wooden or other covers. All fixtures should be placed so as to receive direct light and outside ventilation. Avoid set fixtures in bedrooms and living-rooms or unventilated and ill-lighted closets adjoining them, and do away with fixtures not needed for constant or frequent use. The water seal evaporates from the traps of fixtures not frequently used, and leaves direct outlets for drain air.

Water Supply

The main water supply to the building should be laid below the frost line and should have a stop valve inside of the wall where the pipe enters the house. Care should be taken to see that there are no leaks in the buried pipe, as the cause of wet cellar walls has sometimes been traced to defects in the buried supply pipe. The pipes should be arranged to drain completely when water is shut off. Lead or galvanized wrought-iron pipe is preferred for general use, . dependent on the character of the water used. For country houses used only a portion of the year, from which the water would be turned off, lead should be used, as iron pipes rust quickly when empty of water.