Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 412
PLUMBING 11/ house, and to keep the drains in the house filled with fresh air from theopen atmosphere (see page 117). With these conditions, a possibleleaky joint or defective trap can permit only comparatively pure air to enter from thepipe. The inter-cepting trap beingin the main line,all water… … Pig. 143. Intercepting Trap In Cellar, house lines if .the trap wereis never any contrary rush of air or water, both of which wouldcheck or reverse the current, and the latter of which reduces thearea of the pipe, even though it be assumed that no further inter-ference occurs through discharge from…
Architecture · Building · Carpentry
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