15.1 Sanitary Flashcards
Issue with open drainage channels?
Health issue - germs easily spread
Rome 300 BC
Earliest covered sewer
First Outhouses in US
Independence Hall
3 Plumbing Codes
- National Association of Masters Plumbers (First)
- Standard Plumbing Code
- National standard plumbing code
Plumbing Elements
- Fixtures
- Sanitary Waste and Vent
- Cold and hot water
- Accessories
- Code
- Septic Code
What’s a lavatory?
a sink
What’s a water closet?
toilet
Plumbing Fixtures?
- Architectural Statement
- Lavatory
- Water closet
(Floor Mounted and Wall Mounted) - Carriers
- Americans With Disability Act
Contemporary fixtures uses _____ water than traditional fixtures.
Less
How do Floor Mounted Toilets work?
Discharge through floor. Piping in ceiling below. Residential.
How do Wall Mounted toilets work?
Discharge through rear of fixture. Raised above floor. Subject to damage. Commercial/Institutional.
What’s a flush tank?
Small fill line - take time to fill the tank. Residential use.
What’s a flush valve?
Discharge LARGE amount of water. Commercial use.
What’s a carrier?
provide structural support for wall mounted toilet. Integrated pipe connections.
What’s the difference between a drinking fountain and an electric water cooler?
Drinking fountain - warm drinking water
Electric water cooler - chilled with refigerator pump. ADA
Who tests the Americans with Disability ACT for restrooms?
ADA. Must be compliant.
What the radius for a wheelchair to turn in EVERY restroom?
5’
Why are dimensions put into a family restroom?
To be wheelchair ADA accessiable
What’s the purpose of a trap?
A liquid seal to seperate sewer gasses from room. Reduce odors from leaking.
What’s the purpose of a S-trap?
hold a small amount of water in piping to reduce gases from being able to pass through.
Problem: Siphon
What’s the purpose of a P-trap?
hole to vent at top to break siphon. Vent typically seen on roof of house.
Three ways to vent:
- admit air
- discharge air
- regulate pressure
Vent through roof (VTR) must be ____
3” to prevent freezing (foggy mirror)
What’s an air gap?
distance between flood rim and the fill of device.
What’s the purpose of a vacuum breaker?
Prevents back siphoning supply
Uses of a vacuum breaker:
hose bibbs, flush valves, direct connections
Why do hoses need a vacuum breaker?
prevent contamination of house water supply
Open Waste (Indirect Drain)
A funnel drain that puts air gap between sewer and drain. Food service
Backwater valve
when there’s a sewage backup, the backwater valve will close and prevent sewer from getting into your home.
Grease Interceptor
solids separate from grease. needed for food service.
Sewage Ejector
capable of pumping solids. generally use 2.
Waste/vent stack calculation
Look at notes.
Septic
a tank that separates solid waste from liquids and that has bacteria that break down the solid waste
What’s a perc test?
a tank that separates solid waste from liquids and that has bacteria that break down the solid waste
