060201d Residential Drainage Waste and Venting Flashcards
What is a second method of compensating for movement within a stack (other than expansion joint)?
Horizontal offset in piping that is a minimum of 1.5m (5’)
Average speed of sewage in sanitary building sewer?
2ft/sec
Max change of direction on sanitary building sewer?
45 degrees
Why must you use a normally open back water valve on the sanitary building drain/sewer?
Permits air flow within the plumbing system
Table for sizing sanitary building drain
2.4.10.6. C
Max change of direction on a sanitary building drain?
Max 135 degrees between cleanouts
The sanitary building drain ends at the . . .
last connected soil stack connection.
Table for size and spacing of cleanouts?
2.4.7.2. (2)
Table for sizing individual and continuous vents?
2.5.7.1.
Table for sizing wet vents?
2.5.8.1.
Minimum size wet vent serving a water closet?
2”
Minimum size continuous vent serving a water closet?
1 1/2”
A stack vent must be a minimum of _____ the size of the stack at its base.
1/2
A wet vent that is 2” or less may have a max horizontal offset of _____. Larger than 2” may have a max horizontal offset of _____.
1.2m , 2.5m
Minimum size roof penetration?
3” or one pipe size
Minimum size EFD?
2” if vented
Maximum change of direction on water closet trap arm?
225 degrees
Table for sizing branch vents, vent headers, circuit vents and continuous vents?
2.5.8.3.
Table for sizing waste branch?
2.4.10.6. B
Maximum length of continuous waste?
1200mm
Is a normally open backwater valve required in residential drainage?
No. Only when you have fixtures that are below the adjoining street level.
Code for water pressure testing a residential drainage system?
Fill system with water to a minimum height of 3 metres (10 feet) for 15 minutes with no leaks
